This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
3nds
From Proteopedia
(Difference between revisions)
| (4 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| + | |||
==Crystal structure of engineered Naja Nigricollis toxin alpha== | ==Crystal structure of engineered Naja Nigricollis toxin alpha== | ||
| - | <StructureSection load='3nds' size='340' side='right' caption='[[3nds]], [[Resolution|resolution]] 1.20Å' scene=''> | + | <StructureSection load='3nds' size='340' side='right'caption='[[3nds]], [[Resolution|resolution]] 1.20Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[3nds]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3NDS OCA]. For a <b>guided tour on the structure components</b> use [ | + | <table><tr><td colspan='2'>[[3nds]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Naja_pallida Naja pallida]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3NDS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3NDS FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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]] 1.2Å</td></tr> |
| - | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=3nds FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3nds OCA], [https://pdbe.org/3nds PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3nds RCSB], [https://www.ebi.ac.uk/pdbsum/3nds PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3nds ProSAT]</span></td></tr> |
</table> | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/3S11_NAJPA 3S11_NAJPA] Binds with high affinity to muscular nicotinic acetylcholine receptors (nAChRs) (tested on Torpedo marmorata AChR, Kd=0.07 nM) and with low affinity to neuronal alpha-7/CHRNA7 nAChRs (tested on chimeric receptor, Kd=3 uM) and inhibit acetylcholine from binding to the receptor, thereby impairing neuromuscular transmission (PubMed:9305882). Produces peripheral paralysis by blocking neuromuscular transmission at the postsynaptic site.<ref>PMID:9305882</ref> | ||
== 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/nd/3nds_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nd/3nds_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/ | + | </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=3nds ConSurf]. |
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
| Line 25: | Line 28: | ||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
| + | <div class="pdbe-citations 3nds" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: | + | [[Category: Naja pallida]] |
| - | [[Category: | + | [[Category: Drevet P]] |
| - | [[Category: | + | [[Category: Gallopin M]] |
| - | + | [[Category: Gregory G]] | |
| - | [[Category: | + | [[Category: Stura EA]] |
| - | [[Category: | + | [[Category: Vandame M]] |
| - | [[Category: | + | |
| - | + | ||
| - | + | ||
| - | + | ||
Current revision
Crystal structure of engineered Naja Nigricollis toxin alpha
| |||||||||||
