NCIt synonyms : PCNA; Cyclin; DNA Polymerase Delta Auxiliary Protein;
NCIt definition : Proliferating cell nuclear antigen (261 aa, 29 kDa) is encoded by the human PCNA
gene. This protein is involved in the regulation of both DNA replication and DNA mismatch
repair.;
NCIt note : This protein is found in the nucleus and is a cofactor of DNA polymerase delta. It
acts as a homotrimer and helps increase the processivity of leading strand synthesis
during DNA replication. In response to DNA damage, this protein is ubiquitinated and
is involved in the RAD6-dependent DNA repair pathway. (LocusLink);