1aon: Difference between revisions
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1aon]] is a 21 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. The August 2002 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Chaperones'' by David S. Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2002_8 10.2210/rcsb_pdb/mom_2002_8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AON OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1AON FirstGlance]. <br> | <table><tr><td colspan='2'>[[1aon]] is a 21 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. The August 2002 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Chaperones'' by David S. Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2002_8 10.2210/rcsb_pdb/mom_2002_8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AON OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1AON FirstGlance]. <br> | ||
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>< | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | ||
<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">GROE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</td></tr> | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">GROE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</td></tr> | ||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1aon FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1aon OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1aon RCSB], [http://www.ebi.ac.uk/pdbsum/1aon 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=1aon FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1aon OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1aon RCSB], [http://www.ebi.ac.uk/pdbsum/1aon PDBsum]</span></td></tr> | ||
<table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
[[Category: RCSB PDB Molecule of the Month]] | [[Category: RCSB PDB Molecule of the Month]] | ||
[[Category: Horwich, A L | [[Category: Horwich, A L]] | ||
[[Category: Sigler, P B | [[Category: Sigler, P B]] | ||
[[Category: Xu, Z | [[Category: Xu, Z]] | ||
[[Category: Chaperonin assisted protein folding]] | [[Category: Chaperonin assisted protein folding]] | ||
Revision as of 07:34, 24 November 2014
CRYSTAL STRUCTURE OF THE ASYMMETRIC CHAPERONIN COMPLEX GROEL/GROES/(ADP)7CRYSTAL STRUCTURE OF THE ASYMMETRIC CHAPERONIN COMPLEX GROEL/GROES/(ADP)7
Structural highlights
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 PubMedChaperonins assist protein folding with the consumption of ATP. They exist as multi-subunit protein assemblies comprising rings of subunits stacked back to back. In Escherichia coli, asymmetric intermediates of GroEL are formed with the co-chaperonin GroES and nucleotides bound only to one of the seven-subunit rings (the cis ring) and not to the opposing ring (the trans ring). The structure of the GroEL-GroES-(ADP)7 complex reveals how large en bloc movements of the cis ring's intermediate and apical domains enable bound GroES to stabilize a folding chamber with ADP confined to the cis ring. Elevation and twist of the apical domains double the volume of the central cavity and bury hydrophobic peptide-binding residues in the interface with GroES, as well as between GroEL subunits, leaving a hydrophilic cavity lining that is conducive to protein folding. An inward tilt of the cis equatorial domain causes an outward tilt in the trans ring that opposes the binding of a second GroES. When combined with new functional results, this negative allosteric mechanism suggests a model for an ATP-driven folding cycle that requires a double toroid. The crystal structure of the asymmetric GroEL-GroES-(ADP)7 chaperonin complex.,Xu Z, Horwich AL, Sigler PB Nature. 1997 Aug 21;388(6644):741-50. PMID:9285585[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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