Phosphorylation of the PCNA binding domain of the large subunit of replication factor C on Thr506 by cyclin-dependent kinases regulates binding to PCNA.
Phosphorylation of the PCNA binding domain of the large subunit of replication factor C on Thr506 by cyclin-dependent kinases regulates binding to PCNA.
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细胞周期蛋白依赖性激酶将复制因子 C 大亚基 Thr506 上的 PCNA 结合域磷酸化,调节与 PCNA 的结合。
DOI:
10.1093/nar/gkg692
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发表时间:
2003
影响因子:
14.9
通讯作者:
Jacquinod,Michel
中科院分区:
文献类型:
--
作者:
Salles-Passador,Isabelle;Munshi,Anil;Cannella,Dominique;Pennaneach,Vincent;Koundrioukoff,Stephane;Jaquinod,Michel;Forest,Eric;Podust,Vladimir;Fotedar,Arun;Fotedar,Rati;Jacquinod,Michel
Replication factor C (RF‐C) complex binds to DNA primers and loads PCNA onto DNA, thereby increasing the processivity of DNA polymerases. We have previously identified a distinct region, domain B, in the large subunit of human RF‐C (RF‐Cp145) which binds to PCNA. We show here that the functional interaction of RF‐Cp145 with PCNA is regulated by cdk‐cyclin kinases. Phosphorylation of either RF‐Cp145 as a part of the RF‐C complex or RF‐Cp145 domain B by cdk‐cyclin kinases inhibits their ability to bind PCNA. A cdk‐cyclin phosphorylation site, Thr506in RF‐Cp145, identified by mass spectrometry, is also phosphorylatedin vivo. A Thr506→Ala RF‐Cp145 domain B mutant is a poorin vitrosubstrate for cdk‐cyclin kinase and, consequently, the ability of this mutant to bind PCNA was not suppressed by phosphorylation. By generating an antibody directed against phospho‐Thr506in RF‐Cp145, we demonstrate that phosphorylation of endogenous RF‐Cp145 at Thr506is mediated by CDKs since it is abolished by treatment of cells with the cdk‐cyclin inhibitor roscovitine. We have thus mapped anin vivocdk‐cyclin phosphorylation site within the PCNA binding domain of RF‐Cp145.
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影响因子:
64.5
作者:
D. Jeruzalmi;M. O’Donnell;J. Kuriyan
通讯作者:
D. Jeruzalmi;M. O’Donnell;J. Kuriyan
影响因子:
64.5
作者:
Jeruzalmi, D;Yurieva, O;Kuriyan, J
通讯作者:
Kuriyan, J
影响因子:
4.8
作者:
LEE, SH;KIM, DK
通讯作者:
KIM, DK
DOI:
10.1101/sqb.1991.056.01.039
发表时间:
1991
期刊:
Cold Spring Harbor symposia on quantitative biology
影响因子:
--
作者:
R. Fotedar;J. Roberts
通讯作者:
J. Roberts
DOI:
10.1016/s0021-9258(19)51069-9
发表时间:
1994-09
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Leigh k Henricksen;M. Wold
通讯作者:
Leigh k Henricksen;M. Wold