1s5c: Difference between revisions

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<StructureSection load='1s5c' size='340' side='right'caption='[[1s5c]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
<StructureSection load='1s5c' size='340' side='right'caption='[[1s5c]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1s5c]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/"bacillo_virgola_del_koch"_trevisan_1884 "bacillo virgola del koch" trevisan 1884]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S5C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1S5C FirstGlance]. <br>
<table><tr><td colspan='2'>[[1s5c]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Vibrio_cholerae Vibrio cholerae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S5C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1S5C FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NA:SODIUM+ION'>NA</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]] 2.5&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1xtc|1xtc]], [[1lts|1lts]], [[1ltg|1ltg]], [[1lta|1lta]]</div></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CTXA, TOXA, VC1457 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=666 "Bacillo virgola del Koch" Trevisan 1884]), CTXB, TOXB, VC1456 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=666 "Bacillo virgola del Koch" Trevisan 1884])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/NAD(+)--diphthamide_ADP-ribosyltransferase NAD(+)--diphthamide ADP-ribosyltransferase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.36 2.4.2.36] </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=1s5c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1s5c OCA], [https://pdbe.org/1s5c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1s5c RCSB], [https://www.ebi.ac.uk/pdbsum/1s5c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1s5c 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=1s5c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1s5c OCA], [https://pdbe.org/1s5c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1s5c RCSB], [https://www.ebi.ac.uk/pdbsum/1s5c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1s5c ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/CHTA_VIBCH CHTA_VIBCH]] The A1 chain catalyzes the ADP-ribosylation of Gs alpha, a GTP-binding regulatory protein, to activate the adenylate cyclase. This leads to an overproduction of cAMP and eventually to a hypersecretion of chloride and bicarbonate followed by water, resulting in the characteristic cholera stool. The A2 chain tethers A1 to the pentameric ring. [[https://www.uniprot.org/uniprot/CHTB_VIBCH CHTB_VIBCH]] The B subunit pentameric ring directs the A subunit to its target by binding to the GM1 gangliosides present on the surface of the intestinal epithelial cells. It can bind five GM1 gangliosides. It has no toxic activity by itself.  
[https://www.uniprot.org/uniprot/CHTA_VIBCH CHTA_VIBCH] The A1 chain catalyzes the ADP-ribosylation of Gs alpha, a GTP-binding regulatory protein, to activate the adenylate cyclase. This leads to an overproduction of cAMP and eventually to a hypersecretion of chloride and bicarbonate followed by water, resulting in the characteristic cholera stool. The A2 chain tethers A1 to the pentameric ring.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacillo virgola del koch trevisan 1884]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Amaya, E I]]
[[Category: Vibrio cholerae]]
[[Category: Hol, W G]]
[[Category: Amaya EI]]
[[Category: Holmes, R K]]
[[Category: Hol WG]]
[[Category: Jobling, M G]]
[[Category: Holmes RK]]
[[Category: Neal, C J.O]]
[[Category: Jobling MG]]
[[Category: Ab5 toxin]]
[[Category: O'Neal CJ]]
[[Category: Adp ribose transferase]]
[[Category: Cholera toxin]]
[[Category: Heat-labile enterotoxin]]
[[Category: Toxin]]
[[Category: Transferase]]

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