Line 251: | Line 251: | ||
</tr> | </tr> | ||
</table> | </table> | ||
+ | <br> <br> | ||
+ | |||
+ | <b> Wednesday, 08/16/17 </b> | ||
+ | <br> <br> | ||
+ | 1. Gel run of psB4A5 gradient PCR (A,B,C,0.1,1,10)<br> | ||
+ | <div style="text-align: justify; margin-left:20px"> | ||
+ | - run at 120 V a 40 min -> only 2 bands at well 1A <br> | ||
+ | - run at 120 V another 30 min -> lost DNA from gel <br> | ||
+ | - <b>1A (60°C/1:100 DNA) might have worked so I did a PCR purification for this one </b></div> | ||
+ | |||
+ | 2. Gel purification of dCAs9 A + B fragments and 1A-psB4A5 linearized plasmid <br> | ||
+ | <div style="text-align: justify; margin-left:20px"> | ||
+ | - used Promega PCR/Gel purification kit: final concentration pSB4A5 18 ng/uL <br> | ||
+ | |||
+ | https://www.promega.de/resources/protocols/technical-bulletins/101/wizard-sv-gel-and-pcr-cleanup-system-protocol/ <br> | ||
+ | |||
+ | <b>IMPORTANT: We use AE-buffer for elution in the last step (50 uL) instead of water!</b></div> | ||
+ | |||
+ | 3. Fusion PCR of dCAs9 fragments A + B <br> | ||
+ | <div style="text-align: justify; margin-left:20px"> | ||
+ | - Primer used: Q5 + Q6 </div><br><br> | ||
+ | <table> | ||
+ | <tr> | ||
+ | <th width="50%" align="center"><b>component</b></th> | ||
+ | <th width="50%" align="center"><b>volume in µl</b></th> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center">Q5-MM</td> | ||
+ | <td align="center">12,5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center">DNA</td> | ||
+ | <td align="center">2(1 pro fragment)</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center">H<sub>2</sub>O</td> | ||
+ | <td align="center">10,5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center">final volume</td> | ||
+ | <td align="center">25</td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | <br> <br> | ||
+ | |||
+ | <b>IMPORTANT: Fusion PCR done like team munich!</b><br> | ||
+ | |||
+ | https://static.igem.org/mediawiki/2014/c/c9/LMU_Munich14_FusionPCR.pdf<br> | ||
+ | <div style="text-align: justify; margin-left:20px"> | ||
+ | - first made a PCR mix of 25 uL without primers<br> | ||
+ | - then run mix in thermocycler with programm (fusion pcr)<br> | ||
+ | - in the middle there is a hold step in the programm<br> | ||
+ | - you then add the primers mixed with buffer (5 uL total volume) for an endvolume of 30 uL<br> | ||
+ | - IG_C_Q19/20 and Q24 resuspended auf 100 uM and diluted to 10 uM </div> | ||
<br> <br> | <br> <br> | ||
</p> | </p> |
Revision as of 11:18, 1 November 2017
Lab book
We splitted our labbook into the following parts:
Friday, 07/21/17
- took pSB4A5 backbone out of DNA distribution Kit and transformed into E.coli
(rest from Kit was put in -20 °C)
Tuesday, 07/25/17
- Inoculated LB media with psB4A5
Wednesday, 07/26/17
- Miniprep with Promega “Plus SV Miniprep DNA Purification System”
Thursday, 08/10/17
- glycerol stock (30%) of IG_C_P1_G (pSB4A5)
- prepared 10 mL preculture with pdCas9-Bacteria E.coli from plate from Fabian for Miniprep
Monday, 08/14/17
- primer resuspended to 100 uM (except Q8):
- diluted all primers to 10 uM in separate aliquotes
- prepareed 3 separate PCRs with primer pairs:
Q5/Q8 (Eppi A), Q6/Q7 (Eppi B), Q15/Q16 (Eppi c)
- pipetting scheme:
- after PCR: gel electrophoresis as follows:
- 2.5 uL DNA + 2uL Loading Dye + 7.5 uL (total 12 uL)
- ran gel at 120 V for 40 minutes
gel picture:
- order of pockets: ABC, A and B are correct size, C did not work well, there is a band at the desired result and one at the unopened plasmid (and several other stuff) so PCR has to be done again
- dCas9 fragments look good and can be worked with tomorrow
Tuesday, 08/15/17
1. DpnI digestion of dCas9 fragments A + B
- Duration: 1 hour
IMPORTANT: Fabian told me you can just add about 1 uL DpnI to the reaction-mix
2. Gel run of dCas9 A + B
3. Linearization PCR of psB4A5 (second atempt) via gradient PCR
(rest from Kit was put in -20 °C)
Tuesday, 07/25/17
- Inoculated LB media with psB4A5
Wednesday, 07/26/17
- Miniprep with Promega “Plus SV Miniprep DNA Purification System”
- 2 approaches with psB4A5
- final concentration:
- final concentration:
- approach 1: 30 ng/ul
- approach 2: 40 ng/ul
- approach 2: 40 ng/ul
Thursday, 08/10/17
- glycerol stock (30%) of IG_C_P1_G (pSB4A5)
- prepared 10 mL preculture with pdCas9-Bacteria E.coli from plate from Fabian for Miniprep
Monday, 08/14/17
- primer resuspended to 100 uM (except Q8):
primer | volume in µl |
---|---|
Q5 | 354 |
Q6 | 957 |
Q7 | 749 |
Q8 | 657 (83,1 uM) |
Q15 | 956 |
Q16 | 1455 |
Q17 | 1693 |
Q18 | 1440 |
- prepareed 3 separate PCRs with primer pairs:
Q5/Q8 (Eppi A), Q6/Q7 (Eppi B), Q15/Q16 (Eppi c)
- pipetting scheme:
Q5 2X MasterMix: 5 uL
10 uM Primer: each 0,5 uL
Template: 1 uL of 1:100 diluted Miniprep (about 0,5 ng)
ddH2O: 3 uL
total: 10 uL
- cycling conditions (prog01 in Epepndorf Mastercycler nexus gradient (Torsten):10 uM Primer: each 0,5 uL
Template: 1 uL of 1:100 diluted Miniprep (about 0,5 ng)
ddH2O: 3 uL
total: 10 uL
temperature | time in sec |
---|---|
98 °C | 30 |
98 °C | 10 |
64 °C | 20 |
72 °C | 110 |
72 °C | 120 |
- 2.5 uL DNA + 2uL Loading Dye + 7.5 uL (total 12 uL)
- ran gel at 120 V for 40 minutes
gel picture:
- order of pockets: ABC, A and B are correct size, C did not work well, there is a band at the desired result and one at the unopened plasmid (and several other stuff) so PCR has to be done again
- dCas9 fragments look good and can be worked with tomorrow
Tuesday, 08/15/17
1. DpnI digestion of dCas9 fragments A + B
component | volume in µl |
---|---|
DpnI | 2,6 |
DNA | 6,5 |
cutsmart-Buffer | 5,0 |
H2O | 35,9 |
final volume | 50 |
IMPORTANT: Fabian told me you can just add about 1 uL DpnI to the reaction-mix
2. Gel run of dCas9 A + B
- let it run on gel for purification
- 140 V a 40 min
- cut out was done by Natalie and Pauline
- 140 V a 40 min
- cut out was done by Natalie and Pauline
3. Linearization PCR of psB4A5 (second atempt) via gradient PCR
- made new PCR using Q15/Q16 primers and psB4A5 plasmid fpr linearization
- used 3 different DNA concentrations and 3 different annealing temperatures (9 reactions total)
- annealing temperatures: A = 60°C/B = 64,5°C/C = 68°C
- DNA concentrations: 0,1 = 1:1000 / 1 = 1:100 / 10 = 1:10
Scheme:
Wednesday, 08/16/17
1. Gel run of psB4A5 gradient PCR (A,B,C,0.1,1,10)
IMPORTANT: Fusion PCR done like team munich!
https://static.igem.org/mediawiki/2014/c/c9/LMU_Munich14_FusionPCR.pdf
- used 3 different DNA concentrations and 3 different annealing temperatures (9 reactions total)
component | 1 reaction: volume in µl |
10 reaction MM: volume in µl |
---|---|---|
HiQ | 5 | 50 |
primer | 1,25 | 12,5 |
DNA | variable (1 µl) | variable |
H2O | 17,5 | 175 |
final volume | 25 | 250 |
- DNA concentrations: 0,1 = 1:1000 / 1 = 1:100 / 10 = 1:10
Scheme:
0,1 A | 0,1 B | 0,1 C |
1 A | 1 B | 1 C |
10 A | 10 B | 10 C |
Wednesday, 08/16/17
1. Gel run of psB4A5 gradient PCR (A,B,C,0.1,1,10)
- run at 120 V a 40 min -> only 2 bands at well 1A
- run at 120 V another 30 min -> lost DNA from gel
- 1A (60°C/1:100 DNA) might have worked so I did a PCR purification for this one
2. Gel purification of dCAs9 A + B fragments and 1A-psB4A5 linearized plasmid - run at 120 V another 30 min -> lost DNA from gel
- 1A (60°C/1:100 DNA) might have worked so I did a PCR purification for this one
- used Promega PCR/Gel purification kit: final concentration pSB4A5 18 ng/uL
https://www.promega.de/resources/protocols/technical-bulletins/101/wizard-sv-gel-and-pcr-cleanup-system-protocol/
IMPORTANT: We use AE-buffer for elution in the last step (50 uL) instead of water!
3. Fusion PCR of dCAs9 fragments A + B https://www.promega.de/resources/protocols/technical-bulletins/101/wizard-sv-gel-and-pcr-cleanup-system-protocol/
IMPORTANT: We use AE-buffer for elution in the last step (50 uL) instead of water!
- Primer used: Q5 + Q6
component | volume in µl |
---|---|
Q5-MM | 12,5 |
DNA | 2(1 pro fragment) |
H2O | 10,5 |
final volume | 25 |
IMPORTANT: Fusion PCR done like team munich!
https://static.igem.org/mediawiki/2014/c/c9/LMU_Munich14_FusionPCR.pdf
- first made a PCR mix of 25 uL without primers
- then run mix in thermocycler with programm (fusion pcr)
- in the middle there is a hold step in the programm
- you then add the primers mixed with buffer (5 uL total volume) for an endvolume of 30 uL
- IG_C_Q19/20 and Q24 resuspended auf 100 uM and diluted to 10 uM
- then run mix in thermocycler with programm (fusion pcr)
- in the middle there is a hold step in the programm
- you then add the primers mixed with buffer (5 uL total volume) for an endvolume of 30 uL
- IG_C_Q19/20 and Q24 resuspended auf 100 uM and diluted to 10 uM
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