Table 2

Protocol of DOP–PCR

ReagentVolume (μl)Reaction
10× high salt buffer: 200 mM Tris/HCl (pH 9.2), 600 mM KCl, and 20 mM MgCl2.
10× low salt buffer: 100 mM Tris/HCl (pH 8.4), 100 mM KCl, and 15 mM MgCl2.
DOP–PCR, degenerate oligonucleotide primed polymerase chain reaction.
Preamplification step
10× high salt buffer0.51 minute denaturation at 94°C
2 mM dNTP0.51 minute annealing at 25°C
10 μM UN1 primer0.53 minute ramp from 25°C to 74°C
ThermoSequenase (4 U/μl)0.52 minutes extension at 74°C
Sample3.04 cycles in total
5.0 (total)
Second amplification step add
10× low salt buffer2.01 minute denaturation at 94°C
2 mM dNTP5.01 minute annealing at 56°C
Water12.22 minutes extension at 72°C
100 μM UN1-primer0.330 cycles in total
Taq polymerase LD (5 U/μl)0.5
25.0 (total)