6thy: Difference between revisions
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==Botulinum neurotoxin A3 Hc domain in complex with GD1a== | |||
<StructureSection load='6thy' size='340' side='right'caption='[[6thy]], [[Resolution|resolution]] 1.75Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[6thy]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Clostridium_botulinum Clostridium botulinum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6THY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6THY FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.75Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=BGC:BETA-D-GLUCOSE'>BGC</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=NGA:N-ACETYL-D-GALACTOSAMINE'>NGA</scene>, <scene name='pdbligand=P6G:HEXAETHYLENE+GLYCOL'>P6G</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=SIA:O-SIALIC+ACID'>SIA</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=6thy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6thy OCA], [https://pdbe.org/6thy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6thy RCSB], [https://www.ebi.ac.uk/pdbsum/6thy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6thy ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/Q3LRX9_CLOBO Q3LRX9_CLOBO] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Botulinum neurotoxins (BoNTs) are one of the most toxic proteins known to humans. Their molecular structure is comprised of three essential domains - a cell binding domain (HC ), translocation domain (HN ), and catalytic domain (LC). The HC domain facilitates the highly specific binding of BoNTs to the neuronal membrane via a dual-receptor complex involving a protein receptor and a ganglioside. Variation in activity/toxicity across subtypes of serotype A has been attributed to changes in protein and ganglioside interactions and their implications are important in the design of novel BoNT-based therapeutics. Here, we present the structure of BoNT/A3 cell binding domain (HC /A3) in complex with the ganglioside GD1a at 1.75 A resolution. The structure revealed that six residues interact with the three outermost monosaccharides of GD1a through several key hydrogen bonding interactions. A detailed comparison of structures of HC /A3 with HC /A1 revealed subtle conformational differences at the ganglioside binding site (GBS) upon carbohydrate binding. | |||
Crystal structure of botulinum neurotoxin subtype A3 cell binding domain in complex with GD1a co-receptor ganglioside.,Gregory KS, Liu SM, Acharya KR FEBS Open Bio. 2020 Jan 16. doi: 10.1002/2211-5463.12790. PMID:31945264<ref>PMID:31945264</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 6thy" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Clostridium botulinum]] | |||
[[Category: Large Structures]] | |||
[[Category: Acharya KR]] | |||
[[Category: Gregory KS]] | |||
[[Category: Liu SM]] | |||
