Proliferating cell nuclear antigen (PCNA) is a processivity factor of DNA replication which plays critical roles in the regulation of DNA replication and repair. In this study, we show that PCNA interacts directly in vitro and in cells with 14-3-3, an adaptor protein that regulates cell growth and response to DNA damage in eukaryotes. The interaction is mediated by at least two PCNA-binding sites on 14-3-3, one of which is a novel non-canonical PIP (PCNA interacting protein) box. We find that DNA damages induced by UVC irradiation and MMS (methyl methanesulfonate) can enhance both the interaction of these two proteins and their co-localization with chromatin. Functional analyses suggest that 14-3-3 stabilizes PCNA possibly by regulating its ubiquitination, which impacts on DNA damage repair and cell viability. J. Cell. Biochem. 116: 158-169, 2015. (c) 2014 Wiley Periodicals, Inc.
机构:
Imperial Canc Res Fund, Clare Hall Labs, Canc Res UK London Res Inst, S Mimms EN6 3LD, Herts, EnglandImperial Canc Res Fund, Clare Hall Labs, Canc Res UK London Res Inst, S Mimms EN6 3LD, Herts, England
Davies, Adelina A.
;
Neiss, Andrea
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Max Planck Inst Terr Microbiol, D-35043 Marburg, GermanyImperial Canc Res Fund, Clare Hall Labs, Canc Res UK London Res Inst, S Mimms EN6 3LD, Herts, England
Neiss, Andrea
;
Ulrich, Helle D.
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机构:
Imperial Canc Res Fund, Clare Hall Labs, Canc Res UK London Res Inst, S Mimms EN6 3LD, Herts, EnglandImperial Canc Res Fund, Clare Hall Labs, Canc Res UK London Res Inst, S Mimms EN6 3LD, Herts, England
机构:
Imperial Canc Res Fund, Clare Hall Labs, Canc Res UK London Res Inst, S Mimms EN6 3LD, Herts, EnglandImperial Canc Res Fund, Clare Hall Labs, Canc Res UK London Res Inst, S Mimms EN6 3LD, Herts, England
Davies, Adelina A.
;
Neiss, Andrea
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h-index: 0
机构:
Max Planck Inst Terr Microbiol, D-35043 Marburg, GermanyImperial Canc Res Fund, Clare Hall Labs, Canc Res UK London Res Inst, S Mimms EN6 3LD, Herts, England
Neiss, Andrea
;
Ulrich, Helle D.
论文数: 0引用数: 0
h-index: 0
机构:
Imperial Canc Res Fund, Clare Hall Labs, Canc Res UK London Res Inst, S Mimms EN6 3LD, Herts, EnglandImperial Canc Res Fund, Clare Hall Labs, Canc Res UK London Res Inst, S Mimms EN6 3LD, Herts, England