Table 1 Sequences of primers used in this study

Gene	Primer sequence (5′→3′)
h-AHNAK2	Forward GAGAAGGAGGACACGGATGTTGC
	Reverse CCCCGCTTGCTCTTTATGGATTG
h-PCNA	Forward TGGAGAACTTGGAAATGGAAA
	Reverse GAACTGGTTCATTCATCTCTATGG
h-RFC1	Forward TTGTCATGGGTCGTGATAGTGG
	Reverse CCTGGCATAGTCCGAATCAGAT
h-RFC3	Forward CTTCCTTCACAACTGGCTCAT
	Reverse TGCAGGCTTCACACATAAGCA
h-MCM4	Forward TGAACCTCTATACATGCAACGAC
	Reverse CAGGGTAACGGTCAAAGAAGATT
h-MCM6	Forward GAGGAACTGATTCGTCCTGAGA
	Reverse CAAGGCCCGACACAGGTAAG
h-POLA1	Forward AAAGATCCATTGGAGCTTCACC
	Reverse TCAGCACGTTTAAGAGGAACAG
h-POLD3	Forward GAGTTCGTCACGGACCAAAAC
	Reverse GCCAGACACCAAGTAGGTAAC
h-POLE2	Forward TGAGAAGCAACCCTTGTCATC
	Reverse TCATCAACAGACTGACTGCATTC
h-DNA2	Forward AGAGCTGTCCTGAGTGAAACT
	Reverse GAAACACCTCATGGAGAACCG
h-RNASEH2B	Forward TAACCCCTGTTCAGGAGAAGG
	Reverse ACACGTTATCCACCACAACTTG
h-PRIM2	Forward AATGCTTCCTACCCTCATTGC
	Reverse AGCTCACTCTCCAACTTACTCTG
h-GAPDH	Forward GGAGCGAGATCCCTCCAAAAT
	Reverse GGCTGTTGTCATACTTCTCATGG