X-ray structure of the complex of regulatory subunits of human DNA polymerase delta.
X-ray structure of the complex of regulatory subunits of human DNA polymerase delta.
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DOI:
10.4161/cc.7.19.6720
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发表时间:
2008-10
期刊:
影响因子:
--
通讯作者:
Tahirov TH
中科院分区:
文献类型:
--
作者:
Baranovskiy AG;Babayeva ND;Liston VG;Rogozin IB;Koonin EV;Pavlov YI;Vassylyev DG;Tahirov TH
The eukaryotic DNA polymerase δ (Pol δ) participates in genome replication, homologous recombination, DNA repair and damage tolerance. Regulation of the plethora of Pol δ functions depends on the interaction between the second (p50) and third (p66) non-catalytic subunits. We report the crystal structure of p50•p66N complex featuring oligonucleotide binding and phosphodiesterase domains in p50 and winged helix-turn-helix N-terminal domain in p66. Disruption of the interaction between the yeast orthologs of p50 and p66 by strategic amino acid changes leads to cold-sensitivity, sensitivity to hydroxyurea and to reduced UV mutagenesis, mimicking the phenotypes of strains where the third subunit of Pol δ is absent. The second subunits of all B family replicative DNA polymerases in archaea and eukaryotes, except Pol δ, share a three-domain structure similar to p50•p66N, raising the possibility that a portion of the gene encoding p66 was derived from the second subunit gene relatively late in evolution.
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影响因子:
64.5
作者:
Franklin, MC;Wang, JM;Steitz, TA
通讯作者:
Steitz, TA
影响因子:
14.9
作者:
Kozmin, SG;Pavlov, YI;Sage, E
通讯作者:
Sage, E
影响因子:
4.3
作者:
Li, Hao;Xie, Bin;Lee, Marietta Y. W. T.
通讯作者:
Lee, Marietta Y. W. T.
影响因子:
14.9
作者:
Aravind, L;Koonin, EV
通讯作者:
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DOI:
10.1107/s0907444998003254
发表时间:
1998-09-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Brunger, AT;Adams, PD;Warren, GL
通讯作者:
Warren, GL