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3wvl
From Proteopedia
(Difference between revisions)
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| - | ''' | + | ==Crystal structure of the football-shaped GroEL-GroES complex (GroEL: GroES2:ATP14) from Escherichia coli== |
| + | <StructureSection load='3wvl' size='340' side='right' caption='[[3wvl]], [[Resolution|resolution]] 3.79Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3wvl]] is a 28 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WVL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WVL FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | ||
| + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Chaperonin_ATPase Chaperonin ATPase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.4.9 3.6.4.9] </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=3wvl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wvl OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3wvl RCSB], [http://www.ebi.ac.uk/pdbsum/3wvl PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/CH60_ECOLI CH60_ECOLI]] Prevents misfolding and promotes the refolding and proper assembly of unfolded polypeptides generated under stress conditions.[HAMAP-Rule:MF_00600] Essential for the growth of the bacteria and the assembly of several bacteriophages. Also plays a role in coupling between replication of the F plasmid and cell division of the cell.[HAMAP-Rule:MF_00600] [[http://www.uniprot.org/uniprot/CH10_ECOLI CH10_ECOLI]] Binds to Cpn60 in the presence of Mg-ATP and suppresses the ATPase activity of the latter.[HAMAP-Rule:MF_00580] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The chaperonin GroEL is an essential chaperone that assists in protein folding with the aid of GroES and ATP. GroEL forms a double-ring structure, and both rings can bind GroES in the presence of ATP. Recent progress on the GroEL mechanism has revealed the importance of a symmetric 1:2 GroEL:GroES2 complex (the "football"-shaped complex) as a critical intermediate during the functional GroEL cycle. We determined the crystal structure of the football GroEL:GroES2-ATP14 complex from Escherichia coli at 3.8A, using a GroEL mutant that is extremely defective in ATP hydrolysis. The overall structure of the football complex resembled the GroES-bound GroEL ring of the asymmetric 1:1 GroEL:GroES complex (the "bullet" complex). However, the two GroES-bound GroEL rings form a modified interface by an ~7 degrees rotation about the 7-fold axis. As a result, the inter-ring contacts between the two GroEL rings in the football complex differed from those in the bullet complex. The differences provide a structural basis for the apparently impaired inter-ring negative cooperativity observed in several biochemical analyses. | ||
| - | + | Crystal structure of a symmetric football-shaped GroEL:GroES2-ATP14 complex determined at 3.8A reveals rearrangement between two GroEL rings.,Koike-Takeshita A, Arakawa T, Taguchi H, Shimamura T J Mol Biol. 2014 Oct 23;426(21):3634-41. doi: 10.1016/j.jmb.2014.08.017. Epub, 2014 Aug 28. PMID:25174333<ref>PMID:25174333</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | == References == | |
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Chaperonin ATPase]] | ||
| + | [[Category: Arakawa, T]] | ||
| + | [[Category: Koike-Takeshita, A]] | ||
| + | [[Category: Shimamura, T]] | ||
| + | [[Category: Taguchi, H]] | ||
| + | [[Category: Atp hydrolysis]] | ||
| + | [[Category: Denaturing protein]] | ||
| + | [[Category: Hydrolase]] | ||
| + | [[Category: Protein folding]] | ||
Revision as of 12:49, 5 January 2015
Crystal structure of the football-shaped GroEL-GroES complex (GroEL: GroES2:ATP14) from Escherichia coli
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