My protocol
Primary PCR (NP6/21): Initial Denaturation at 94C, 2 min.; 30 cycles Denaturation 94C 30 sec, Annealing 65C 1 min., Extension 72C 1 min.; Final Extension 72C 5 min.;
Nested PCR (NP7/10): Identical to Primary PCR. We used 1 ul of primary reaction in the nested.