3olc

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[[Image:3olc.jpg|left|200px]]
 
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{{STRUCTURE_3olc| PDB=3olc | SCENE= }}
{{STRUCTURE_3olc| PDB=3olc | SCENE= }}
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===Crystal structure of the N-terminal region of TopBP1===
===Crystal structure of the N-terminal region of TopBP1===
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{{ABSTRACT_PUBMED_20858457}}
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==Function==
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[[http://www.uniprot.org/uniprot/TOPB1_HUMAN TOPB1_HUMAN]] Required for DNA replication. Plays a role in the rescue of stalled replication forks and checkpoint control. Binds double-stranded DNA breaks and nicks as well as single-stranded DNA. Recruits the SWI/SNF chromatin remodeling complex to E2F1-responsive promoters. Down-regulates E2F1 activity and inhibits E2F1-dependent apoptosis during G1/S transition and after DNA damage. Induces a large increase in the kinase activity of ATR.<ref>PMID:10498869</ref> <ref>PMID:11395493</ref> <ref>PMID:11714696</ref> <ref>PMID:12697828</ref> <ref>PMID:15075294</ref> <ref>PMID:16530042</ref>
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{{ABSTRACT_PUBMED_20858457}}
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==About this Structure==
==About this Structure==
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==Reference==
==Reference==
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<ref group="xtra">PMID:20858457</ref><references group="xtra"/>
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<ref group="xtra">PMID:020858457</ref><references group="xtra"/><references/>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Bai, L.]]
[[Category: Bai, L.]]
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[[Category: Jiang, T.]]
[[Category: Jiang, T.]]
[[Category: Xu, M.]]
[[Category: Xu, M.]]
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[[Category: Brct domain]]
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[[Category: Dna binding protein]]
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[[Category: Dna repair]]
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[[Category: Rad9]]

Revision as of 08:27, 2 May 2013

Template:STRUCTURE 3olc

Contents

Crystal structure of the N-terminal region of TopBP1

Template:ABSTRACT PUBMED 20858457

Function

[TOPB1_HUMAN] Required for DNA replication. Plays a role in the rescue of stalled replication forks and checkpoint control. Binds double-stranded DNA breaks and nicks as well as single-stranded DNA. Recruits the SWI/SNF chromatin remodeling complex to E2F1-responsive promoters. Down-regulates E2F1 activity and inhibits E2F1-dependent apoptosis during G1/S transition and after DNA damage. Induces a large increase in the kinase activity of ATR.[1] [2] [3] [4] [5] [6]

About this Structure

3olc is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

  • Huo YG, Bai L, Xu M, Jiang T. Crystal structure of the N-terminal region of human Topoisomerase IIbeta binding protein 1. Biochem Biophys Res Commun. 2010 Oct 22;401(3):401-5. Epub 2010 Sep 19. PMID:20858457 doi:10.1016/j.bbrc.2010.09.066
  1. ↑ Yamane K, Tsuruo T. Conserved BRCT regions of TopBP1 and of the tumor suppressor BRCA1 bind strand breaks and termini of DNA. Oncogene. 1999 Sep 16;18(37):5194-203. PMID:10498869 doi:10.1038/sj.onc.1202922
  2. ↑ Makiniemi M, Hillukkala T, Tuusa J, Reini K, Vaara M, Huang D, Pospiech H, Majuri I, Westerling T, Makela TP, Syvaoja JE. BRCT domain-containing protein TopBP1 functions in DNA replication and damage response. J Biol Chem. 2001 Aug 10;276(32):30399-406. Epub 2001 Jun 6. PMID:11395493 doi:10.1074/jbc.M102245200
  3. ↑ Honda Y, Tojo M, Matsuzaki K, Anan T, Matsumoto M, Ando M, Saya H, Nakao M. Cooperation of HECT-domain ubiquitin ligase hHYD and DNA topoisomerase II-binding protein for DNA damage response. J Biol Chem. 2002 Feb 1;277(5):3599-605. Epub 2001 Nov 19. PMID:11714696 doi:10.1074/jbc.M104347200
  4. ↑ Liu K, Lin FT, Ruppert JM, Lin WC. Regulation of E2F1 by BRCT domain-containing protein TopBP1. Mol Cell Biol. 2003 May;23(9):3287-304. PMID:12697828
  5. ↑ Liu K, Luo Y, Lin FT, Lin WC. TopBP1 recruits Brg1/Brm to repress E2F1-induced apoptosis, a novel pRb-independent and E2F1-specific control for cell survival. Genes Dev. 2004 Mar 15;18(6):673-86. PMID:15075294 doi:10.1101/gad.1180204
  6. ↑ Kumagai A, Lee J, Yoo HY, Dunphy WG. TopBP1 activates the ATR-ATRIP complex. Cell. 2006 Mar 10;124(5):943-55. PMID:16530042 doi:10.1016/j.cell.2005.12.041

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