Article
Different types of interaction between PCNA and PIP boxes contribute to distinct cellular functions of Y-family DNA polymerases.
Nucleic acids research - 18 Sept 2015
Masuda Yuji, Kanao Rie, Kaji Kentaro, Ohmori Haruo, Hanaoka Fumio, Masutani Chikahide
Abstract excerpt
Translesion DNA synthesis (TLS) by the Y-family DNA polymerases Polη, Polι and Polκ, mediated via interaction with proliferating cell nuclear antigen (PCNA), is a crucial pathway that protects human cells against DNA damage. We report that Polη has three PCNA-interacting protein (PIP) boxes (PIP1, 2, 3) that contribute differentially to two distinct functions, stimulation of DNA synthesis and promotion of PCNA...
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