4l63
From Proteopedia
(Difference between revisions)
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- | + | ==Apo form of AB5 holotoxin== | |
- | === | + | <StructureSection load='4l63' size='340' side='right' caption='[[4l63]], [[Resolution|resolution]] 1.80Å' scene=''> |
- | + | == Structural highlights == | |
+ | <table><tr><td colspan='2'>[[4l63]] is a 6 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=4L63 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4L63 FirstGlance]. <br> | ||
+ | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EPE:4-(2-HYDROXYETHYL)-1-PIPERAZINE+ETHANESULFONIC+ACID'>EPE</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | ||
+ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ecxA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895]), ecxB ([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=4l63 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4l63 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4l63 RCSB], [http://www.ebi.ac.uk/pdbsum/4l63 PDBsum]</span></td></tr> | ||
+ | </table> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | AB5 toxins are composed of an enzymatic A subunit that disrupts cellular function associated with a pentameric B subunit required for host cell invasion. EcxAB is an AB5 toxin isolated from clinical strains of Escherichia coli classified as part of the cholera family due to B subunit homology. Cholera-group toxins have catalytic ADP-ribosyltransferases as their A subunits, so it was surprising that EcxA did not. We confirmed that EcxAB self-associates as a functional toxin and obtained its structure. EcxAB is a prototypical member of a hybrid AB5 toxin family containing metzincin-type metalloproteases as their active A subunit paired to a cholera-like B subunit. Furthermore, EcxA is distinct from previously characterized proteases and thus founds an AB5-associated metzincin family that we term the toxilysins. EcxAB provides the first observation of conserved B subunit usage across different AB5 toxin families and provides evidence that the intersubunit interface of these toxins is far more permissive than previously supposed. | ||
- | + | EcxAB Is a Founding Member of a New Family of Metalloprotease AB Toxins with a Hybrid Cholera-like B Subunit.,Ng NM, Littler DR, Paton AW, Le Nours J, Rossjohn J, Paton JC, Beddoe T Structure. 2013 Oct 1. pii: S0969-2126(13)00345-6. doi:, 10.1016/j.str.2013.08.024. PMID:24095060<ref>PMID:24095060</ref> | |
- | + | ||
- | == | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> |
- | + | </div> | |
- | [[Category: Beddoe, T | + | == References == |
- | [[Category: Littler, D R | + | <references/> |
- | [[Category: Ng, N M | + | __TOC__ |
- | [[Category: Rossjohn, J | + | </StructureSection> |
+ | [[Category: Bacillus coli migula 1895]] | ||
+ | [[Category: Beddoe, T]] | ||
+ | [[Category: Littler, D R]] | ||
+ | [[Category: Ng, N M]] | ||
+ | [[Category: Rossjohn, J]] | ||
[[Category: Ab5 toxin]] | [[Category: Ab5 toxin]] | ||
[[Category: Cholera-like toxin]] | [[Category: Cholera-like toxin]] |
Revision as of 16:45, 21 December 2014
Apo form of AB5 holotoxin
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Categories: Bacillus coli migula 1895 | Beddoe, T | Littler, D R | Ng, N M | Rossjohn, J | Ab5 toxin | Cholera-like toxin | Gm1 | Hydrolase | Matrix metalloprotease | Ob fold | Pentamer | Protease | Toxilysin | Toxin