DNA polymerase II participates in chromosomal DNA replication. a 2'-deoxyribonucleoside 5'-triphosphate + DNA(n) = diphosphate + DNA(n+1) Binds 1 [4Fe-4S] cluster. Heterotetramer. Consists of 4 subunits: pol2, dpb2, dpb3 and dpb4 (By similarity). The CysA-type zinc finger is required for PCNA-binding. The CysB motif binds 1 4Fe-4S cluster and is required for the formation of polymerase complexes. Belongs to the DNA polymerase type-B family.