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==THE HC FRAGMENT OF TETANUS TOXIN COMPLEXED WITH GALACTOSE==
==THE HC FRAGMENT OF TETANUS TOXIN COMPLEXED WITH GALACTOSE==
<StructureSection load='1diw' size='340' side='right' caption='[[1diw]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
<StructureSection load='1diw' size='340' side='right'caption='[[1diw]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1diw]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Clostridium_tetani Clostridium tetani]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DIW OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1DIW FirstGlance]. <br>
<table><tr><td colspan='2'>[[1diw]] is a 1 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=1DIW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1DIW FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene><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&#8491;</td></tr>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1af9|1af9]], [[1a8d|1a8d]], [[1dfq|1dfq]]</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></td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Tentoxilysin Tentoxilysin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.24.68 3.4.24.68] </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=1diw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1diw OCA], [https://pdbe.org/1diw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1diw RCSB], [https://www.ebi.ac.uk/pdbsum/1diw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1diw ProSAT]</span></td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1diw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1diw OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1diw RCSB], [http://www.ebi.ac.uk/pdbsum/1diw PDBsum]</span></td></tr>
</table>
<table>
== 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.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/di/1diw_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/di/1diw_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
   </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1diw ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The entry of tetanus neurotoxin into neuronal cells proceeds through the initial binding of the toxin to gangliosides on the cell surface. The carboxyl-terminal fragment of the heavy chain of tetanus neurotoxin contains the ganglioside-binding site, which has not yet been fully characterized. The crystal structures of native H(C) and of H(C) soaked with carbohydrates reveal a number of binding sites and provide insight into the possible mode of ganglioside binding.
The structures of the H(C) fragment of tetanus toxin with carbohydrate subunit complexes provide insight into ganglioside binding.,Emsley P, Fotinou C, Black I, Fairweather NF, Charles IG, Watts C, Hewitt E, Isaacs NW J Biol Chem. 2000 Mar 24;275(12):8889-94. PMID:10722735<ref>PMID:10722735</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>


==See Also==
==See Also==
*[[Tetanus toxin|Tetanus toxin]]
*[[Tetanus toxin|Tetanus toxin]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Clostridium tetani]]
[[Category: Clostridium tetani]]
[[Category: Tentoxilysin]]
[[Category: Large Structures]]
[[Category: Black, I.]]
[[Category: Black I]]
[[Category: Charles, I G.]]
[[Category: Charles IG]]
[[Category: Emsley, P.]]
[[Category: Emsley P]]
[[Category: Fairweather, N F.]]
[[Category: Fairweather NF]]
[[Category: Fotinou, C.]]
[[Category: Fotinou C]]
[[Category: Hewitt, E.]]
[[Category: Hewitt E]]
[[Category: Isaacs, N W.]]
[[Category: Isaacs NW]]
[[Category: Watts, C.]]
[[Category: Watts C]]
[[Category: Beta trefoil]]
[[Category: Jelly-roll]]
[[Category: Toxin]]

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