5lr0: Difference between revisions

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'''Unreleased structure'''


The entry 5lr0 is ON HOLD
==Binding domain of Botulinum Neurotoxin DC in complex with SialylT==
<StructureSection load='5lr0' size='340' side='right'caption='[[5lr0]], [[Resolution|resolution]] 2.59&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5lr0]] is a 2 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=5LR0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5LR0 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]] 2.59&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=NGA:N-ACETYL-D-GALACTOSAMINE'>NGA</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=5lr0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5lr0 OCA], [https://pdbe.org/5lr0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5lr0 RCSB], [https://www.ebi.ac.uk/pdbsum/5lr0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5lr0 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A5JGM8_CLOBO A5JGM8_CLOBO]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Botulinum neurotoxins (BoNTs), the most potent toxins known, are potential bioterrorism agents. It is well established that all seven serotypes of BoNTs (BoNT/A-G) require complex gangliosides as co-receptors. Here, we report that BoNT/DC, a presumed mosaic toxin between BoNT/D and BoNT/C1, binds and enters efficiently into neurons lacking complex gangliosides and shows no reduction in toxicity in mice deficient in complex gangliosides. The co-crystal structure of BoNT/DC with sialyl-Thomsen-Friedenreich antigen (Sialyl-T) suggests that BoNT/DC recognizes only the sialic acid, but not other moieties in gangliosides. Using liposome flotation assays, we demonstrate that an extended loop in BoNT/DC directly interacts with lipid membranes, and the co-occurring sialic acid binding and loop-membrane interactions mediate the recognition of gangliosides in membranes by BoNT/DC. These findings reveal a unique mechanism for cell membrane recognition and demonstrate that BoNT/DC can use a broad range of sialic acid-containing moieties as co-receptors.


Authors:  
Structural basis for the unique ganglioside and cell membrane recognition mechanism of botulinum neurotoxin DC.,Zhang S, Berntsson RP, Tepp WH, Tao L, Johnson EA, Stenmark P, Dong M Nat Commun. 2017 Nov 21;8(1):1637. doi: 10.1038/s41467-017-01534-z. PMID:29158482<ref>PMID:29158482</ref>


Description:  
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
<div class="pdbe-citations 5lr0" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Botulinum neurotoxin 3D structures|Botulinum neurotoxin 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Clostridium botulinum]]
[[Category: Large Structures]]
[[Category: Berntsson RP-A]]
[[Category: Stenmark P]]

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