1m24
From Proteopedia
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1m24]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Trichoderma_viride Trichoderma viride]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M24 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1M24 FirstGlance]. <br> | <table><tr><td colspan='2'>[[1m24]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Trichoderma_viride Trichoderma viride]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M24 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1M24 FirstGlance]. <br> | ||
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=AIB:ALPHA-AMINOISOBUTYRIC+ACID'>AIB</scene>, <scene name='pdbligand=CCN:ACETONITRILE'>CCN</scene>, <scene name='pdbligand=PRD_000160:TRICHOTOXIN+A50E'>PRD_000160</scene>, <scene name='pdbligand=VOL:L-VALINOL'>VOL</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 0.9Å</td></tr> |
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=AIB:ALPHA-AMINOISOBUTYRIC+ACID'>AIB</scene>, <scene name='pdbligand=CCN:ACETONITRILE'>CCN</scene>, <scene name='pdbligand=PRD_000160:TRICHOTOXIN+A50E'>PRD_000160</scene>, <scene name='pdbligand=VOL:L-VALINOL'>VOL</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=1m24 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1m24 OCA], [https://pdbe.org/1m24 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1m24 RCSB], [https://www.ebi.ac.uk/pdbsum/1m24 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1m24 ProSAT]</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=1m24 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1m24 OCA], [https://pdbe.org/1m24 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1m24 RCSB], [https://www.ebi.ac.uk/pdbsum/1m24 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1m24 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | Trichotoxin_A50E is an 18-residue peptaibol antibiotic which forms multimeric transmembrane channels through self-association. The crystal structure of trichotoxin has been determined at a resolution of 0.9 A. The trichotoxin sequence contains nine helix-promoting Aib residues, which contribute to the formation of an entirely helical structure that has a central bend of 8-10 degrees located between residues 10-13. Trichotoxin is the first solved structure of the peptaibol family that is all alpha-helix as opposed to containing part or all 3(10)-helix. Gln residues in positions 6 and 17 produce a polar face, and are proposed to form the channel lumen. An octameric model channel has been constructed from the crystal structure. It has a central pore of approximately 4-5 A radius, a size sufficient to enable transport of ions, with a constricted region at one end, formed by a ring of Gln6 residues. Electrostatic calculations are consistent with it being a cationic channel. | ||
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| - | Model for a helical bundle channel based on the high-resolution crystal structure of trichotoxin_A50E.,Chugh JK, Bruckner H, Wallace BA Biochemistry. 2002 Oct 29;41(43):12934-41. PMID:12390019<ref>PMID:12390019</ref> | ||
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1m24" style="background-color:#fffaf0;"></div> | ||
| - | == References == | ||
| - | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
Current revision
Trichotoxin_A50E, An Ion Channel-Forming Polypeptide
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