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. 2014 Dec 1;7:863. doi: 10.1186/1756-0500-7-863

Table 13.

Touchdown PCR thermocycling conditions

Initial denaturation 94°C 2 min
Touchdown 11 cycles 94°C 30 sec
55°C 30 sec −1°C /cycle
68°C 2 min
Denaturation 40 cycles 94°C 30 sec
Annealing 4x8°C 30 sec
Extension 68°C 2 min
Final extension 68°C 10 min
Holding 12°C forever

All the PCR conditions in this study are touchdown PCR, with adjustments to the annealing temperatures, and extension times.