2bwh: Difference between revisions

No edit summary
No edit summary
 
(9 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:2bwh.png|left|200px]]


<!--
==Laue Structure of a Short Lived State of L29W Myoglobin==
The line below this paragraph, containing "STRUCTURE_2bwh", creates the "Structure Box" on the page.
<StructureSection load='2bwh' size='340' side='right'caption='[[2bwh]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[2bwh]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Physeter_catodon Physeter catodon]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BWH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BWH FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9&#8491;</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></td></tr>
{{STRUCTURE_2bwh|  PDB=2bwh  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2bwh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bwh OCA], [https://pdbe.org/2bwh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bwh RCSB], [https://www.ebi.ac.uk/pdbsum/2bwh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bwh ProSAT]</span></td></tr>
</table>
== 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 ==
[[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/bw/2bwh_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=2bwh ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
By using time-resolved x-ray crystallography at room temperature, structural relaxations and ligand migration were examined in myoglobin (Mb) mutant L29W from nanoseconds to seconds after photodissociation of carbon monoxide (CO) from the heme iron by nanosecond laser pulses. The data were analyzed in terms of transient kinetics by fitting trial functions to integrated difference electron density values obtained from select structural moieties, thus allowing a quantitative description of the processes involved. The observed relaxations are linked to other investigations on protein dynamics. At the earliest times, the heme has already completely relaxed into its domed deoxy structure, and there is no photo-dissociated CO visible at the primary docking site. Initial relaxations of larger globin moieties are completed within several hundred nanoseconds. They influence the concomitant migration of photo-dissociated CO to the Xe1 site, where it appears at approximately 300 ns and leaves again at approximately 1.5 ms. The extremely long residence time in Xe1 as compared with wild-type MbCO implies that, in the latter protein, the CO exits the protein from Xe1 predominantly via the distal pocket. A well-defined deligated state is populated between approximately 2 micros and approximately 1 ms; its structure is very similar to the equilibrium deoxy structure. Between 1.5 and 20 ms, no CO is visible in the protein interior; it is either distributed among many sites within the protein or has escaped to the solvent. Finally, recombination at the heme iron occurs after &gt;20 ms.


===LAUE STRUCTURE OF A SHORT LIVED STATE OF L29W MYOGLOBIN===
Ligand migration pathway and protein dynamics in myoglobin: a time-resolved crystallographic study on L29W MbCO.,Schmidt M, Nienhaus K, Pahl R, Krasselt A, Anderson S, Parak F, Nienhaus GU, Srajer V Proc Natl Acad Sci U S A. 2005 Aug 16;102(33):11704-9. Epub 2005 Aug 5. PMID:16085709<ref>PMID:16085709</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
<!--
</div>
The line below this paragraph, {{ABSTRACT_PUBMED_16085709}}, adds the Publication Abstract to the page
<div class="pdbe-citations 2bwh" style="background-color:#fffaf0;"></div>
(as it appears on PubMed at http://www.pubmed.gov), where 16085709 is the PubMed ID number.
-->
{{ABSTRACT_PUBMED_16085709}}
 
==About this Structure==
[[2bwh]] is a 1 chain structure of [[Myoglobin]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BWH OCA].


==See Also==
==See Also==
*[[Myoglobin]]
*[[Myoglobin 3D structures|Myoglobin 3D structures]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:16085709</ref><references group="xtra"/>
__TOC__
[[Category: Anderson, S.]]
</StructureSection>
[[Category: Krasselt, A.]]
[[Category: Large Structures]]
[[Category: Nienhaus, G U.]]
[[Category: Physeter catodon]]
[[Category: Nienhaus, K.]]
[[Category: Anderson S]]
[[Category: Pahl, R.]]
[[Category: Krasselt A]]
[[Category: Parak, F.]]
[[Category: Nienhaus GU]]
[[Category: Schmidt, M.]]
[[Category: Nienhaus K]]
[[Category: Srajer, V.]]
[[Category: Pahl R]]
[[Category: L29w myoglobin]]
[[Category: Parak F]]
[[Category: Laue crystallography]]
[[Category: Schmidt M]]
[[Category: Oxygen transport]]
[[Category: Srajer V]]
[[Category: Time-resolved x-ray structure determination]]

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA