Team:Freiburg/Notebook Knockout

labor:cell_culture - iGEM 2017

Lab Notebook Knockout

06.05.2017

Retransformation of lenti-CAS9-puro plasmid

A heatshock transformation of XL10 gold was performed with the lenti-CAS9-puro plasmid.

07.05.2017

Producing overnight cultures

Two colonies were observed.
5 ml LB-Medium containing the appropriate antibiotic was inoculated and incubated overnight at 37°C, 180rpm.

Test digest of lenti-CAS9-puro

0.66 μg DNA ( 3ul ~ 220ng/μl)
0.25 μl NcoI-HF
1 μl CutSmart 10x buffer
5.75μl H20

Digestion at 37°C for 1 h.
→ Gel did not show separation of bands. Predicted fragments: ~6,100bp; 7,400bp

08.05.2017

Miniprep of lenti-CAS9-puro

Plasmid was extracted using the provided protocol (Quiagen Kit).
DNA was eluated in 30μl H2O.

09.05.2017

Test digest of lenti-CAS9-puro

2 μl Plasmid
0.25 μl NcoI-HF
1 μl CutSmart 10x buffer
6.75 μl H20

Digest was performed with lenti-CAS9-puro plasmids obtained from Minipreps and from the origial stock.
Digestion at 37°C for 1h.

Gel: 1.15h at 180V. Expected bands could be observed in all samples.

10.5.2017

Test digestion of Cathomen Cas9 plasmid

11.05.2017

Retransformation of knockdown plasmids

A heatshock transformation of XL10 gold was performed with the following plasmids: SDEN, SBEN, EDEN.
Plasmids were provided by AG Schamel.

12.05.2017

Producing overnight cultures of SDEN, SBEN, EDEN

5 ml LB-Medium containing the appropriate antibiotic was inoculated and incubated overnight at 37°C and 30°C; 180rpm.

13.05.2017

Retransformation of CAS9-GFP plasmid

A heatshock transformation of XL10 gold was performed with the CAS9-GFP plasmid.

Miniprep of SDEN, SBEN, EDEN

Plasmid was extracted using the provided protocol (Quiagen Kit).

Temp.Prep 1Prep 2Prep 3
30°C17,5 ng/μl24,0ng/μl34,0ng/μl
37°C53,1ng/μl18,4g/μl11,0ng/μl

14.05.2017

Producing overnight cultures CAS9-GFP

5 ml LB-Medium containing the appropriate antibiotic was inoculated and incubated overnight at 37°C; 180rpm.

15.05.2017

Miniprep of CAS9-GFP

Plasmid was extracted using the provided protocol (Quiagen Kit).
Prep 1: 404.4 ng/μl
Prep 2: 495.5 ng/μl

Testdigest of CAS9-GFP

origial stockPrep 1Prep 2
DNA0.25 μl1 μl1 μl
NcoI-HF0.25 μl0.25 μl0.25 μl
CutSmart 10x1 μl1 μl1 μl
H2O7.75 μl6.75 μl6.75 μl

Digestion at 37°C for 1h.
Expected fragments: ~500bp; 8,500bp.
Expected fragments were observed in all samples.

18.05.2017

PCR for HIF1A exons

2 μl DNA
1.25 μl Primer Fwd
1.25 μl Primer Rev
12.5 μl KAPA 2x

As template gDNA from JK, HUT and HPB All cells was used.
PCR program:
3 min. 95°C
15 sec. 95°C
15 sec. 54°C
20 sec. 72°C
10 min. 72°C

The expected bands were cut out of the gel and purified the next day; gel was stored at 4°C overnight.

19.05.2017

Gel extraction

Gel extraction was performed following the manufacturer's protocol (Quiagen Gel extraction kit).

Cell lineExon 5Exon 6Exon 8Exon 10
JK16.6 ng/μl33.5 ng/μl31.5 ng/μl20.6 ng/μl
HPB23.1 ng/μl34.6 ng/μl26.0 ng/μl12.2 ng/μl
HUT14.1 ng/μl15.9 ng/μl25.2 ng/μl18.6 ng/μl

Retransformation of KO-Kit plasmids

A heatshock transformation of XL10 gold was performed with the plasmids 101,104,203.

20.05.2017

Miniprep and Midiprep of several plasmids

Plasmid was extracted using the provided protocol (Quiagen Miniprep Kit).
The following plasmids were extracted: 203,104,101.

Plasmid was extracted using the provided protocol (JetStar Midiprep Kit).
The following plasmids were extracted: SDEN, SBEN, EDEN, lenti-CAS9-puro.

23.05.2017

Digestion of CAS9-GFP by BbsI

DNA from stock 2.
10 μl DNA [0.5ng/μl]
0.5 μl BbsI
2 μl 10x NEB2 buffer
5 μl H2O

Annealing of sgRNA oligos

5 μl 100mM of each Fwd and Rev ssOligos
10 μl 10x NEB2.1 buffer
80μl H2O
2 min. at 95°C cooling down in heatblock for 2h.

Testdigest of KO-Kit plasmids

Digest with EcoRV.
1.5 μl 10x Buffer
2 μl DNA
1 μl EcoRV
10,5 μl H2O
(Gelpicture-number:299)

Midiprep of SBEN, lenti-CAS9-puro

Plasmid was extracted using the provided protocol (JetStar Midiprep Kit).
The following plasmids were extracted: SBEN, lenti-CAS9-puro.

25.05.17

Testdigest of KO-KIT (101,104,203) with EcoRV

VolumeComponent
1,5μl Buffer
2μl DNA
1μl EcoRV
10,5μl H2O

Digest at 37°C for 1h. Gel: undigested 203_2, 203_2, 203_1, 101_2, 101_1, 104_2, 104_1, ladder
Img: 300-303

Ligation of sgRNAs 1;3 into CAS9 GFP

No colonies from 24.05.17
Transformation with heatshock protocol of 10μl of remaining ligation from 24.05.17

26.05.17

Sitedirected mutagenesis (SDM) Q5 PCR with sgRNA overhang primers.

Test with sgRNA 1;20

VolumeComponent
12.5μl Q5 2x Mastermix
1.25μl 10μM Fwd Primer
1.25μl 10μM Rev Primer
1μl 40 ng/μl CAS9-GFP
9μl H2O
Temp.[°C]TimeCycles
9830 sec.
9810 sec.
54/6145 sec.
724.5 min.
9810 sec.24
64/7030 sec.24
723 min.24
4 2 min.
  • Agarose Gel showed bands at wrong size (4kb)
  • Gelextraction
  • not further used

Ligation of sgRNA in CAS9-GFP

  • Few colonies observed
  • Plates thrown out because nonsense

27.05.17

Test of Midi Prep Kit

use of different Kits & performed at 2 Labs
similar concentrations observed

28.05.17

SDM PCR sgRNA1 CAS9GFP gradient

VolumeComponent
12.5μl Q5 2x Mastermix
1.25μl 10μM Fwd Primer
1.25μl 10μM Rev Primer
1μl 40 ng/μl CAS9-GFP
9μl H2O

Program, gradient PCR:

Temp.[°C]TimeCycles
9830 sec.
9810 sec.
61/62/63/6445 sec.
724.5 min.
9810 sec.24
70/71/72/736.5 min.24
4 2 min.
  • Agarose gel: loading low temp → high temp
  • 8kb band observed (expected 9kb)

29.05.17

SDM PCR for all sgRNAs CAS9-GFP

VolumeComponent
12.5μl Q5 2x Mastermix
1.25μl 10μM Fwd Primer
1.25μl 10μM Rev Primer
1μl 40 ng/μl CAS9-GFP
9μl H2O

program: sgRNAs 1;5;20

Temp.[°C]TimeCycles
9830 sec.
9810 sec.
6345 sec.
724.5 min.
9810 sec.24
726.5 min.24
4 2 min.

program: sgRNAs 3;4;9

Temp.[°C]TimeCycles
9830 sec.
9810 sec.
5945 sec.
724.5 min.
9810 sec.24
728 min.24
4 2 min.

30.05.17

BsmBI digest of lenti-CAS9-puro (AG Cathomen)

20μl ~80ng/μl lenti-CAS9
5μl 10x NEB 3.1 Buffer
0.2μl BsmBI
24μl H2O

@55°C; 1h incubation.

SDM PCR of sgRNA1 vs. ctrl

Image: 315

31.05.17

SDM PCR for sgRNA5;20

VolumeComponent
12.5μl Q5 2x Mastermix
1.25μl 10μM Fwd Primer
1.25μl 10μM Rev Primer
1μl 40 ng/μl CAS9-GFP
9μl H2O

program: sgRNAs 5;20

Temp.[°C]TimeCycles
9830 sec.
9810 sec.
5945 sec.
724.5 min.
9810 sec.24
728 min.24
4 2 min.
Mix 1: sgRNA 1;5;20Mix 2: sgRNA 1;5;20Mix 3: sgRNA1
volumecomponentvolumecomponentvolumecomponent
12.5μl Q5 2x Mastermix5μlQ5 Buffer12.5μl Q5 2x Mastermix
1.25μl 10μM Fwd Primer0.125μl40mM dNTPs1.25μl 10μM Fwd Primer
1.25μl 10μM Rev Primer1.25μl 10μM Fwd Primer1.25μl 10μM Rev Primer
1μl 40 ng/μl CAS9-GFP1μl400ng/μl CAS9-GFP1μl 40 ng/μl CAS9-GFP
0.25μlQ5 Polymerase
9μl H2O16,125μlH2O9μl H2O

Gelextraction of sgRNA1 in CAS9-GFP

BsmBI digest of lenti-CAS9-puro

volumecomponent
20μl~70ng/μl plasmid
2.5μl10x NEB 3.1
0.2μlBsmBI
12.3μlH2O

01.06.17

CAS9-GFP-sgRNA1 T4 ligation & DpnI digest

volumecomponent
4μl Gel extract
1μl T4 ligase
2μl 10x T4 Buffer
13μlH2O
volumecomponent
2μl Ligation
1μl Cutsmart 10x Buffer
1μl DpnI
6μl H2O

Transformation of XL10gold with heatshock protocol

  • Ligated digest of CAS9-GFP-sgRNA1
  • pipette tip of CAS9-GFP stock

Maxi Prep Kit of KO-KIT plasmids

Zymo Maxi Prep Kit Zentrifugationsprotocol
200ml LB-Amp overnight culture

  • scramble plasmid: 144.3 ng/μl (400μl)
  • plasmid 203: 134.9 ng/μl (400μl)
  • plasmid 104: 115.0 ng/μl (400μl)

02.06.17

SMD PCR CAS9-GFP sgRNA 1;5;20;ctrl

protocol as previously; control with primers for sgRNA20

BsmBI digest of lenti-CAS9-puro

volumecomponent
20μl~70ng/μl plasmid
2.5μl10x NEB 3.1
0.2μlBsmBI
12.3μlH2O

samples taken at 2; 2.5; 3 hours

SDM PCR CAS9-GFP-sgRNA5

labbook weird O.o

Inoculation of 5ml culture LB-Amp with XL10gold

  • 5 colonies sgRNA1
  • 2 CAS9-GFP empty

03.06.17

BsmBI digest of lenti-CAS9-puro

volumecomponent
20μl~70ng/μl plasmid
2.5μl10x NEB 3.1
0.5μlBsmBI
7μlH2O

digest @ 55°C for 2h
10μl [50 ng/μl] plasmid loaded as control
Image: 333/334

Midi Prep

  • CAS9-GFP empty
  • CAS9-GFP sgRNA1

Production of glycerol stocks 1x CAS9-GFP; 5x CAS9-GFP-sgRNA1

SDM PCR of CAS9-GFP sgRNA5

Protocol same as 26.05.17
Dilution series of plasmid stock: 200ng/μl; 100ng/μl; 50ng/μl; 25ng/μl; 12.5ng/μl; 6.25ng/μl
New 1:10 dilution of primer stock was made

04.06.17

PCR eGFP-fragment for SGEN plasmid

volumecomponent
10μl5x Q5 Buffer
1μl10mM dNTPs
2.5μl10mM FW primer (olG17_111)
2.5μl10mM RW primer (olG17_110)
0.2μlTemplate (plG_9)
0.5μlQ5 Polymerase
33.3μl H2O
Temp. [°C]TimeCycles
9830 sec.
9810 sec.33
6730 sec.33
7220 sec.33
722 min.

PCR SDEN short fragment for SGEN plasmid

volumecomponent
10μl5x Q5 Buffer
1μl10mM dNTPs
2.5μl10mM FW primer (olG17_109)
2.5μl10mM RW primer (olG17_108)
0.2μlTemplate (1754 base fragment of SGEN)
0.5μlQ5 Polymerase
33.3μl H2O
Temp. [°C]TimeCycles
9830 sec.
9810 sec.33
6730 sec.33
7220 sec.33
722 min.

SDEN BamHI digest

volumecomponent
2μlPlasmid (SDEN)
3μlCut Smart 10x Buffer
1μlBamHI
24μlH2O

Digest at 37°C for 1 hour. Expected fragment lenght: 4768 bp, 2386 bp.
Gel extraction of GFP-fragment. Obtained concentration: 7,8 ng/μl.

CAS9-GFP-sgRNA 5 Ligation

Mix 1: 200ng/μl template (12kb fragment)Mix 2: 200ng/μl template (10kb fragment)Mix 3: 50ng/μl template (10kb fragment)
volumecomponentvolumecomponentvolumecomponent
8μl purified PCR product8μl purified PCR product8μl purified PCR product
2μl T4 ligase 10x buffer2μl T4 ligase 10x buffer2μl T4 ligase 10x buffer
1μl T4 ligase1μl T4 ligase1μl T4 ligase
9μl H2O9μl H2O9μl H2O

Plasmids were ligated for 2 hours at 16°C.

Ligated plasmid was digested with DpnI for 1 hour at 37°C.

volumecomponent
4μl Ligated plasmid
1μl Cut Smart 10x buffer
1μl DpnI
4μl H2O

Oligocloning sgRNA1/3 in lenti-CAS9-puromycin

volumecomponent
7μl 11kb fragment of BsmBI digested lenti-CAS9-puromycin plasmid
1μl50nM dilution of annealed dsOligo (sgRNA1/3)
1μl T4 ligase 10x Buffer
1μl T4 ligase

As a control 1μl H2O was used instead of dsOligos.

Transformation of XL10gold via heatshock transformation

  • 3 Ligated & digested CAS9-GFP-sgRNA5 plasmid
  • sgRNA1/3/control of lenti-CAS9-puromycin plasmid

Heatshock transformation was performed accoarding to the heatshock protocol.

05.06.17

Digest of lenti-CAS9-puromycin

volumecomponent
15μl Plasmid [c=70 ng/μl]
0,5μl BsmBI
2,5μl NEB 3.1 10x buffer
7μl H2O

Digest for 2 hours at 55°C.
Gel: with EtBr.

SDM PCR for CAS9-GFP-shRNA3;4;9

volumecomponent
12,5μlQ5 MasterMix 2x
1,25μlFW primer (for sgRNA3,4,9)
1,25μlRW primer (for sgRNA3,4,9)
1μlCAS9-GFP plasmid
9μlH2O

PCR program: sgRNA insertion 2.

steptemperature (°C)time
1 98.0 00:30
2 98.0 00:10
3 57.8 00:45
4 70.8 06:30
5 98.0 00:10
6 70.8 07:00
7 72.0 10:00
8 72.0 pause

Steps 2 to 4 were repeated 1x and steps 5 to 6 were repeated 24x

06.06.17

Miniprep of overnight lenti-CAS9-sgRNA3

Miniprep was performed accoarding to the manufactors protocol.

SDM PCR for sgRNA3,4,9

volumecomponent
1μlCAS9-GFP plasmid
0,5μlFW primer (for sgRNA3,4,9)
0,5μlRW primer (olG_118)
2,5μl10x Taq buffer
0,5μldNTPs
1μlTaq (peqlab)
19,875μlH2O

Annealing at 54°C, Elongation 72°C for 40sec., 30 cycles.

07.06.17

Gelelectrophoresis of PCRs

SDM all failed.
Colony PCR positive for

  • sgRNA5 in CAS9-GFP
  • sgRNA in lenti-CAS9-puromycin

SDM PCR for CAS9-GFP-shRNA3,4,9

volumecomponent
12,5μlQ5 MasterMix 2x
1,25μlFW primer (for sgRNA3,4,9)
1,25μlRW primer (for sgRNA3,4,9)
1μlCAS9-GFP plasmid
9μlH2O

PCR program: sgRNA insertion 2.

Gel: 363,364
Loading: sgRNA9, sgRNA4, sgRNA3

08.06.17

Colonie PCR for sgRNA 1,3,5

volumecomponent
1μlPurified plasmid
0,5μlFW primer (for sgRNA1,3,5)
0,5μlRW primer (olG_118)
2,5μl10x Taq buffer
0,5μldNTPs
0,125μlTaq (peqlab)
19,875μlH2O

Picture: 373

09.06.17

Digest of lenti-CAS9-puromycin with BsmBI

volumecomponent
15μllenti-CAS9-puromycin [c=70ng/μl]
0,5μlBsmBI
2,5μlNEB 3.1 10x Buffer
7μl H2O

Digest for 2 hours at 55°C.

10.06.17

SDM PCR for CAS9-GFP-sgRNA3,4,9

volumecomponent
12,5μlQ5 MasterMix 2x
1,25μlFW primer (for sgRNA3,4,9)
1,25μlRW primer (for sgRNA3,4,9)
1μlCAS9-GFP plasmid
9μlH2O

PCR program: sgRNA insertion 2.

Ligation of sgRNA 4,5,9,20 into lenti-CAS9-puromycin plasmid

volumecomponent
7μl 11kb fragment of BsmBI digested lenti-CAS9-puromycin plasmid
1μl50nM dilution of annealed dsOligo (sgRNA4/5/9/20)
1μl T4 ligase 10x Buffer
1μl T4 ligase

As a control 1μl H2O was used instead of dsOligos.

Heatshock transformation of XL10gold

Heatshock transformation was performed accoarding to the heatshock protocol.

Digest of lenti-CAS9-puromycin with BsmBI

volumecomponent
15μllenti-CAS9-puromycin [c=70ng/μl]
0,5μlBsmBI
2,5μlNEB 3.1 10x Buffer
7μl H2O

Digest for 2 hours at 55°C.

Agarose gel for CAS9-GFP-sgRNA3,4,9

Pic:

11.06.17

Minipreps of CAS9-GFP-sgRNA1, CAS9-GFP, lenti-CAS9-puromycin

Minipreps were performed accoarding to the manufacturer's protocol.

SDM PCR for CAS9-GFP-sgRNA3,4,9

volumecomponent
12,5μlQ5 MasterMix 2x
1,25μlFW primer (for sgRNA3,4,9)
1,25μlRW primer (for sgRNA3,4,9)
1μlCAS9-GFP plasmid
9μlH2O

PCR program: sgRNA insertion 2.

12.06.17

Minipreps of lenti-CAS9-puro-sgRNA4,5,9,20

Minipreps were performed accoarding to the manufacturer's protocol.

Gelextraction of CAS9-GFP-sgRNA3,4,9

Gelextraction was performed accoarding to the manufacturer's protocol.

13.06.17

CAS9-GFP-sgRNA 5 Ligation

volumecomponent
8μl purified PCR product
2μl T4 ligase 10x buffer
1μl T4 ligase
9μl H2O

Plasmids were ligated for 2 hours at room temperature. Ligated plasmid was digested with DpnI for 1 hour at 37°C.

volumecomponent
4μl Ligated plasmid
1μl Cut Smart 10x buffer
1μl DpnI
4μl H2O

10μl ligated and digested plasmid was transformed using the heatshock protocol.

Heatshock transformation of XL10gold with CAS9-GFP-sgRNA3,4,9

Transformation of XL10gold was performed accoarding to the heatshock protocol.

14.06.17

SDM PCR for CAS9-GFP-sgRNA20

volumecomponent
12,5μlQ5 MasterMix 2x
1,25μlFW primer (for sgRNA20)
1,25μlRW primer (olG_118)
1μlCAS9-GFP plasmid
9μlH2O

PCR program: sgRNA insertion 2.

15.06.17

Gelextraction of CAS9-GFP-sgRNA20

Gelextraction was performed accoarding to the manufacturer's protocol.

Gibson-Assambly

volumecomponent
1,8μl SDEN backbone
1,4μl SDEN fragment
1,8μl GFP
5μl assembly-mix
  • 15 min. at 55°C
  • thaw Dh5α on ice
  • add 5μl Gibson-mix
  • incubate on ice for 10 min.
  • add 900μl LB-media
  • incubate for 1 hour at 37°C
  • spread on LB-Amp plate

16.06.17

CAS9-GFP-sgRNA20 Ligation

volumecomponent
8μl purified PCR product
2μl T4 ligase 10x buffer
1μl T4 ligase
9μl H2O

Plasmids were ligated for 2 hours at room temperature.

Restriction digest of SDEN-Backbone BamHI

volumecomponent
5μlSDEN
2μlCutSmart 10x Buffer
1μlBamHI
12μlH2O
  • Incubate for 2 hours at 37°C
  • Incubate for 20 min. at 65°C
  • Dephosphorylation:
volumecomponent
10μl Antarctic phosphotase buffer
1μl Antarctic Phosphotase
  • Incubation for 10 min. at 37°C
  • Gel purification (1% agarose, 115V, 30 min.)

Gibson-Assambly

volumecomponent
1,8μl SDEN backbone
1,4μl SDEN fragment
1,8μl GFP
5μl assembly-mix
  • 15 min. at 55°C
  • thaw Dh5α on ice
  • add 5μl Gibson-mix
  • incubate on ice for 10 min.
  • add 900μl LB-media
  • incubate for 1 hour at 37°C
  • spread on LB-Amp plate

17.06.17

Colony PCR

  • for plasmid CAS9-GFP-sgRNA3/9
  • lenti-CAS9-puro-sgRNA1/3
  • positive control RNA5_col3

Annealing changed to 58°C

digest of CAS9-GFP-sgRNA20 with DpnI

volumecomponent
4μlLigation
1μlCut Smart 10x buffer
1μlDpnI
4μlH2O

Digest for 1 hour at 27°C. 10μl were transformed into XL10gold using the heatshock protocol.

Annealing of sgRNA oligos

volumecomponent
5μl100mM of each Fwd and Rev ssOligos
10μl10x NEB2.1 buffer
80μlH2O

2 min. at 95°C cooling down in heatblock for 2h.

BsmBI digest of lenti-CAS9-puromycin

volumecomponent
1μllenti-CAS9-puromycin
1,5μl10x NEB 3.1 buffer
0,5μlBsmBI
12μlH2O

Digest for 2 hours at 55°C.

Miniprep of SGEN-Gibson Colony

Minipreps were performed accoarding to the manufacturer's protocol.
Testdigest with NotI not succesful.

18.06.17

Ligation of sgRNA scramble into lenti-CAS9-puromycin

volumecomponent
7μl 11kb fragment of BsmBI digested lenti-CAS9-puromycin plasmid
1μl50nM dilution of annealed dsOligo (sgRNAscramble)
1μl T4 ligase 10x Buffer
1μl T4 ligase

10μl were used for heatshock transformation.

Heatshock transformation of XL10gold

Heatshock transformation was performed accoarding to the heatshock protocol.

19.06.17

Miniprep of 7 SGEN-Gibson colonies

Minipreps were performed accoarding to the manufacturer's protocol.
Positive colonies were observed for colony 1,4,5 and 7.

SDM PCR for CAS9-GFP-sgRNAscramble

volumecomponent
12,5μlQ5 MasterMix 2x
1,25μlFW primer (for sgRNAscramble)
1,25μlRW primer (olG_118)
1μlCAS9-GFP plasmid
9μlH2O

PCR program: sgRNA insertion 2.

10μl were used for heatshock transformation.

Heatshock transformation of XL10gold

Heatshock transformation was performed accoarding to the heatshock protocol.

20.06.17

Test digest of SGEN-Gibson clolonies

volumecomponent
x80ng DNA
0,2μlNotI
2μl Cut Smart 10x buffer
to 20μlH2O

Digest for 45 minutes at 45°C.

Heatshock transformation of colonies 1,2,4,5,7.

Heatshock transformation of Dh5α

Heatshock transformation was performed accoarding to the heatshock protocol.

21.06.17

digest of CAS9-GFP-sgRNA4,3,9 with DpnI

volumecomponent
4μl Ligation
1μl Cut Smart 10x buffer
1μl DpnI
4μlH2O

Digest for 1 hour at 37°C.
10μl was used for transformation.

Heatshock transformation of XL10gold

Heatshock transformation was performed accoarding to the heatshock protocol.

21.06.17

Sequencing

PlasmidSequencing Primer
SGEN 1Seq SBEN 2
SGEN 2Seq SBEN 2
SGEN 3Seq SBEN 2
SGEN 4Seq SBEN 2
SGEN 5Seq SBEN 2
CAS9-GFP-sgRNA20 1olG_117
CAS9-GFP-sgRNA20 2olG_117
CAS9-GFP-sgRNA3 1olG_117
CAS9-GFP-sgRNA9 1olG_117
lenti-CAS-sgRNA1olG_117
lenti-CAS-sgRNA3olG_117

22.06.17

SDM PCR for shRNA Inserts

volumecomponent
10μl Template
10μl Q5 5x buffer
1μl 10μM dNTPs
2,5μl FW primer
2,5μl RW primer
0,5μl Q5 polymerase
23,5μl H20
Temp.[°C]TimeCycles
9830 sec.
9810 sec.33
6630 sec.33
7220 sec.33
722 min.24

24.06.17

overnight culture

Overnight culture was prepared from glycerol stocks. Plasmid 101, 104,203 of Origene KO-Kit.

25.06.17

overnight culture

100ml for Midi prep was prepared for plasmid 101, 104,203 of Origene KO-Kit.

26.06.17

Midi prep

Midi prep for plasmid 101, 104,203 of Origene KO-Kit was performed accoarding to the manufacturer's protocol.

27.06.17

Heatshock transformation

Heatshock transformation of KO-Kit scramble sgRNA was performed accoarding to protocol.

Colony PCR of lenti-CAS9-puro plasmids

volumecomponent
1 μl Template
2 μl 10x Buffer
0.4 μl 10 μM dNTPs
1 μl FW primer
1 μl RW primer
0.25 μl Taq polymerase
14.35 μl H20

Expected bands: 2,804 bp

Overnight digest of lenti-Cas9

volumecomponent
2.5 μl Plasmid (500ng/µl)
1 µl BsmBI
5 µl 3.1 10x buffer
41.5 µl H2O

Digest overnight at 55°C.

Picture nr. 468

Colony PCR of Cas9-GFP sgRNA1/4/scramble and lenti-Cas9 sgRNA5

Colony PCR was performed according to protocol.
For Cas9-GFP: forward primer was singlestrand oligo forward as used to produce double strand oligos for cloning, revese primer 118.
For lenti-Cas9: primers 117 and 118.
Annealing at 58°C.

28.06.17

Digest of lenti-Cas9 with BsmBI

volumecomponent
1 μl Template
2 μl 10x Buffer
0.4 μl 10 μM dNTPs
1 μl FW primer
1 μl RW primer
0.25 μl Taq polymerase
14.35 μl H20

Expected bands: 2,804 bp

Picture no. 465

Overnight digest of lenti-Cas9

volumecomponent
2.5 μl Plasmid (500ng/µl)
1 µl BsmBI
5 µl 3.1 10x buffer
41.5 µl H2O

Digested for 2h at 55°C.
Gel overnight 2h undigested, picture nr. 468

Miniprep of lenti-Cas9

Miniprep was performed according to the manufacturer's protocol.

PCR of knockdown inserts

Templates (97meres): olG17_112 to olG17_116.

volumecomponent
10.0 µl 5x Q5Bfr
1.0 µl dNTPs (10mM)
2.5 µl 5'mirEXhoIfw (10 µM)
2.5 µl 3'mirEEcoRIrv (10 µM)
2.0 µl template (0.01 ng/µl)
0.5 µl Q5 Pol
31.5 µl H2O

PCR program as described on 22.06.17.
Purification with PCR purification kit according to the manufacturer's protocol (Qiagen), elution in 30 µl H2O.

Digest of lenti-Cas9 with BsmbI

volumecomponent
2.5 μl Plasmid (500ng/µl)
1 µl BsmBI
5 µl 3.1 10x buffer
41.5 µl H2O

Digested at 55°C for 2 h.

volumecomponent
25 μl Plasmid (500ng/µl)
1 µl BsmBI
5 µl 3.1 10x buffer
19 µl H2O

Digested at 55°C overnight.

volumecomponent
2.5 μl Plasmid (500ng/µl)
1 µl BsmBI
5 µl 3.1 10x buffer
41.5 µl H2O

Digested at 37°C overnight.

29.06.17

Digest of lenti-Cas9 with BamBI

volumecomponent
2.5 μl Plasmid (500ng/µl)
1 µl BsmBI
5 µl 3.1 10x buffer
41.5 µl H2O

Digested at 55°C for 2 h.

Miniprep of lenti-CAS9

No. 1 grew at 30°C, No. 2&3 at 37°C.
Miniprep was performed according to manufacturer's protocol.
1 µl of mini was loaded on gel (picture no. 473).

30.06.17

Gel extraction of digested lenti-Cas9

Gel extraction was performed according to manufacturer's protocol.

01.07.17

Dephosphorylation of backbone

Was performed according to manufacturer's protocol (Fast AP).

Ligating sgRNA into lenti-Cas9 backbone

Annealed sgRNA oligos: 1, 3, 4, 5, 9, 20

volumecomponent
7 µl backbone (9.3 ng/µl)
1 µl annealed sgRNA oligo (50 nM)
1 µl 10x T4 buffer
1µl T4

Transformation of ligation

sgRNAs: 1, 3, 4, 5, 9, 20 & scramble of KO kit Transformation was performed according to heat shock protocol.
–> Only colonies containing sgRNAscramble were obtained.

02.07.17

Digest of lenti-Cas9 with BSmbI

volumecomponent
2.5 μl Plasmid (500ng/µl)
1 µl BsmBI
5 µl 3.1 10x buffer
41.5 µl H2O

Digested at 55°C for 2 h.

Ligating shRNA into lenti-Cas9 backbone

sgRNAs: 1, 3, 4, 5, 9, 20

volumecomponent
7 µl backbone (9.3 ng/µl)
1 µl annealed sgRNA oligo (50 nM)
1 µl 10x T4 buffer
1µl T4

Ligation was performed at 16°C overnight.

03.07.17

Transformation of ligation

sgRNAscramble served as control.
Transformation was performed according to heat shock protocol.

04.07.17

Gel extraction and ligation

volumecomponent
12 µl backbone
1 µl sgRNA 1 & 9
1 µl 10x T4 buffer
1µl T4

Ligation was performed 37°C for 2 h.

Digest of lenti-Cas9 with BsmBI

Digest reaction a)

volumecomponent
2.5 μl Plasmid (500ng/µl)
1 µl BsmBI
5 µl 3.1 10x buffer
41.5 µl H2O

Digest reaction b)

volumecomponent
15 μl Plasmid (100ng/µl)
1 µl BsmBI
5 µl 3.1 10x buffer
29 µl H2O

05.07.17

Colony for miniprep

5µl LB containing bacteria from colonies lenti-Cas9 c1 and c2 were incubated overnight.

Digest of lenti-Cas9 with BsmBI

volumecomponent
20 μl Plasmid (30ng/µl - 50 ng/µl)
1 µl BsmBI
5 µl 3.1 10x buffer
24 µl H2O

07.07.17

Digest of lenti-Cas9 with BsmBI

volumecomponent
2 μl Plasmid (250 ng/µl, prepped the day before)
2 µl BsmBI
2.5 µl 3.1 10x buffer
18.5 µl H2O

Digest was performed at 55°C for 2 h.

DpnI digest of Cas9-GFP ligations

sgRNA1 (PCR on 30.05.17, ligation on 01.06.17)
sgRNA4 (PCR on 10.06.17, ligation on 13.06.17)
sgRNA9 (PCR on 10.06.17, ligation on 13.06.17)
sgRNA20 (PCR on 14.06.17, ligation on 16.06.17)

Digest reaction a) for each sgRNA

volumecomponent
1 μl DpnI
1 µl CutSmart
2 µl ligation
6 µl H2O

Digest reaction b) for each sgRNA

volumecomponent
1 μl DpnI
1 µl CutSmart
4 µl ligation
4 µl H2O

Transformation into XL10gold performed according to heat shock protocol (06.05.17).

Test digest of Cas9-GFP sgRNA1 and sgRNA9

Cas9-GFP sgRNA1 colonies (PCR on 30.05.17)

volumecomponent
0.5 μl NdeI
x µl Cas0-GFP sgRNA1 plasmid (1µg)
1 µl CutSmart bufffer
8.5-x µl H2O

Cas9-GFP sgRNA9 colonies (PCR on 10.06.17)

volumecomponent
0.25 μl NcoI
x µl Cas0-GFP sgRNA1 plasmid (1µg)
1 µl CutSmart bufffer
8.75-x µl H2O

Heatshock transformation of Cas9-GFP plasmids

Transformation of Cas9-GFP sgRNA3 colonies 3/6 and sgRNAscramble colonies 2/4 into XL10gold was performed according to heatshock protocol.

08.07.17

Test digest of sgRNA3 and sgRNA scramble

abcdcomponent
1 µl 1 µl 2 µl 2 µl NdeI
4 µl - 4 µl - sgRNA c4 (250 ng/µl)
- 8 µl - 8 µl scramble c3 (250 ng/µl)
1 µl 1 µl 1 µl 1 µl CutSmart
4 µl - 4 µl - H2O

Digest was performed at 37°C for 2 h.

Colonies picked

Colonies were picked for sgRNA4 and sgRNA1 (5 colonies each) and sgRNA9 (2 colonies). Since no colony grew for sgRNA 20, the plate was incubated a second night. One picked for each re-trafo.

09.07.17

Test digest of 5 colonies sgRNA1 in Cas9-GFP

volumecomponent
x µl plasmid (1 µg)
1 µl NdeI
1 µl CutSmart
8-x µl H2O

Digest was performed at 37°C for 2 h.
sgRNA scramble, colony 3 negative control, colony 4 positive control.

Re-trafos sgRNA3/scramble

From overnight cultures of sgRNA3 and sgRNAscramble re-trafos 2 glycerol stocks, 1 miniprep (5.5 ml) and 1 overnight culture for midiprep (100ml made with 4 ml cultured bacter9a) were made for each sgRNA.
From overnight cultures of sgRNA1, sgRNA4 and sgRNA9 re-trafos 4 glycerol stocks and 4 minipreps were made for all sgRNAs.

10.07.17

Restriction digest of knockdown backbone SDEN

volumecomponent
6.3 µl SGEN backbone (5 µg)
2 µl 10x CutSmart
1 µl EcoRI
1 µl XhoI
9.7 µl H2O

Digest was performed for 2 h at 37°C.
Inactivation took 20 min at 65°C.

Dephosphorylation

volumecomponent
10 µl antarctic phosphatase buffer
1 µl antarctic phosphatase
10 µl digested plasmid

Dephosphorylation took 10 min at 37°C.

Restriction digest of PCR fragments of knockdown inserts

GelEx (22.06.17)PCREx (27.06.17)component
9.1 ng/µl 11.0 ng/µl olG17_112
4.5 ng/µl 5.7 ng/µl olG17_113
8.9 ng/µl 5.6 ng/µl olG17_114
11.3 ng/µl 7.9 ng/µl olG17_115
5.9 ng/µl 6.3 ng/µl olG17_116

All 10 samples were digested completely.

volumecomponent
25 µl PCR-Fragments
0.5 µl 10x CutSmart
0.25 µl XhoI
0.25 µl EcoRI
19.5 µl H2O

Digest was performed for 3 h at 37°C.
Inactivation took 20 min at 65°C.
Fragments were separated using gel electrophoresis (2% agarose, 120 V, 30 min).
The digested fragments were not visible in the gel, the phosphorylated backbone smeared (Picture: IM.000500.Tif). Only the non-dephosphorylated was backbone cut out and extracted from gel using a manufacturer's protocol.

Midiprep Cas9-GFP sgRNA3(c6)/scramble(c4)

Midiprep was performed according to manufacturer's protocol to obtain plasmids for electroporation from sequenced colonies (150 µg).

Site-directed mutagenesis PCR CAS9-GFP sgRNA3 & sgRNA20

PCR was performed with Q5 Master Mix for sgRNA3 and self-mixed solution for sgRNA 20.

11.07.17

PCR of 97meres for knockdown inserts

volumecomponent
10 µl 5x Q5 buffer
1 µl dNTPs (10 mM)
2.5 µl 5'mirEXhoIfwd (10 µM)
2.5 µl 3'mirEEcoRIrev (10 µM)
2 µl 97mere template (0.01 ng/µl)
0.5 µl Q5 Pol
31.5 µl H2O

Templates: 0lG17_112 to olG17_116

steptemperatureduration
1 98°C 1 min
2 98°C 10 sec
3 66°C 30 sec
4 72°C 20 sec
5 72°C 2 min
6 8°C

Steps 2 to 4 were repeated 33x.
Expected product of 144 bp was observed (picture no. IM000506.Tif) and extracted from gel with Qiagen PCR extraction kit according to manufacturer's protocol and eluted in 30 µl H2O.

volumecomponent
5 µl 10x CutSmart buffer
0.25 µl XhoI
0.25 µl EcoRI
4.5 µl H2O
40 µl template

Previously eluted product was digested for 3 h at 37°C (10 µ from each PCR run were mixed, for each of the 5 templates). Fragments were separated using gel electrophoresis (2% agarose gel, 120 V, 20 min) but gel was empty apart from ladder (picture no. IM000504.Tif).

Troubleshooting showed that PCR extraction had not been successful (gel 120 V, 20 min, picture IM000510.Tif).

Digest SGEN backbone of Gibson colonies 7 and 2

volumecomponent
6.3 µl SGEN plasmid (5 µg)
2 µl CutSmart buffer
1 µl EcoRI
1 µl XhoI
9.7 µl H2O

Digest was performed for 2 h at 37 °C.
Fragments were separated using gel electrophoresis (picture no. IM000502.Tif) and extracted with qiagen gel extraction kit according to manufacturer's protocol.

12.07.17

Overnight cultures of KO-Kit plasmids and lenti-Cas9

Overnight cultures of KO-Kit 101, 104, 203, lenti-Cas9 for minipreps and midipreps were prepared (13.07./14.07.).

Gels for checking purified knockdown insert DNA

No DNA was visible on gel since concentrations were too low (pictures no. IM000512.Tif and IM000514.Tif).

Purification, restriction digest and ligation of knockdown insert PCR products

Purification of PCR products of all 5 PCRs (picture IM000520.Tif) was performed using Qiagen gel extraction kit according to manufacturer's protocol. Samples washed twice with PE buffer show better curve on nanodrop.

Restriction digest of purified samples (samples from gel using 20x blue loading dye)

volumecomponent
17 µl purified DNA
2 µl 10x CutSmart buffer
0.5 µl EcoRI
0.5 µl XhoI

2h at 37°C
Fragments were purified using Qiagen purification kit according to maufacturer's protocol.

ligation

volumecomponent
0.7 µl digested backbone (50 ng)
x µl digested insert (2,415 ng)
1 µl T4 ligase buffer
1 µl T4 ligase
7.3-x µ H2O

Gel extraction of sgRNA3 inserted by SDM PCR into CAS9-GFP

Site-directed mutagenesis PCR of sgRNA20 into Cas9-GFP was repeated and failed.
2 overnight cultures of Cas9-GFP-sgRNA5 were prepared in order to obtain DNA for electroporation. Electrophoresis on agarose of miniprepped coloniees confirm that CutSmart was contaminated with DNAse but not the DNA samples (clear bands were observed as expected).

13.07.17

Sequencing sgRNAs in Cas9-GFP

DNA from colonies of original trafo with CAS9-GFP sgRNAs 1, 4 and 9, which were not yet sequenced or where sequencing hat previously failed, were send to sequencing.
Minipreps(2x) of sgRNA5 in Cas9-GFP were performed according to manufacturer's protocol for 2 electroporations

Heat shock with ligated knockdown plasmids

XL10gold bacteria were transformed with ligation sample (5 µl) following the heat shock protocol (5 plates containing plasmids based on olG17_112, olG17_113, olG17_114, olG17_115, olG17_116) Heat shock failed (bacteria were previously stored overnight at -20°C instead of -80°C, only 40 µl bacteria solution available per heat shock).

15.07.17

Overnight culture of XL10gold

An overnight culture of XL10 gold was prepared using 4 ml LB.

16.07.17

overnight culture of XL10gold

Overnight culture of XL10gold was enlagred to 50 ml LB.
ZymoBroth start: 20:00-9:30

17.07.17

Culturing XL10gold

Start value OD600 = 0.079
Using 1:10 dilution –> OD600 = 0.79

Digest Cas9-GFP

volumecomponents
0.5 µl Cas9-GFP (1.1 µg/µl, 11.06.17)
0.25 µl EcoRI
0.25 µl NotI
1 µl CutSmart
8 µl H2O

Expected fragments: 3300 bp, 60000 bp (picture no. 529)
Fragments were observed and 3.3 kb fragment was excised for extraction.

Heatshock transformation of knockdown ligations and lenti-CAS9

Transformation with knockdown ligations 112, 113, 114, 115, 116 and lenti-Cas9 1516 were performed according to heatshock protocol.

Gel purification protocol

  • add 450 µl QG buffer, 50-60°C for 10 min
  • add 150 µl isopropanol and mix
  • 10 min at -20°C
  • load on column
  • spin for 1 min at full speed and remove flow through
  • wash with 750 µl PE buffer
  • spin for 1 min at full speed and remove flow through
  • spin 2 min at full speed and remove flow through
  • elute DNA in 30 µl H2O

19.07.17

Ligation of sgRNA3 in Cas9-GFP SDM PCR product

volumecomponent
4 µl 8 gn/µl PCR product
4 µl H2O
1 µl T4 ligase
1 µl ligase buffer 10x

3 samples 2 h at 16°C
3 samples 1 h at 16°C
DpnI digest (4 µl of each ligation) and heat shock frafo in XL10gold

Minipreps of picked knockdown cultures

Minipreps of knockdown plasmids 112, 113, 114, 115, 116 were performed according to manufacturer's protocol and send for sequencing.

20.07.17

Picking colonies of CAS9-GFP sgRNA3

One colony of each plate of CAS9-GFP sgRNA3 was picked for prep, glycerol stock and digest. Plates were stored at 4°C to pick further colonies (re-plate tomorrow).

21.07.17

Extraction of genomic DNA from HEK293T cells

Genomic DNA was extracted from HEK293T cells according to kit protocol for T7E1 assay establishment.

Positive knockdown colonies

Positive colonies of 114, 115, 116 (SGEN) were recultured and new colonies of 112, and 113 were picked.

Miniprep of lenti-CAS9 colonies

A miniprep of 5 lenti-CAS colonies was performed according to manufacturer's protocol.

lenti-Cas9 test digest with NcoI-HF was performed at 37°C.

volumecomponent
2 µl DNA
0.25 µl NcoI-HF
1 µl 10x CutSmart
6.75 µl H2O

picture no. 534

Digest of lenti-Cas9 was performed using BsmbI.

volumecomponent
2.5 µl plasmid (500 ng/µl)
5 µl fast digest buffer
1 µl BsmBI
41.5 µ H2O

picture no. 534

Miniprep of new picked knockdown colonies

Miniprep was performed of knockdown colonies 112 and 113 according to manufacturer's protocol.

24.07.17

Digest of lenti-Cas9

volumecomponent
6 µl plasmid (279.5 ng/µl)
5 µl fast digest buffer 10x
1 µl BsmBI
38 µl H2O

Site directed mutagenesis PCR

Site directed mutagenesis PCR was perfored to obtain BsmBI and BbsI restriction sites in Cas9-GFP and BbsI in Lenti-Cas9-puro. Two fragments were generated for each insertion.

Fragment 1 2
PlasmidRestriction siteprimerssizeprimerssize
GFP BsmBI 212/215 3 kb 216/218 3.7 kb
GFP BbsI 212/214 3 kb 216/218 3.7 kb
lenti BbsI 213/214 1 kb 216/217 2.9 kb

The observed fragment pattern was observed ladder was not visible on gel. Fragments were excited anyway and PCR was repeated on 25.07.17.

25.07.17

Gel extraction, digest and ligation of lenti-Cas9

lenti-CAS9 fragments were extracted from gel and digested using BsmBI.

volumecomponent
6 µl plasmid
5 µl FD 10x B.
1 µl BsmBI
38 µl H2O

Picture no. 543

Fragments of lenti-Cas9 were ligated.

volumecomponent
5 µl backbone (15.9 ng/µl)
1 µl sgRNA1, 3, 4 (50 nM)
1 µl T4 buffer
1 µl T4
2 µl H2O

T7E1 assay

NEB 2 puffer 1x and 1.5 µl T7 were added to 200 ng of PCR products (of positive control, exon 6, exon 5, exon 8, exon 10). Assay was cooled down in 2.5 h from 95°C to 20°C.

Miniprep of SGEN 115 and lenti-Cas9 plasmids

Minipreps were performed according to manufacturer's protocol.

26.07.17

Picking colonies for lenti-Cas9

Colonies containing sgRNA1, 3, 4, 5, 9 in lenti-CAS9 were picked.

Digest of lenti-Cas9 with BsmBI

volumecomponent
3 µl plasmid
2.5 µl FD buffer
0.5 µl BsmBI
19 µl H2O

picture no. 547

SDM PCR BsmBI and BbsI into Cas9-GFP and lenti-Cas9-puro

Site-directed mutagenesis was performed as previously to insert BsmBI and BbsI into Cas9-GFP. PCR fragments were excised from gel and purified using a clear-up kit according to manufacturer's protocol. Fragments were digested with BsmBI or BbsI and NotI or EcoRI and purified using a PCR clear-up kit.
Cas9-GFP and lenti-Cas9-puro were digested with NotI and EcoRI in FD 10x.
picutres no. 539 and 538

27.07.17

Site directed mutagenesis PCR

Strategy was changed because strategy with shorter fragments for each side combined with NotI and EcoRI did not work (produced blunt-ends). Now a whole plasmid amplification was performed to insert BsmBI and BbsI into Cas9-GFP (run on 0.9% agarose at 110 V for 35 min, picture no. IMG00550). Protocols as for oroginal blunt end ligation estrategy, expected band of 9.3 kb was at 10 kb with good efficiency, also a 3 kb band was observed and both were extracted.

Digest with BsmBI or BbsI

volumecomponent
0.5 µl BsmBI
fermentas FD 10x
1 µl DpnI
H2O

Digest was performed for 20 min at 37 °C and 1 h at 55°C.

volumecomponent
1 µl BbsI
fermentas FD 10x
1 µl DpnI
H2O

Digest was performed for 2 h at 37°C.

Oligo ligation of sgRNA5 with T4 was performed for 1 h and XL10gold were transformed according to heat shock protocol. Colonies were also found in BbsI (maybe confused) and BsmpI (DpnI might need longer).

Miniprep of Lenti-Cas9

Minipreps of plasmids containing sgRNA1, 3, 4, 5, 9 were performed according to manufacturer's protocol and send for sequencing.

28.07.17

Gelex of digested lenti-CAS9 and ligation of lenti-Cas sgRNA20

volumecomponent
7 µl plasmid
1 µl sgRNA (50 ng/µl)
1 µl T4 ligase buffer
1 µl T4 ligase

PCR for T7E1

PCR for T7E1 was performed to identify knockout in HEK cells as previously described. PCR purification was performed of HEK both primers and exon 8.

30.07.17

PCR for T7E1 assay

Positive control: CCR5delta32 mutation in HEK293T (olG17_073/074).
Negative sample: HIF1A exon 8.

volumecomponent
x µl gDNA (300ng)
5 µl 5x phusion HF buffer
0.5 µl dNTPs
1 µl fwd
1 µl rev
0.25 µl phusion
17.25-x µl H2O

(original protocol: 200 ng gDNA)
Better use 0.5 µl primers for 25 µl reactions.
Electrophoresis was performed on 2% agarose gel (100 V for 45 min).
Expected bands: 500 bp

PCR HEK positive control 73,74 test

volumecomponent
8 µl H2O
12,5 µl kappa2G
1.25 µl primer 73
1.25 µl primer 74

31.07.17

Sequencing of Cas9-GFP sgRNAs

Cas9-GFP sgRNAs1, 3, 4, 9, 20 from SDM PCR restriction site insertion, BsmBI or BbsI and DpnI digested and dsDNA oligoinsertion were send to sequencing.

PCR purification of T7E1 samples

T7E1 dsDNA samples obtained on 30.07.17 were dissociated and re-annealed in NEB 2 buffer 1x at 95°C for 5 min and for 2:30 h slowly cooled down to room temperature in heatblock.

T7E1 assay

200 ng PCR product were re-annealed using 1.5 µl 1:1 of T7E1 and and 2x NEB 2 buffer at 37°C for less than 20 min. Reaction was stopped by addition of 3 µl 6x OrangeDye, the samples were put on ice immediately and quickly loaded on 2% agarose gel.
Expected fragments: 200 bp, 300 bp, could not be observed.

01.08.17

Knockout Sequencing

Cas9-GFP sgRNAs from 31.07.17, only positive for BsmBI samples
repeat of SDM PCR with Q5 to insert BsmBI sites into Cas9-GFP
sequencing of other colonies for sgRNAs 4, 9 inserted by BsmBI, overnight cultures for miniprep

T7E1 assay repeat troubleshooting

  • use more DNA
  • anneal longer than 3 h
  • T7 less than 15 min

T7E1 PCR

2x at 63°C, no good result on first gel

02.08.17

Miniprep of Cas9-GFP sgRNA4/9

2 more colonies for each BsmBI cloning (27.07.17) because sequencing was negative
picking 3 colonies from BsmBI cloning (01.08.17) for sgRNAs3/20 in Cas9-GFP, other plates stored
control transformation yielded no colonies this time, maybe because of longer digestion with DpnI
5 ml overnight cultures (2x each)

  • lenti-Cas9-puro sgRNas 1 / 3 / 4 at 37°C
  • SGEN shRNA 4 (former 115, now 133) and shRNA 5 (former 116, now 134) at 30°C

T7E1 PCR

PCR at 60°C worked with HEK but not wich Ex8.
PCR purification HEK (30 ng) and Ex8 (15 ng).

Standard PCR protocol HEK 73/74

volumecomponent
0.5 µl DNA (200 ng)
5 µl phusion 5x buffer
0.5 µl dNTPs
0.5 µl fwd
0.5 µl rev
0.25 µl phusion
17.75 µl H2O

03.08.17

T7E1 annealing

HEK CCR6 PCR product, 1 h,2 h, and 6 h at 37°C, no negative control
T7E1 incubation for 29°C at 37°C

Minipreps and Glycerol stocks

low yield minipreps
sgRNA1, 3, 4 in Lenti-Cas9
sgRNA3, 20 in Cas9-GFP
sgRNA1 in Cas9-GFP
new overnight cultures 9 ml Cas9-GFP sgRNA1, 4, 5, 2 colonies of Cas9
miniprep (promega) of lenti-Cas9 colonies

04.08.17

PCR on gDNA for T7

New primers for exon 9, 10 in Hif1A improved PCR, old primers for exon 6, 8 worked fine. Annealing at 60°C annealing lead to weak band for exon 6. No bands were observed for CCR5delta 32 in HEK (bad gDNA was used, now thrown away). Experiment for CCRDdelta32 was repeated with good gDNA(59°C annealing) to obtain new samples.

PCR on gDNA of Jurkat cells with KO-Kit primers

volume component
0.2 µl 1.8 µl Taq
1.5 µl 13.5 µl buffer
1 µl 9 µl template
0.3 µl 2.7 µl dNTPs
0.75 µl 6.75 µl fw
0.75 µl 6.75 µl rv
10.5 µl 95.5 µl H2O

PCR gDNA in was annealed in thermocycler.

  • 95-85°C at 2°C/min
  • 85-25°C at 0.05°C/min

T7E1 endonuclease assay

In Jurkat cells 200 ng gDNA were annealed (HIF1A 1.5 µl 1:1 T7:NEB2 2x, exon 6). No control was used.
In HEK293T cells 200 ng gDNA were annealed (CCR5delta32 1.5, 2, 2.5, 3, 4 used 1:1 T7:NEB2). Control was used.
Annealing was performed at 37°C for 25 min.

Minipreps Cas9-GFP

Minipreps of Cas9-GFP sgRNA1, 4, 5 were performed for electroporation according to manufacturer's protocol.

05.08.17

T7E1 annealing

HEK

volumecomponent
4 µl DNA (200ng)
0.75 µl T7
0.75 µl NEB2 2x
8 µl NEB2 1x

Positive control

volumecomponent
4 µl gDNA (58 ng/µl)
0.75 µl T7
0.75 µl NEB2 2x
8 µl NEB2 1x

Negative control

volumecomponent
4 µl gDNA exon 5 (25 ng/µl)
0.75 µl T7
0.75 µl NEB2 2x
8 µl NEB2 1x

Gel at 95V for 50 min.

PCR KO-Kit confirm

PCR was performed to confirm knockout.

volumecomponent
0.2 µl taq
2 µl template
1.5 µl 10x buffer
0.3 µl dNTPs
0.75 µl fw (32)
0.75 µl rv (59)
9.5 µl H2O

Glycerol stocks Cas9-GFP

Cas9-GFP BsmbI

  • sgRNA20 colonies 4, 5 and 6
  • sgRNA3 colonies 4, 5 and 6

Test digest of SGEN112_2_1 and SGEN 112_2_2

volumecomponent
2 µl DNA
1 µl 10x FD
0.5 µl NotI
6.5 µl H2O

Digest was performed at 37°C for 1 h.
Picture in labbook\

Minipreps of Cas9-GFP sgRNA3 and sgRNA20

3 more colonies for Cas9-GFP sgRNA3 and sgRNA20 were sent for sequencing.
Overnight cultures (5 ml LLB-Amp)

  • for electroporation lenti-Cas9-puro sequenced sgRNAs1-9
  • for cloning constitutively active (CCa) HIF1A as western blot positive contro, 1x HA-HIF1A from plate

07.08.17

Minipreps of 101 and 104

Minipreps were performed according to manufacturer's protocol.

Positive sequencing result for Cas9-GFP-sgRNA9

Colony 4 of Cas9-GFP-sgRNA9 was positive. Cas9-GFP sgRNA3 and sgRNA20 were send for sequencing (3 colonies each).

08.08.17

Miniprep of KO-Kit

Miniprep of plasmids 101, 104, 203 was performed according to manufacturer's protocol.

Positive sequencing and picking colonies

Sequencing was positive for Cas9-GFP sgRNa3 (colony 5). 4 new colonies of Cas9-GFP sgRNA20 were picked (LB-Amp 5ml overnight cultures). Cultures of Cas9-GFP sgRNA3, sgRNA9 for preps for electroporation and SGEN shRNA112 for lentisviral transduction.

T7E1 assay

T7E1 assay was performed.

  • PCR 4x HEK293T CCR5delta32 positive control

  • PCR 1x each of Jurkat HIF1A exons 5, 6, 8, 10 negative control
  • PCR clearup from 2% agarose gel (Qiagen kit)
  • annealing at 95-85% 2°C/sec, 85-25°C 1% ramps(approx. 0.6°C/sec)
  • assay 12 µl DNA + 1.5 µl 1xNEB2

Tested conditions

+ T7E1 no T7E1
pos. ctrl. pos. ctrl. pos. ctrl. pos. ctrl. pos. ctrl. pos. ctrl. pos. ctrl. neg. ctrl. pos. ctrl. neg. ctrl.
Method Cycler Cycler Block Water Cycler Cycler Cycler Cycler room temp room temp.
Amount DNA 200 200 200 200 200 300 400 200 200 200
Duration 10 15 20 20 20 20 20 20 20 20

KO-Confirm PCR with primers 228 and 229

PCR was performed on plasmid 104 and gDNA to confirm knockout.

volumecomponent
2 µl template
1.5 µl 10x buffer
0.3 µl dNTPs
0.75 µl primer fw
0.75 µl primer rv
0.2 µl Taq
9.5 µl H2O

Program koconfirm (but here at 64°C)

steptemperature (°C)time
1 95 3:00
2 95 0:30
3 59 0:30
4 72 0:40
5 72 7:00
6 4 pause

Steps 2 to 4 were repeated 30x.

Picture no. 614 lower line

T7E1 assay for CCR5delta32 positive control

volumecomponent
5.5 µl CCR5delta32 DNA (209 ng)
12.5 µl H2O
2 µl NEB10x

10.08.17

PCR for T7 assay, annealing and T7 incubation

Experiment failed.

Mycoplasm PCR

volumevolumecomponent
2 µl template
1.5 µl 13.5 µl 10x Y Buffer
0.3 µl 2.7 µl dNTPs
1 µl 9 µl primer fw
1 µl 9 µl primer rv
0.2 µl 1.8 µl Taq
9 µl 81 µl H2O

Program: myco

steptemperature (°C)time
1 95 5:00
2 95 0:40
3 60 0:40
4 72 0:40
5 72 5:00
6 4 pause

Steps 2 to 4 were repeated 30x.

Picture no. 621

11.08.17

KO-confirm primer 228 and 229

To confirm knockout a PCR was performed.

volumevolumecomponent
2 µl template
1.5 µl 7.5 µl 10x buffer
0.5 µl 2.5 µl dNTPs
0.75 µl 3.75 µl primer fw
0.75 µl 3.75 µl primer rv
0.2 µl Taq
9.3 µl 46.5 µl H2O

PCR for T7E1 assay

PCR was performed as previously described (double volume 50 µl).

volumecomponent
1 µl gDNA
10 µl 5x buffer
1.5 µl dNTPs (10µM)
1.25 µl primer fw
1.25 µl primer rv
0.5 µl phusion

Test digest HIF pcDNA3

volumecomponent
5 µl DNA HIF pcDNA3
1 µl CutSmart buffer
1 µl XhoI
3 µl H2O

Test digest was performed for 1 hour at 37°C (was accidentally thrown away).

Test digest of lenti-Cas9-sgRNA20 and knockdown plamsids

lenti-Cas9-sgRNA20 and knockdown SGEN112_2.1 and SGEN112_2.2 were test digested.

volumecomponent
1 µl BamHI
2 µl Plasmid
1.5 µl FD buffer
10.5 µl H2O

Lenti-Cas9

volumecomponent
1 µl NcoI
2 µl plasmid
1.5 µl FD buffer
10.5 µl H2O

T7E1 assay

50µl PCR samples (from 11.08.17) were annealed for longer than 3 h in heatblock, then 10 min at 95°C and cooled down in block. 400 ng/sample PCR product were obtained (reaction mix as previously; time: 18, 20, 22 min T7E1 at 37°C, stop with 3 µl 6x Orange Loading Dy on ice. Jurkat HIF1A exon 5 from PCR on 08.08.17 served as negative control and was incubated for 20 min with T7. 2% EtBR gel was used. Expected bands at 200 bp and 300 bp were observed in all three CCR5delta32 samples with T7.

13.08.17

KO-confirm primer 228 and 229

volumevolumecomponent
2 µl template
1.5 µl 7.5 10x buffer
1 µl 5 µl dNTPs
1 µl 5 µl primer fw
1 µl 5 µl primer rv
0.2 µl Taq
8.2 µl 41 µl H2O

program: koconfirm
picture no. 633

Retrafo of sgRNA20_4

volumecomponent
2 µl template (1:1 genomic:plasmid)
1.5 µl buffer 10x
1 µl dNTPs
1 µl primer fw
1 µl primer rv
0.2 µl Taq
8.3 µl H2O

Program: PCR kitKOconfirm

steptemperature (°C)time
1 94 5:00
2 94 0:40
3 60 0:40
4 72 4:00
5 72 5:00
6 4 pause

Steps 2 to 4 were repeated 35x.

14.08.17

PCR KO-Kit confirm (TAq and Q5)

A PCR was performed to confirm knockout.

volumecomponent
2 µl template gDNA
1.5 µl buffer 10x
1 µl dNTPs
1 µl primer fw 32
1 µl primer rv 60
0.5 µl Taq Q5
7.5 µl H2O

Program: kokit3primers

steptemperature (°C)time
1 95.0 2:00
2 95.0 0:30
3 55.5 0:40
4 72.0 2:00
5 72.0 5:00
6 4.0 pause

Steps 2 to 4 were repeated 35x.

Product ~1.6 kb at 54.5°C, ET 1.5 min
Picture no. 642

Gibson HIF1A

  • Insert HIF1A 20 ng/µl, 520 bp
  • Backbone pcDNA3 8 ng/µl, 7464 bp
  • Insert:backbone 4:1
volumecomponent
10 µl 2x gibson
9 µl backbone
1 µl insert

Assembly was performed for 1 h at 50°C.

XL10gold were transformed using heat shock protocol (06.05.17).

15.08.17

PCR KO-Kit confirm 3 primers

A PCR was performed to confirm knockout.

volumecomponent
2 µl template gDNA
1.5 µl buffer 10x
1 µl dNTPs
1 µl primer fw 32
1 µl primer rv 60
0.3 µl Taq (Q5)
7.7 µl H2O

Program: kokit confirm 3 primers
at 34,5°C, elongation time 1.5 min
picture no. 648

volumecomponent
2 µl template gDNA
1.5 µl buffer 10x
1 µl dNTPs
1 µl primer fw 32
1 µl primer rv 60
0.5 µl Taq (Q5)
7.5 µl H2O

Program: kokit confirm 3 primers
at 49°C, elongation time 2 min
Picture no. 648

Miniprep of Lenti-Cas sgRNA20_4 and test digest with EcoRI and BamHI

Miniprep was performed according to manufacturer's protocol.

volumecomponent
2 µl DNA
0.75 µl EcoRI
0.75 µl BamHI
1.5 µl 10x FD
5 µl H2O

PCR CaHIF1A

Protocol 13.08.17
only backbone, 1 µl dNTPs instead

16.08.17

PCR KO-Kit

gDNA101 template was diluted 1:10 diluted.

Primers 228 and 229

volumecomponent
1 µl template
2 µl buffer
1 µl primer fw
1 µl primer rev
1 µl dNTPs
0.5 µl Taq (Q5)
13.5 H2O

Primers 32 and 60

volumecomponent
1 µl template
2 µl buffer
1 µl primer fw
1 µl primer rev
1 µl dNTPs
0.5 µl Taq (Q5)
13.5 H2O

Picture no. 654

PCR on CaHIF1a gel, gelex, gibson and trafo

Performed as described previously.

Preparation of buffers for electrophoresis

  • Stacking gel stock: Tris-HCL 1 M pH 6.8
  • Separation gel stock: Tris-HCL 1.5 M pH 8.8
  • WB running buffer 10x: Tris 0.5 M, 0.1% SDS, glycin 1 M, HCl –> pH 8.3
  • 10x Lämmli running buffer (1 l): 30 g tris, 10 g SDS, 144 g glycin

Protein extraction from HEK

HRE-SEAP and CoCl2 treated cells were lysed to extract proteins (12 well plate triplicates, WT, 0µM / 200 µM / 500 µM CoCl2).

Protocol cell lysis

  • on ice 2x washing in PBS (remove by 2 min, 100xg) with 100µM CoCl2 for CoCl2 cells
  • 150 µl RIPA buffer, 0.1% proteinase inhibitor cocktail with 100µM CoCl2 for CoCl2 cells
  • 5 min ultrasound
  • 20 min 20,000xg, 4°C –> take supernatant (pellet stored for control)

SDS-PAGE

Protocol SDS-PAGE

  • 8% acrylamid gel
  • 4.5% stacking gel
  • heat samples 10 min 96°C in loading dye
  • 1x Lämmli running buffer
  • run at 80 V until end of stacking gel
  • 150 V for rest of run (until blue loading dye elutes)

Western Blot

Protocol Western Blot

  • assemble in running buffer
  • incubate/soak gel, whatman papers, sponges in running buffer
  • activate PVDF membrane in 100% methanol for 1 min, then wash MeOH off with running buffer
  • assembly: sponge, whatman paper, PVDF membrane, gel, whatman paper, sponge (every step flatten stack by rolling out from centre to outside)
  • run 10-12 h const. 20mAmp (also possible: 1:35 h 44 Amp/45 V)

17.07.17

Colonies picked from CaHIF1A cloning

2 colonies were picked.

18.08.17

CaHif1A miniprep, test digest and glycerol stocks

Miniprep was performed on overnight cultures CaHIF1A C1 and C2 according to manufacturer's protocol (zymo).

C1 test digest (see 11.08.17)

volumecomponent
1.2 µl plasmid (745 ng/µl)
1 µl CutSmart
1 µl XhoI
6.8 µl H2O

C2 test digest

volumecomponent
3 µl plasmid (372 ng/µl)
1 µl CutSmart
1 µl XhoI
5 µl H2O

Glycerol stocks of CaHif1A were produced.

20.08.17

KO-Kit confirm PCR

To confirm knockout a PCR was performed.

Mix 1

volumevolumecomponent
1 µl template
1.5 µl 13.5 µl buffer 10x
1 µl 9 µl primer 228
1 µl 9 µl primer 229
1 µl 9 µl dNTPs
0.5 µl 4.5 µl Taq Q5
9 µl 81 µl H2O

Mix 2

volumevolumecomponent
1 µl 9 µl template
1.5 µl 13.5 µl buffer 10x
1 µl 9 µl primer 60
1 µl 9 µl primer 32
1 µl 9 µl dNTPs
0.5 µl 4.5 µl Taq Q5
9 µl 81 µl H2O

Picture in lab book.

Cell lysis of JK cells

Lysis of JK cells was performed according to protocol.

21.08.17

SDS-PAGE and Western blot

SDS-PAGE were ran for ~ 2 h, Western blots overnight (const. 20 mA, 4°C).

22.08.17

Blocking Western blots

Blots were blocked for ~ 6 h, then stored at 4 °C (picture in lab book).

Generated BSA standard in TBS-T

BSA concentrationNo.lambdaAbsorbance
0 µg/ml 2 620nm 0.005A
0 µg/ml 2 620nm 0.007A
0 µg/ml 2 620nm 0.007A
5 µg/ml 3 620nm 0.140A
5 µg/ml 3 620nm 0.161A
5 µg/ml 3 620nm 0.115A
10 µg/ml 3 620nm 0.275A
10 µg/ml 3 620nm 0.284A
10 µg/ml 3 620nm 0.271A
20 µg/ml 3 620nm 0.581A
15 µg/ml 3 620nm 0.435A
15 µg/ml 3 620nm 0.429A
15 µg/ml 3 620nm 0.430A
20 µg/ml 3 620nm 0.545A
20 µg/ml 3 620nm 0.574A
30 µg/ml 3 620nm 0.830A
30 µg/ml 3 620nm 0.886A
30 µg/ml 3 620nm 0.887A

24.08.17

SDS-PAGE

Protein concentration was determined using amido black stain. 10 µg protein for each sample were was loaded on gel (problem with CoCl2 treated sample: not able to load appropriate volume). Blotting occurred over night at 4 °C (20 mA, 12 h). Membrane was blocked with 5% milk powder in TBST for 2.5 h.

cell line JK JK JK JK HEK
CoCl2 (µM) 0 200 400 800 500

26.08.17

lenti-Cas9-puro all RNAs electroporation

All RNA coding lenti-Cas9-puro were electroporated into Jurkat using CAS9-GFP RNAscramble as transfection control.
Protocol from cell culture was used:

  • 2×10^6 cells and 9 µg DNA were resuspended in 200 µl 3P buffer
  • put in cuvettes and electroporated
  • 500 µl RPMI were added
  • plated on 12 well plate, filled to 2 ml with RPMI

Puromycin toxicity assay

HEK cells were transfected with lenti-Cas9-puro RNA5 old cloning and SGEN as transfection control using PEI (1x10cm dish at ~50% confluency). 1 ml serum, phenol red free DMEM and 10 µg DNA were vortexed. 30 µl PEI (1µg/ml) were added and vortexed carefully. After 15 min PEI/DNA was added evenly to dish.

31.08.17

SDS-PAGE

Protein amount was determined using amido black stain. 10 µg protein for each sample were loaded. SDS-Page took ~ 2 h and blotting 2 h at 250 mA. Membranes were blocked overnight at 4°C. No results could be observed.

Cell line HEK HEK HEK JK JK JK JK
CoCl2 (µM) 0 200 500 0 400 200 800

03.09.17

SDS-PAGE with new samples

Treating blots made on 31.08.17 with new ECL showed no results. Western blots were repeated but without success.

10.09.17

Cell lysis and determining protein concentration

Cell lysis was performed according to protocol (6cm dish JK with 150 µl RIPA, 6 well HEK in 250 µl RIPA). Protein concentration was determined using amido black stain.

11.09.17

SDS-PAGE and Western Blot

10 µg protein for each sample were loaded on gel for SDS-PAGE (0.02 A in stacking-gel, 0.05 A in running-gel). Blotting was performed at 250mA for 2 h. Blocking occured at room temperature for 2 h in 5% milk-TBS-T. Blots were incubated with primary antibodies overnight (anti-HIF1A, anti-GAPDH).

cell line JK JK JK JK HEK HEK HEK HEK HEK
CoCl2 (µM) 0 200 400 800 0 200 400 600 800

12.09.17

Washing blots

Blots were washed with TBS-T 3x10min and incubated with 1:10,000 secondary antibody for 1 h (anti-mouse HRp –> HIF1A; anti-rabbit HRP –> GAPDH).

14.09.17

Lysis of JK cells and determining protein concentration

JK cells were induced with CoCl2 24 h before lysis. Lysis was performed in 150 µl RIPA and 100 µM CoCl2. Protein concentration was determined with amido black stain.

15.09.17

SDS-Gel for JK

Samples were collected one day prior to running the gel. Lysis was performed according to protocol. Amido black stain was used to determine protein amount. Proteins were blotted for 2 h at 250 mA. The mambrane was blocked for 2 h at room temperature.

cell line ladder JK JK JK JK JK JK
CoCl2 (µM) 0 20 40 80 160 200

17.09.17

SDS-PAGE

Gel performed according to protocol. Western blot was performed for 2 h at 250 mA. Protein amount was determined using amido black stain. Blots were blocked for 2 h at room temperature and primary antibody was added over night.

cell line ladder HEK:133 HEK:133 HEK:133 HEK:133 HEK:WT HEK:WT HEK:WT
CoCl2 (µM) 0 200 400 600 0 400 600

cell line ladder HEK:134 HEK:134 HEK:134 HEK:134 HEK:WT HEK:WT HEK:WT
CoCl2 (µM) 0 200 400 600 0 400 600

18.09.17

SDS-PAGE and Western Blot

SDS-PAGE and Western Blot were performed according to protocol

cell line ladder JK:133 JK:133 JK:133 JK:133 JK:WT JK:WT JK:WT JK:WT HEK
CoCl2 (µM) 0 80 160 200 0 80 160 200 600
cell line ladder HEK JK:133 JK:133 JK:133 JK:133 JK:WT JK:WT JK:WT JK:WT
CoCl2 (µM) 600 0 80 160 200 0 80 160 200

20.09.17

Electroporation of 5 gRNAs into Jurkat

Electroporation of 5 gRNAs into Jurkat cells was performed according to protocol. GFP marker was used for sorting.

21.09.17

Electroporation of 5 gRNAs into Jurkat

Electroporation of 5 gRNAs into Jurkat cells was repeated. GFP marker was used for sorting.

SDS-PAGE and Western Blot

SDS-PAGE and Western Blot were performed according to protocol.

cell line ladder HEK:WT HEK:WT HEK:WT HEK:133 HEK:133 HEK:133 HEK:133
CoCl2 (µM) 0 400 600 0 200 400 600

cell line ladder HEK:WT HEK:WT HEK:WT HEK:134 HEK:134 HEK:134 HEK:134
CoCl2 (µM) 0 400 600 0 200 400 600

22.09.17

Sorting GFP-positive cells of pooled electroporations

GFP-positive cells of pooled electroporations were sorted. Negative control was not mock electroporated and cound not be used for gating, hence data were gated based on samples. Single cells were seeded in 96-well plates into 50 µl mycoplasm clearance medium. Microscopy was used to check for presence of cells.

23.09.17

SDS-PAGE and Western Blot

Samples were collected one day prior to SDS-PAGE gel. Protein amount was determined by amido black stain. SDS-PAGE and Western Blot were performed according to protocol (2 gels).

cell line ladder JK:WT JK:WT JK:WT JK:WT JK:133 JK:133 JK:133 JK:133
CoCl2 (µM) 200 80 40 0 200 80 40 0

24.09.17

Adding medium to seeded single cell plates

100 µl conditioned RPMI was added to seeded single cell plates. In the following weeks regular check of clonal cultures and addition of conditioned RPMI if necessary.

SDS-PAGE and Western Blot

Samples were collected on 23.09.17. Protein amount was determined by amido black stain. Lysis of cells, SDS-PAGE and Western Blot were performed according to protocol.

cell line ladder HEK:WT HEK:WT HEK:WT HEK:133 HEK:133 HEK:133 HEK:133
CoCl2 (µM) 0 400 600 0 200 400 600

cell line ladder HEK:WT HEK:WT HEK:WT HEK:134 HEK:134 HEK:134 HEK:134
CoCl2 (µM) 0 400 600 0 200 400 600

29.09.17

SDS-PAGE and Western Blot

Experiments were performed according to protocol (see day before). CMV:HIF served as HA positive control.

anti-HA

cell line WT(HEK) WT(HEK) WT(HEK) WT(HEK) 133(HEK) 133(HEK) 133(HEK) 133(HEK)
CMV:HIF - - + + - - + +
CoCl2 (µM) 0 400 0 400 0 400 0 400
cell line WT(HEK) WT(HEK) WT(HEK) WT(HEK) 134(HEK) 134(HEK) 134(HEK) 134(HEK)
CMV:HIF - - + + - - + +
CoCl2 (µM) 0 400 0 400 0 400 0 400

anti-HIF1A

cell line WT(HEK) WT(HEK) WT(HEK) WT(HEK) 133(HEK) 133(HEK) 133(HEK) 133(HEK)
CMV:HIF - - + + - - + +
CoCl2 (µM) 0 400 0 400 0 400 0 400
cell line WT(HEK) WT(HEK) WT(HEK) WT(HEK) 134(HEK) 134(HEK) 134(HEK) 134(HEK)
CMV:HIF - - + + - - + +
CoCl2 (µM) 0 400 0 400 0 400 0 400

30.09.17

Sample preparation, SDS-PAGE and Western Blot

Sample preparation, SDS-PAGE and Western Blot as described earlier.

cell line treatment WT WT 134 134 134 134 ladder 134 + CRE + Forskolin 134 + CRE + TDAG, pH7.5 134 + CRE + TDAG, pH7.5
CMV:HIF - - - - + + - - -
CoCl2 (µM) 0 400 0 400 0 400 0 0 400
cell line treatment WT WT 134 134 134 134 ladder 134 + CRE + Forskolin 134 + CRE + TDAG, pH6.5 134 + CRE + TDAG, pH6.5
CMV:HIF - - - - + + - - -
CoCl2 (µM) 0 400 0 400 0 400 400 0 400

→ no results

04.10.17

Sample preparation, SDS-PAGE and Western Blot

Experiments were performed as described earlier.

cell line ladder WT WT WT WT 130 130 130 130
CoCl2 (µM) 0 200 400 600 0 200 400 600

05.10.17

Sample preparation, SDS-PAGE and Western Blot

Experiments were performed as described earlier.

cell line WT WT WT 130 130 130 ladder GFP positive
CoCl2 (µM) 0 100 200 0 100 200
cell line ladder WT WT WT WT 130 130 130 130
CoCl2 (µM) 0 100 150 200 0 100 150 200

→ no result

06.10.17

Sample preparation, SDS-PAGE and Western Blot

Experiments were performed as described earlier.

cell line ladder WT WT WT WT HRE HRE HRE HRE
CoCl2 (µM) 0 400 0 400 0 400 0 400
CMV:HIF - - + + - - + +

→ no results

07.10.17

T7E1 assay on puromycin selected non-clonal Jurkat HIF1A-KO

T7E1 assay was performed according to protocol. PCR for HEK CCRdelta32 positive control and WT/KOJK HIF1A exon 6 (KO1) and exon 5(KO3) were each performed twice. gDNA was extracted according to protocol in cell cluture lab book (16.05.17).

  • sgRNA1 vs. exon 6
  • sgRNA3 vs. exon 5
  • WT
  • 3/4 of semi-confluent 6 cm dish for each
volumecomponent
x gDNA (300-400 ng)
10 µl 5x buffer
1.5 µl dNTPs
1.25 µl each primer
0.5 µl Q5
35.5-x µl H2O

protocol HIF-KO confirmation
annealing at 59°C, 40 cycles

Very good concentrations were obtained by PCR clearup (Qiagen), no effect of template concentration on product was observed.

8.10.17

Annealing and T7 Assay

  • 500 ng per sample in 1x NEB2, each condition double amount annealed (for +/- T7)
  • HEKCCR5delta32 / JK KO1 pure / JK KO1:WT ex 6 1:1 / JK WT ex 6 pure / JK KO3 pure / JK KO3:WT ex 5 1:1 / JK WT ex 5 pure
  • sample volume adjusted to highest sample volume
  • 10 min 95°C in heatblock, closed with parafilm, passive cooldown in heatblock ~ 3 h

T7

  • 12 µl annealed DNA per sample mixed on ice with 1.5 µl of 1:1 mix T7E1 and NEB2 2x buffer
  • 20 min at 37°C in PCR cycler
  • stoped with 6x Orange loading dye on ice
  • loaded on 2% agarose EtBr gel with untreated control for each sample
  • run at 95 V for 50 min
  • positive control did not work
  • 500 ng per sample in 1x NEB2

11.10.17

Kryo stocks Cas9-puro gRNA1 and gRNA3

Kryo stocks of puromycin selected, non clonal Jurkat cells were generated according to protocol. From 1 confluent 6 cm dish cryostock was generated by storing cells in 1 ml containing 90% FBS and 10% DMSO. After 2 days at -80°C cells were stored in liquid nitrogen tank.

13.10.17

Sample preparation, SDS-PAGE and Western Blot

Experiments were performed as described earlier.

cell line Jurkat,WTHEK,WT
CoCl2[µM] 0 20 40 80 160 320 la0200400

cell line HEK, HREJurkat, HRE
CoCl2[µM] 0200400la 0 20 40 80 160 320

15.10.17

Transient AND-gate test

6-well plates of HEK KD134 cells were transfected using PEI to test AND-gate transiently.

PEI transfection protocol

  1. seed cell one day before transfection, cell density should be 70-80%
  2. PEI transfection
    1. mix 3 µg DNA in 100 µl serum-free medium
    2. mix 9 µg PEI in 100 µl serum-free medium
    3. incubate both tubes 10 min at room temperature
    4. add the PEI solution to DNA solution and mix, then incubate 15 min at RT
    5. remove medium from cells
    6. add 800 µl serum-free medium to DNA/PEI mixture and add to the cells
    7. incubate ~3 h at 37°C
    8. addd 2 ml culture medium to cells
  3. Change medium after 3-5 h

DNA: 1 µg per plasmid, 3 µg total in each transfection
PEI: 3:1 per DNA, i.e. 9 µg per transfection

KD134

CRE:HIFHRE:LUCpUC
400 µM CoCl2 pH7.7 pH7.1 pH6.1
400 µM CoCl2 pH7.7 + Forskulin + IBMX pH7.1 + Forskulin + IBMX pH6.1 + Forskulin + IBMX

KD134

CRE:HIF CMV:TDAG HRE:LUC CRE:HIF HRE:LUC SV40:TDAGCMV:HIF HRE:LUC pUC
0 µM CoCl2 pH6.5 + Forskulin + IBMX pH6.5 + Forskulin + IBMX
400 µM CoCl2 pH6.5 + Forskulin + IBMX pH6.5 + Forskulin + IBMX
0 µM CoCl2 HRE:Luc 1:2 pUC
400 µM CoCl2 HRE:Luc 1:2 pUC

WT

0 µM CoCl2 HRE:Luc 1:2 pUC
400 µM CoCl2 HRE:Luc 1:2 pUC

16.10.17

Induction of transient AND-gate test

AND-gate was induced 24 h after start of PEI by regulating pH and adding CoCl2 and Forskulin according to schemes above (Forskulin 1:1000 of 100 mM stock, IBMX 1:1000 of 100 mM stock).

17.10.17

Change of all media

All media were changed 12 h after induction, all conditions were added as before to achieve more constant pH induction.

18.10.17

SDS-PAGE

SDS-PAGE was performed as previously.

cell lineWTKD CRE:HIF, HRE:LUC, SV40:TDAG8
pH- 6.5 7.7 7.1 6.5 7.7 7.1 6.5 -
CoCl2 [µM]4000400400400400400400400
Ftl - + + + + - - --

cell lineWTKD CRE:HIF, HRE:LUC, CMV:TDAG8
pH- 6.5 7.7 7.1 6.5 7.7 7.1 6.5 -
CoCl2 [µM]4000400400400400400400400
Ftl - + + + + - - --

20.10.17

Sample preparation, SDS-PAGE and Western Blot

Experiments were performed as described earlier.

cell line WTWT HREHIF1A shRNA2HIF1A shRNA2 HRE
CoCl2 [µM] 0 400040004000400

cell lineWTCRE:HIF1A,HRE:LUCHIF1A shRNA2 CMV:HIF1A,HRE:LUC
CoCl2 [µM] 400 4004004004004004000400
pH 6.57.17.76.57.17.7
Forskolin+IBMX ---+++

23.10.17

Sample preparation, SDS-PAGE and Western Blot

Experiments were performed as described earlier.

cell line WTWT CMV:HIF1AlaWTWT CMV:HIF1AWT,CMV:HIF1A_2
CoCl2 [µM] 0 4000400 04000400400

cell linelaJK HRE, high
CoCl2 [µM] 0 510204080160320