1aes
From Proteopedia
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- | [[Image:1aes.png|left|200px]] | ||
- | + | ==SPECIFICITY OF LIGAND BINDING TO A BURIED POLAR CAVITY AT THE ACTIVE SITE OF CYTOCHROME C PEROXIDASE (IMIDAZOLE)== | |
+ | <StructureSection load='1aes' size='340' side='right'caption='[[1aes]], [[Resolution|resolution]] 2.10Å' scene=''> | ||
+ | == Structural highlights == | ||
+ | <table><tr><td colspan='2'>[[1aes]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AES OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1AES 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]] 2.1Å</td></tr> | ||
+ | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=IMD:IMIDAZOLE'>IMD</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=1aes FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1aes OCA], [https://pdbe.org/1aes PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1aes RCSB], [https://www.ebi.ac.uk/pdbsum/1aes PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1aes ProSAT]</span></td></tr> | ||
+ | </table> | ||
+ | == Function == | ||
+ | [https://www.uniprot.org/uniprot/CCPR_YEAST CCPR_YEAST] Destroys radicals which are normally produced within the cells and which are toxic to biological systems. | ||
+ | == Evolutionary Conservation == | ||
+ | [[Image:Consurf_key_small.gif|200px|right]] | ||
+ | Check<jmol> | ||
+ | <jmolCheckbox> | ||
+ | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ae/1aes_consurf.spt"</scriptWhenChecked> | ||
+ | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
+ | <text>to colour the structure by Evolutionary Conservation</text> | ||
+ | </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/main_output.php?pdb_ID=1aes ConSurf]. | ||
+ | <div style="clear:both"></div> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | Conformational changes that gate the access of substrates or ligands to an active site are important features of enzyme function. In this report, we describe an unusual example of a structural rearrangement near a buried artificial cavity in cytochrome c peroxidase that occurs on binding protonated benzimidazole. A hinged main-chain rotation at two residues (Pro 190 and Asn 195) results in a surface loop rearrangement that opens a large solvent-accessible channel for the entry of ligands to an otherwise inaccessible binding site. The trapping of this alternate conformational state provides a unique view of the extent to which protein dynamics can allow small molecule penetration into buried protein cavities. | ||
- | + | A ligand-gated, hinged loop rearrangement opens a channel to a buried artificial protein cavity.,Fitzgerald MM, Musah RA, McRee DE, Goodin DB Nat Struct Biol. 1996 Jul;3(7):626-31. PMID:8673607<ref>PMID:8673607</ref> | |
- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | + | </div> | |
- | + | <div class="pdbe-citations 1aes" style="background-color:#fffaf0;"></div> | |
- | + | ||
==See Also== | ==See Also== | ||
- | *[[Cytochrome c peroxidase|Cytochrome c peroxidase]] | + | *[[Cytochrome c peroxidase 3D structures|Cytochrome c peroxidase 3D structures]] |
- | + | == References == | |
- | == | + | <references/> |
- | < | + | __TOC__ |
- | [[Category: | + | </StructureSection> |
+ | [[Category: Large Structures]] | ||
[[Category: Saccharomyces cerevisiae]] | [[Category: Saccharomyces cerevisiae]] | ||
- | [[Category: Fitzgerald | + | [[Category: Fitzgerald MM]] |
- | [[Category: Goodin | + | [[Category: Goodin DB]] |
- | [[Category: Jensen | + | [[Category: Jensen GM]] |
- | [[Category: Mcree | + | [[Category: Mcree DE]] |
- | [[Category: Musah | + | [[Category: Musah RA]] |
- | + | ||
- | + | ||
- | + |
Current revision
SPECIFICITY OF LIGAND BINDING TO A BURIED POLAR CAVITY AT THE ACTIVE SITE OF CYTOCHROME C PEROXIDASE (IMIDAZOLE)
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