2ara

From Proteopedia

(Difference between revisions)

Revision as of 07:18, 9 May 2018

APO FORM OF ESCHERICHIA COLI REGULATORY PROTEIN ARAC

Structural highlights

2ara is a 1 chain structure with sequence from "bacillus_coli"_migula_1895 "bacillus coli" migula 1895. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	2arc, 2aac, 1xja, 2k9s
Gene:	ARAC ("Bacillus coli" Migula 1895)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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 PubMed

The 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

↑ Soisson SM, MacDougall-Shackleton B, Schleif R, Wolberger C. Structural basis for ligand-regulated oligomerization of AraC. Science. 1997 Apr 18;276(5311):421-5. PMID:9103202

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2ara"

@@ Line 1: / Line 1: @@
 ==APO FORM OF ESCHERICHIA COLI REGULATORY PROTEIN ARAC==
 <StructureSection load='2ara' size='340' side='right' caption='[[2ara]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </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 "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://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>
+<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], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2ara ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ar/2ara_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ar/2ara_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

2ara

From Proteopedia

Revision as of 07:18, 9 May 2018

APO FORM OF ESCHERICHIA COLI REGULATORY PROTEIN ARAC

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox