A 39 amino acid fragment of the cell cycle regulator p21 is sufficient to bind PCNA and partially inhibit DNA replication in vivo
Nucleic Acids Research (1996) - Comment
pubmed: 8649992  issn: 0305-1048  doi: 10.1093/nar/24.9.1727  issn: 1362-4962 

J. Chen, R. Peters, P. Saha, P. Lee, A. Theodoras, M. Pagano, G. Wagner, A. Dutta