Ubiquitin ligase UBR3 regulates cellular levels of the essential DNA repair protein APE1 and is required for genome stability.
Ubiquitin ligase UBR3 regulates cellular levels of the essential DNA repair protein APE1 and is required for genome stability.
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DOI:
10.1093/nar/gkr744
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发表时间:
2012-01
影响因子:
14.9
通讯作者:
Dianov GL
中科院分区:
文献类型:
--
作者:
Meisenberg C;Tait PS;Dianova II;Wright K;Edelmann MJ;Ternette N;Tasaki T;Kessler BM;Parsons JL;Kwon YT;Dianov GL
APE1 (Ref-1) is an essential human protein involved in DNA damage repair and regulation of transcription. Although the cellular functions and biochemical properties of APE1 are well characterized, the mechanism involved in regulation of the cellular levels of this important DNA repair/transcriptional regulation enzyme, remains poorly understood. Using an in vitro ubiquitylation assay, we have now purified the human E3 ubiquitin ligase UBR3 as a major activity that polyubiquitylates APE1 at multiple lysine residues clustered on the N-terminal tail. We further show that a knockout of the Ubr3 gene in mouse embryonic fibroblasts leads to an up-regulation of the cellular levels of APE1 protein and subsequent genomic instability. These data propose an important role for UBR3 in the control of the steady state levels of APE1 and consequently error free DNA repair.
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影响因子:
21.3
作者:
Huang, En;Qu, Dianbo;Park, David S.
通讯作者:
Park, David S.
DOI:
10.1073/pnas.88.24.11450
发表时间:
1991-12-01
影响因子:
11.1
作者:
DEMPLE, B;HERMAN, T;CHEN, DS
通讯作者:
CHEN, DS
影响因子:
11.5
作者:
Sak, SC;Harnden, P;Kiltie, AE
通讯作者:
Kiltie, AE
影响因子:
6
作者:
Gisselsson, D;Björk, J;Mandahl, N
通讯作者:
Mandahl, N
DOI:
10.1016/s0921-8777(98)00039-1
发表时间:
1998-10-21
期刊:
MUTATION RESEARCH-DNA REPAIR
影响因子:
--
作者:
Ludwig, DL;MacInnes, MA;Chen, DJ
通讯作者:
Chen, DJ