4D2G:
reference: Structure of p15(PAF)-PCNA complex and implications for clamp sliding during DNA replication and repair., De Biasio A, de Opakua AI, Mortuza GB, Molina R, Cordeiro TN, Castillo F, Villate M, Merino N, Delgado S, Gil-Carton D, Luque I, Diercks T, Bernado P, Montoya G, Blanco FJ, Nat Commun. 2015 Mar 12;6:6439. doi: 10.1038/ncomms7439. PMID: 25762514

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