Members of this family of proteins are cell-growth suppressors, associating with and influencing the biological activities of important cell cycle regulators in the S phase including monomeric non-phosphorylated cyclin-dependent kinase 2 (CDK2) and DNA polymerase alpha/primase. An association between mutations in the gene coding for this protein and oral cancer has been described.

1: Interaction of the CDK2-associated protein-1, p12(DOC-1/CDK2AP1), with its homolog, p14(DOC-1R). Buajeeb W, Zhang X, Ohyama H, Han D, Surarit R, Kim Y, Wong DT; Biochem Biophys Res Commun. 2004;315:998-1003. PMID:14985111