2ara: Difference between revisions
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<StructureSection load='2ara' size='340' side='right' caption='[[2ara]], [[Resolution|resolution]] 2.80Å' scene=''> | <StructureSection load='2ara' size='340' side='right' caption='[[2ara]], [[Resolution|resolution]] 2.80Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2ara]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[2ara]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ARA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ARA FirstGlance]. <br> | ||
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2arc|2arc]], [[2aac|2aac]], [[1xja|1xja]], [[2k9s|2k9s]]</td></tr> | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2arc|2arc]], [[2aac|2aac]], [[1xja|1xja]], [[2k9s|2k9s]]</td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ARAC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ARAC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895])</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=2ara FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ara OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2ara RCSB], [http://www.ebi.ac.uk/pdbsum/2ara 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=2ara FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ara OCA], [http://pdbe.org/2ara PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2ara RCSB], [http://www.ebi.ac.uk/pdbsum/2ara PDBsum]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 2ara" style="background-color:#fffaf0;"></div> | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Bacillus coli migula 1895]] | ||
[[Category: Soisson, S M]] | [[Category: Soisson, S M]] | ||
[[Category: Wolberger, C]] | [[Category: Wolberger, C]] | ||
Revision as of 15:56, 10 September 2015
APO FORM OF ESCHERICHIA COLI REGULATORY PROTEIN ARACAPO FORM OF ESCHERICHIA COLI REGULATORY PROTEIN ARAC
Structural highlights
Function[ARAC_ECOLI] This protein controls the expression of at least six genes that are involved in the transport and catabolism of L-arabinose. It regulates initiation of transcription of the araBAD operon and it also controls its own synthesis. The L-arabinose operon displays both positive and negative regulation through AraC. 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 PubMedThe crystal structure of the arabinose-binding and dimerization domain of the Escherchia coli gene regulatory protein AraC was determined in the presence and absence of L-arabinose. The 1.5 angstrom structure of the arabinose-bound molecule shows that the protein adopts an unusual fold, binding sugar within a beta barrel and completely burying the arabinose with the amino-terminal arm of the protein. Dimer contacts in the presence of arabinose are mediated by an antiparallel coiled-coil. In the 2.8 angstrom structure of the uncomplexed protein, the amino-terminal arm is disordered, uncovering the sugar-binding pocket and allowing it to serve as an oligomerization interface. The ligand-gated oligomerization as seen in AraC provides the basis of a plausible mechanism for modulating the protein's DNA-looping properties. Structural basis for ligand-regulated oligomerization of AraC.,Soisson SM, MacDougall-Shackleton B, Schleif R, Wolberger C Science. 1997 Apr 18;276(5311):421-5. PMID:9103202[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
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