1zv1: Difference between revisions
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==Crystal structure of the dimerization domain of doublesex protein from D. melanogaster== | ==Crystal structure of the dimerization domain of doublesex protein from D. melanogaster== | ||
<StructureSection load='1zv1' size='340' side='right' caption='[[1zv1]], [[Resolution|resolution]] 1.60Å' scene=''> | <StructureSection load='1zv1' size='340' side='right' caption='[[1zv1]], [[Resolution|resolution]] 1.60Å' scene=''> | ||
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<table><tr><td colspan='2'>[[1zv1]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Drome Drome]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZV1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZV1 FirstGlance]. <br> | <table><tr><td colspan='2'>[[1zv1]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Drome Drome]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZV1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZV1 FirstGlance]. <br> | ||
</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dsx ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME])</td></tr> | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dsx ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME])</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=1zv1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zv1 OCA], [http://pdbe.org/1zv1 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1zv1 RCSB], [http://www.ebi.ac.uk/pdbsum/1zv1 PDBsum]</span></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=1zv1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zv1 OCA], [http://pdbe.org/1zv1 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1zv1 RCSB], [http://www.ebi.ac.uk/pdbsum/1zv1 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1zv1 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zv/1zv1_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zv/1zv1_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
Revision as of 12:27, 2 May 2018
Crystal structure of the dimerization domain of doublesex protein from D. melanogasterCrystal structure of the dimerization domain of doublesex protein from D. melanogaster
Structural highlights
Function[DSX_DROME] Controls somatic sexual differentiation. Binds directly and specifically to the FBE (fat body enhancer) of the yolk protein 1 and 2 genes (Yp1 and Yp2). This enhancer is sufficient to direct the female-specific transcription characteristic of the Yp genes in adult fat bodies. Involved in regulation of male-specific expression of takeout in brain-associated fat body.[1] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedMale- and female-specific isoforms of the Doublesex (DSX) transcription factor regulate somatic sexual differentiation in Drosophila. The isoforms (DSX(M) and DSX(F)) share an N-terminal DNA binding domain (the DM motif), broadly conserved among metazoan sex-determining pathways. DM-DNA recognition is enhanced by a C-terminal dimerization domain. The crystal structure of this domain, determined at a resolution of 1.6 A, reveals a novel dimeric arrangement of ubiquitin-associated (UBA) folds. Although this alpha-helical motif is well characterized in pathways of DNA repair and subcellular trafficking, to our knowledge this is its first report in a transcription factor. Dimerization is mediated by a non-canonical hydrophobic interface extrinsic to the putative ubiquitin binding surface. Key side chains at this interface, identified by alanine scanning mutagenesis, are conserved among DSX homologs. The mechanism of dimerization is thus unrelated to the low affinity domain swapping observed among ubiquitin-associated CUE domains. The unexpected observation of a ubiquitin-associated fold in DSX extends the repertoire of alpha-helical dimerization elements in transcription factors. The possibility that the ubiquitination machinery participates in the regulation of sexual dimorphism is discussed. Dimerization of doublesex is mediated by a cryptic ubiquitin-associated domain fold: implications for sex-specific gene regulation.,Bayrer JR, Zhang W, Weiss MA J Biol Chem. 2005 Sep 23;280(38):32989-96. Epub 2005 Jul 27. PMID:16049008[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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