Preparation of constructs: OmpA_alpha and OmpA_omega
Michał K.
- PCR on pB30D plasmid with
OmpaL_N and OmpaP_link
primers (15 cycles, elongation duration 45 s, annealing temperature 63°C).
- PCR on pUC19 plasmid with
AlphaL_link and AlphaP_XB
primers (20 cycles, elongation duration 45 s, annealing temperature 63°C).
- PCR on pUC19 plasmid with
OmegaL_link and OmegaP_EPB
primers (20 cycles, elongation duration 30 s, annealing temperature 58°C).
As a result we got three PCR products: OmpA_linker and two fragments of TEM1 beta-lactamese: linker_alpha and linker_omega.
- Gel electrophoresis of PCR products (Fig. 1) and gel-out of proper bands (OmpA_linker - 500 bp, linker_alpha - 600 bp and linker_omega - 350 bp).
- Electrophoresis to estimate the concentration of isolated DNA.
Fig. 1. PCR products: linker_alpha (lane 2), linker_omega (lane 3), OmpA_linker (lane 4)
Blue/white and rifampicin test #1
Michał L., Ewa
- Colony PCR.
Template: DNA isolated from white colonies
Primers: pZCseqL and pZCseqR
Colony PCR program |
Temperature | Time | No. of cycles |
94°C | 4:00 |
94°C | 0:30 | 28 cycles |
48°C | 0:45 |
72°C | 1:30 |
72°C | 10:00 |
4°C | infinite |
- DNA gel electrophoresis of PCR products. Fig. 2.
- Gel-out of proper products (~1200 bp).
- Sequencing of proper fragments using primer pZCseqL.
Fig. 2. 1 - DNA ladder; 2 to 11 - colony PCR products (lacZ' gene) from blue and white colonies.
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