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. Author manuscript; available in PMC: 2023 Jun 1.
Published in final edited form as: Curr Protoc. 2022 Jun;2(6):e445. doi: 10.1002/cpz1.445
Temperature Time Cycles
98 °C 30 sec 1

98 °C 10 sec 10–16*
65 °C 45 sec

65 °C 5 min 1

4 °C Hold
*
Cycle number should be adjusted based on experimental results, including quantity of library obtained and CUT&RUN profile generated. We typically use 14 cycles for 3–15 ng input DNA. Increasing cycles may result in excessive PCR duplicates, which show up as duplicated sequences in the data analysis, and may decrease data quality. Too few cycles would result in insufficient DNA quantities to sequence at the end of the protocol. In general, the fewer cycles the better, but enough cycles must be run to produce enough DNA for sequencing.