View source for 2g0r

==Unphotolyzed CO-bound L29F Myoglobin==
<StructureSection load='2g0r' size='340' side='right' caption='[[2g0r]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2g0r]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Phycd Phycd]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2G0R OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2G0R 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>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9755 PHYCD])</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2g0r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2g0r OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2g0r RCSB], [http://www.ebi.ac.uk/pdbsum/2g0r PDBsum]</span></td></tr>
</table>
== Function ==
[[http://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 ==
[[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/g0/2g0r_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Picosecond time-resolved crystallography was used to follow the dissociation of carbon monoxide from the heme pocket of a mutant sperm whale myoglobin and the resultant conformational changes. Electron-density maps have previously been created at various time points and used to describe amino-acid side-chain and carbon monoxide movements. In this work, difference refinement was employed to generate atomic coordinates at each time point in order to create a more explicit quantitative representation of the photo-dissociation process. After photolysis the carbon monoxide moves to a docking site, causing rearrangements in the heme-pocket residues, the coordinate changes of which can be plotted as a function of time. These include rotations of the heme-pocket phenylalanine concomitant with movement of the distal histidine toward the solvent, potentially allowing carbon monoxide movement in and out of the protein and proximal displacement of the heme iron. The degree of relaxation toward the intermediate and deoxy states was probed by analysis of the coordinate movements in the time-resolved models, revealing a non-linear progression toward the unbound state with coordinate movements that begin in the heme-pocket area and then propagate throughout the rest of the protein.

Time-dependent atomic coordinates for the dissociation of carbon monoxide from myoglobin.,Aranda R 4th, Levin EJ, Schotte F, Anfinrud PA, Phillips GN Jr Acta Crystallogr D Biol Crystallogr. 2006 Jul;62(Pt 7):776-83. Epub 2006, Jun 20. PMID:16790933<ref>PMID:16790933</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>

==See Also==
*[[Myoglobin|Myoglobin]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Phycd]]
[[Category: Anfinrud, P A]]
[[Category: Aranda, R]]
[[Category: Levin, E J]]
[[Category: Phillips, G N]]
[[Category: Schotte, F]]
[[Category: Difference refinement]]
[[Category: Intermediate state]]
[[Category: Myoglobin]]
[[Category: Structure-function relationship]]
[[Category: Time-resolved crystallography]]
[[Category: Transport protein]]