1abs: Difference between revisions
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<StructureSection load='1abs' size='340' side='right'caption='[[1abs]], [[Resolution|resolution]] 1.50Å' scene=''> | <StructureSection load='1abs' size='340' side='right'caption='[[1abs]], [[Resolution|resolution]] 1.50Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1abs]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[1abs]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Phycd Phycd]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ABS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ABS FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CMO:CARBON+MONOXIDE'>CMO</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CMO:CARBON+MONOXIDE'>CMO</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</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=1abs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1abs OCA], [https://pdbe.org/1abs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1abs RCSB], [https://www.ebi.ac.uk/pdbsum/1abs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1abs ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/MYG_PHYMC MYG_PHYMC]] Serves as a reserve supply of oxygen and facilitates the movement of oxygen within muscles. | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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==See Also== | ==See Also== | ||
*[[Myoglobin|Myoglobin]] | *[[Myoglobin 3D structures|Myoglobin 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 12:44, 26 May 2021
PHOTOLYSED CARBONMONOXY-MYOGLOBIN AT 20 KPHOTOLYSED CARBONMONOXY-MYOGLOBIN AT 20 K
Structural highlights
Function[MYG_PHYMC] Serves as a reserve supply of oxygen and facilitates the movement of oxygen within muscles. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedMyoglobin is a globular haem protein that reversibly binds ligands such as O2 and CO. Single photons of visible light can break the covalent bond between CO and the haem iron in carbon-monoxy-myoglobin (MbCO) and thus form an unstable intermediate, Mb*CO, with the CO inside the protein. The ensuing rebinding process has been extensively studied as a model for the interplay of dynamics, structure and function in protein reactions. We have used X-ray crystallography at liquid-helium temperatures to determine the structure of Mb*CO to a resolution of 1.5 A. The photodissociated CO lies on top of the haem pyrrole ring C. Comparison with the CO-bound and unligated myoglobin structures reveals that on photodissociation of the CO, the haem 'domes', the iron moves partially out of the haem plane, the iron-proximal histidine bonds is compressed, the F helix is strained and the distal histidine swings towards the outside of the ligand-binding pocket. Crystal structure of photolysed carbonmonoxy-myoglobin.,Schlichting I, Berendzen J, Phillips GN Jr, Sweet RM Nature. 1994 Oct 27;371(6500):808-12. PMID:7935843[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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