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4hqe
From Proteopedia
(Difference between revisions)
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| - | + | ==The crystal structure of QsrR-DNA complex== | |
| - | + | <StructureSection load='4hqe' size='340' side='right' caption='[[4hqe]], [[Resolution|resolution]] 2.30Å' scene=''> | |
| - | + | == Structural highlights == | |
| + | <table><tr><td colspan='2'>[[4hqe]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HQE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4HQE FirstGlance]. <br> | ||
| + | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SAV2123 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1280 Staphylococcus aureus])</td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4hqe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hqe OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4hqe RCSB], [http://www.ebi.ac.uk/pdbsum/4hqe PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Quinone molecules are intracellular electron-transport carriers, as well as critical intra- and extracellular signals. However, transcriptional regulation of quinone signaling and its molecular basis are poorly understood. Here, we identify a thiol-stress-sensing regulator YodB family transcriptional regulator as a central component of quinone stress response of Staphylococcus aureus, which we have termed the quinone-sensing and response repressor (QsrR). We also identify and confirm an unprecedented quinone-sensing mechanism based on the S-quinonization of the essential residue Cys-5. Structural characterizations of the QsrR-DNA and QsrR-menadione complexes further reveal that the covalent association of menadione directly leads to the release of QsrR from operator DNA following a 10 degrees rigid-body rotation as well as a 9-A elongation between the dimeric subunits. The molecular level characterization of this quinone-sensing transcriptional regulator provides critical insights into quinone-mediated gene regulation in human pathogens. | ||
| - | + | Molecular mechanism of quinone signaling mediated through S-quinonization of a YodB family repressor QsrR.,Ji Q, Zhang L, Jones MB, Sun F, Deng X, Liang H, Cho H, Brugarolas P, Gao YN, Peterson SN, Lan L, Bae T, He C Proc Natl Acad Sci U S A. 2013 Mar 26;110(13):5010-5. doi:, 10.1073/pnas.1219446110. Epub 2013 Mar 11. PMID:23479646<ref>PMID:23479646</ref> | |
| - | + | ||
| - | == | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> |
| - | + | </div> | |
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
[[Category: Staphylococcus aureus]] | [[Category: Staphylococcus aureus]] | ||
| - | [[Category: He, C | + | [[Category: He, C]] |
| - | [[Category: Ji, Q | + | [[Category: Ji, Q]] |
| - | [[Category: Zhang, L | + | [[Category: Zhang, L]] |
[[Category: Dna]] | [[Category: Dna]] | ||
[[Category: Transcription-dna complex]] | [[Category: Transcription-dna complex]] | ||
[[Category: Transcriptional regulator]] | [[Category: Transcriptional regulator]] | ||
Revision as of 12:51, 4 January 2015
The crystal structure of QsrR-DNA complex
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