Team:Warsaw/Calendar-Main/31 July 2008

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<center><h4>Checking if degradation of fusion with OmpA is a result of Top10 proteases' activity (lon, iompt)</center>Piotr:</h4>
<center><h4>Checking if degradation of fusion with OmpA is a result of Top10 proteases' activity (lon, iompt)</center>Piotr:</h4>
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Inoculation of OmpA_omega_A_alpha and OmpA_A_alpha with and without inductor (0,5IPTG) in <i>E. coli</i> Rosetta strain.  
Inoculation of OmpA_omega_A_alpha and OmpA_A_alpha with and without inductor (0,5IPTG) in <i>E. coli</i> Rosetta strain.  

Revision as of 14:45, 9 October 2008

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1. Optimization of PCR to obtain truncated fragment of protein A DNA

Primers: AL+SacI AP+NotI

Elongation time: 30s

- Optimization of annealing temperature (gradient from 55°C to 75°C)
- Optimization of number of cycles(15, 20, 25, 30, 35)

2. PCR to obtain truncated A protein DNA fragment

Primers: AL+SacI AP+NotI

Elongation time: 30s

Annealing temperature: 60°C

20 cycles

3. Gel electrophoresis and isolation of 250 bp band.
4. Digest of isolated PCR product, pACYC177+OmpA_alpha and pACYC177+OmpA_omega with NotI and SacI.
5. Clean-up of digestion reaction.
6. Gel electrophoresis for estimation of DNA concentration.
7. Overnight ligation: pACYC177+OmpA_alpha + deltaA and pACYC177+OmpA_omega + deltaA.


Checking if degradation of fusion with OmpA is a result of Top10 proteases' activity (lon, iompt)

Piotr:
Inoculation of OmpA_omega_A_alpha and OmpA_A_alpha with and without inductor (0,5IPTG) in E. coli Rosetta strain.