Proliferating Cell Nuclear Antigen

**Semantic type:** Amino Acid, Peptide, or Protein

**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.

**Synonyms:** - Cyclin - DNA Polymerase Delta Auxiliary Protein - PCNA