6p66: Difference between revisions

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<StructureSection load='6p66' size='340' side='right'caption='[[6p66]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
<StructureSection load='6p66' size='340' side='right'caption='[[6p66]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[6p66]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Archaeoglobus_fulgidus_DSM_4304 Archaeoglobus fulgidus DSM 4304]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6P66 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6P66 FirstGlance]. <br>
<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6P66 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6P66 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3&#8491;</td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6p66 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6p66 OCA], [https://pdbe.org/6p66 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6p66 RCSB], [https://www.ebi.ac.uk/pdbsum/6p66 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6p66 ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6p66 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6p66 OCA], [https://pdbe.org/6p66 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6p66 RCSB], [https://www.ebi.ac.uk/pdbsum/6p66 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6p66 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/O29889_ARCFU O29889_ARCFU]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Nucleotide excision repair (NER) is a major DNA repair pathway for a variety of DNA lesions. XPB plays a key role in DNA opening at damage sites and coordinating damage incision by nucleases. XPB is conserved from archaea to human. In archaea, XPB is associated with a nuclease Bax1. Here we report crystal structures of XPB in complex with Bax1 from Archaeoglobus fulgidus (Af) and Sulfolobus tokodaii (St). These structures reveal for the first time four domains in Bax1, which interacts with XPB mainly through its N-terminal domain. A Cas2-like domain likely helps to position Bax1 at the forked DNA allowing the nuclease domain to incise one arm of the fork. Bax1 exists in monomer or homodimer but forms a heterodimer exclusively with XPB. StBax1 keeps StXPB in a closed conformation and stimulates ATP hydrolysis by XPB while AfBax1 maintains AfXPB in the open conformation and reduces its ATPase activity. Bax1 contains two distinguished nuclease active sites to presumably incise DNA damage. Our results demonstrate that protein-protein interactions regulate the activities of XPB ATPase and Bax1 nuclease. These structures provide a platform to understand the XPB-nuclease interactions important for the coordination of DNA unwinding and damage incision in eukaryotic NER.
Structural basis of the XPB-Bax1 complex as a dynamic helicase-nuclease machinery for DNA repair.,DuPrez K, He F, Chen Z, Hilario E, Fan L Nucleic Acids Res. 2020 Jun 19;48(11):6326-6339. doi: 10.1093/nar/gkaa324. PMID:32374860<ref>PMID:32374860</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6p66" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Endonuclease 3D structures|Endonuclease 3D structures]]
*[[Endonuclease 3D structures|Endonuclease 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Archaeoglobus fulgidus DSM 4304]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: DuPrez KT]]
[[Category: DuPrez KT]]
[[Category: Fan L]]
[[Category: Fan L]]
[[Category: Hilario E]]
[[Category: Hilario E]]

Latest revision as of 12:58, 6 November 2024

The crystal structure of the XPB complex with Bax1 from Archaeoglobus fulgidus at 3.0 Angstrom resolution

6p66, resolution 3.00Å

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