Michał K.
- Gel electrophoresis (15 May PCR's) and DNA isolation from proper bands (600 bp for AID lane and 2700 bp for T7 polymerase lanes).
- Electrophoresis to estimate the concentration of isolated DNA.
- PCR - translational fusion: AID + T7 RNA-polymerase - optimization (annealing temperature gradient 60°C - 80°C). Fig. 1.
Primers:
AIDlNrH and
T7pXbSal
Template DNA: purified PCR products from 15 May - AID and T7 RNA-polymerase for translational fusion
Elongation time: 4 minutes
35 cycles
- Optimization of PCR - translational fusion: AID + T7 RNA-polymerase - MgCl2 concentration and number of cycles. Fig. 2.
Primers:
AIDlNrH and
T7pXbSal
Template DNA: purified PCR products from 15 May - AID and T7 RNA-polymerase for translational fusion
Annealing temperature: 73°C
Elongation time: 4 minutes
- Gel electrophoresis of PCR products.
Fig. 1. PCR products - optimization of annealing temperature: 1-DNA ladder; 2 to 8 -annealing temperature 60°C (in lane 2) to 80°C (in lane 8).
Fig. 2. PCR products - optimization of MgCl2 concentration and number of cycles:
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DNA ladder;
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2 μl MgCl2, 20 cycles;
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3 μl MgCl2, 20 cycles;
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2 μl MgCl2, 25 cycles;
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3 μl MgCl2, 25 cycles;
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2 μl MgCl2, 30 cycles;
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3 μl MgCl2, 30 cycles;
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2 μl MgCl2, 35 cycles;
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3 μl MgCl2, 35 cycles.
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