1xt3
From Proteopedia
(Difference between revisions)
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<StructureSection load='1xt3' size='340' side='right'caption='[[1xt3]], [[Resolution|resolution]] 2.40Å' scene=''> | <StructureSection load='1xt3' size='340' side='right'caption='[[1xt3]], [[Resolution|resolution]] 2.40Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
- | <table><tr><td colspan='2'>[[1xt3]] is a 2 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[1xt3]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Naja_atra Naja atra]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XT3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XT3 FirstGlance]. <br> |
- | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=IDS:2-O-SULFO-ALPHA-L-IDOPYRANURONIC+ACID'>IDS</scene>, <scene name='pdbligand=SGN:N,O6-DISULFO-GLUCOSAMINE'>SGN</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=IDS:2-O-SULFO-ALPHA-L-IDOPYRANURONIC+ACID'>IDS</scene>, <scene name='pdbligand=SGN:N,O6-DISULFO-GLUCOSAMINE'>SGN</scene></td></tr> |
- | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1xt3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xt3 OCA], [https://pdbe.org/1xt3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xt3 RCSB], [https://www.ebi.ac.uk/pdbsum/1xt3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xt3 ProSAT]</span></td></tr> |
</table> | </table> | ||
== Function == | == Function == | ||
- | [[ | + | [[https://www.uniprot.org/uniprot/3SA3_NAJAT 3SA3_NAJAT]] Basic protein that binds to cell membrane and depolarizes cardiomyocytes. This cytotoxin also possesses lytic activity on many other cells, including red blood cells (PubMed:8182052). Interaction with sulfatides in the cell membrane induces pore formation and cell internalization. Cytotoxicity is due to pore formation, and to another mechanism independent of membrane-damaging activity. When internalized, it targets the mitochondrial membrane and induces mitochondrial swelling and fragmentation. It inhibits protein kinases C. It binds to the integrin alpha-V/beta-3 (ITGAV/ITGB3) with a moderate affinity (PubMed:16407244). It also binds with high affinity to heparin (PubMed:17685633).<ref>PMID:15922335</ref> <ref>PMID:16263708</ref> <ref>PMID:16407244</ref> <ref>PMID:17714752</ref> <ref>PMID:8182052</ref> <ref>PMID:8448165</ref> <ref>PMID:9245415</ref> |
== 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: Chinese cobra]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
+ | [[Category: Naja atra]] | ||
[[Category: Chen, C J]] | [[Category: Chen, C J]] | ||
[[Category: Guan, H H]] | [[Category: Guan, H H]] |
Revision as of 09:06, 21 April 2021
Structure Basis of Venom Citrate-Dependent Heparin Sulfate-Mediated Cell Surface Retention of Cobra Cardiotoxin A3
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Categories: Large Structures | Naja atra | Chen, C J | Guan, H H | Huang, W N | Lee, S C | Wang, C H | Wu, W G | Citrate | Ctx-3 | Heparin | Toxin