1ca1
From Proteopedia
(Difference between revisions)
| Line 4: | Line 4: | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1ca1]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Clostridium_perfringens Clostridium perfringens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CA1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CA1 FirstGlance]. <br> | <table><tr><td colspan='2'>[[1ca1]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Clostridium_perfringens Clostridium perfringens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CA1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CA1 FirstGlance]. <br> | ||
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CD:CADMIUM+ION'>CD</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9Å</td></tr> |
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CD:CADMIUM+ION'>CD</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ca1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ca1 OCA], [https://pdbe.org/1ca1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ca1 RCSB], [https://www.ebi.ac.uk/pdbsum/1ca1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ca1 ProSAT]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ca1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ca1 OCA], [https://pdbe.org/1ca1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ca1 RCSB], [https://www.ebi.ac.uk/pdbsum/1ca1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ca1 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| Line 19: | Line 20: | ||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1ca1 ConSurf]. | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1ca1 ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | Clostridium perfringens alpha-toxin is the key virulence determinant in gas gangrene and has also been implicated in the pathogenesis of sudden death syndrome in young animals. The toxin is a 370-residue, zinc metalloenzyme that has phospholipase C activity, and can bind to membranes in the presence of calcium. The crystal structure of the enzyme reveals a two-domain protein. The N-terminal domain shows an anticipated structural similarity to Bacillus cereus phosphatidylcholine-specific phospholipase C (PC-PLC). The C-terminal domain shows a strong structural analogy to eukaryotic calcium-binding C2 domains. We believe this is the first example of such a domain in prokaryotes. This type of domain has been found to act as a phospholipid and/or calcium-binding domain in intracellular second messenger proteins and, interestingly, these pathways are perturbed in cells treated with alpha-toxin. Finally, a possible mechanism for alpha-toxin attack on membrane-packed phospholipid is described, which rationalizes its toxicity when compared to other, non-haemolytic, but homologous phospholipases C. | ||
| - | |||
| - | Structure of the key toxin in gas gangrene.,Naylor CE, Eaton JT, Howells A, Justin N, Moss DS, Titball RW, Basak AK Nat Struct Biol. 1998 Aug;5(8):738-46. PMID:9699639<ref>PMID:9699639</ref> | ||
| - | |||
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1ca1" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
*[[Hemolysin 3D structures|Hemolysin 3D structures]] | *[[Hemolysin 3D structures|Hemolysin 3D structures]] | ||
*[[Phospholipase C|Phospholipase C]] | *[[Phospholipase C|Phospholipase C]] | ||
| - | == References == | ||
| - | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
Current revision
ALPHA-TOXIN FROM CLOSTRIDIUM PERFRINGENS
| |||||||||||
