5n0c: Difference between revisions
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==Crystal structure of the tetanus neurotoxin in complex with GM1a== | ==Crystal structure of the tetanus neurotoxin in complex with GM1a== | ||
<StructureSection load='5n0c' size='340' side='right' caption='[[5n0c]], [[Resolution|resolution]] 2.60Å' scene=''> | <StructureSection load='5n0c' size='340' side='right'caption='[[5n0c]], [[Resolution|resolution]] 2.60Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[5n0c]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5N0C OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[5n0c]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Clostridium_tetani Clostridium tetani]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5N0C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5N0C FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BGC:BETA-D-GLUCOSE'>BGC</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=NGA:N-ACETYL-D-GALACTOSAMINE'>NGA</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=SIA:O-SIALIC+ACID'>SIA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BGC:BETA-D-GLUCOSE'>BGC</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=NGA:N-ACETYL-D-GALACTOSAMINE'>NGA</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=SIA:O-SIALIC+ACID'>SIA</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'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5n0c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5n0c OCA], [https://pdbe.org/5n0c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5n0c RCSB], [https://www.ebi.ac.uk/pdbsum/5n0c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5n0c ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/TETX_CLOTE TETX_CLOTE] Tetanus toxin acts by inhibiting neurotransmitter release. It binds to peripheral neuronal synapses, is internalized and moves by retrograde transport up the axon into the spinal cord where it can move between postsynaptic and presynaptic neurons. It inhibits neurotransmitter release by acting as a zinc endopeptidase that catalyzes the hydrolysis of the '76-Gln-|-Phe-77' bond of synaptobrevin-2. | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Clostridium tetani]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Conrad J]] | ||
[[Category: | [[Category: Masuyer G]] | ||
[[Category: | [[Category: Stenmark P]] | ||
Latest revision as of 20:55, 8 November 2023
Crystal structure of the tetanus neurotoxin in complex with GM1aCrystal structure of the tetanus neurotoxin in complex with GM1a
Structural highlights
FunctionTETX_CLOTE Tetanus toxin acts by inhibiting neurotransmitter release. It binds to peripheral neuronal synapses, is internalized and moves by retrograde transport up the axon into the spinal cord where it can move between postsynaptic and presynaptic neurons. It inhibits neurotransmitter release by acting as a zinc endopeptidase that catalyzes the hydrolysis of the '76-Gln-|-Phe-77' bond of synaptobrevin-2. Publication Abstract from PubMedThe tetanus neurotoxin (TeNT) is a highly potent toxin produced by Clostridium tetani that inhibits neurotransmission of inhibitory interneurons, causing spastic paralysis in the tetanus disease. TeNT differs from the other clostridial neurotoxins by its unique ability to target the central nervous system by retrograde axonal transport. The crystal structure of the tetanus toxin reveals a "closed" domain arrangement stabilised by two disulphide bridges, and the molecular details of the toxin's interaction with its polysaccharide receptor. An integrative analysis combining X-ray crystallography, solution scattering and single particle electron cryo-microscopy reveals pH-mediated domain rearrangements that may give TeNT the ability to adapt to the multiple environments encountered during intoxication, and facilitate binding to distinct receptors. The structure of the tetanus toxin reveals pH-mediated domain dynamics.,Masuyer G, Conrad J, Stenmark P EMBO Rep. 2017 Aug;18(8):1306-1317. doi: 10.15252/embr.201744198. Epub 2017 Jun, 23. PMID:28645943[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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