Preventive Cardiovascular Nurses Association
(= proliferating cell nuclear antigen) Commonly used marker for proliferating cells, a 35 kD protein that associates as a trimer, and as a trimer interacts with DNA polymerases d and e ; acts as an auxiliary factor for DNA repair and replication. Transcription of PCNA is modulated by p53.
Type: Abbreviation Definitions: 1. Abbreviation for proliferating cell nuclear antigen.