1hbi: Difference between revisions

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[[Image:1hbi.gif|left|200px]]
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{{STRUCTURE_1hbi|  PDB=1hbi  |  SCENE=  }}  
{{STRUCTURE_1hbi|  PDB=1hbi  |  SCENE=  }}  


'''CRYSTAL STRUCTURE OF OXYGENATED SCAPHARCA DIMERIC HEMOGLOBIN AT 1.7 ANGSTROMS RESOLUTION'''
===CRYSTAL STRUCTURE OF OXYGENATED SCAPHARCA DIMERIC HEMOGLOBIN AT 1.7 ANGSTROMS RESOLUTION===




==Overview==
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The crystal structure of the cooperative dimeric hemoglobin from the blood clam Scapharca inaequivalvis has been determined in the oxygenated state and refined to an R-factor of 0.157 at 1.7-A resolution. The structure is very similar to the carbon monoxide-liganded form with subtle differences in ligand binding geometry. Oxygen binds to the heme iron in a bent conformation with Fe-O-O angles of 135 degrees and 150 degrees for the two subunits. These observed angles are lower than the equivalent angles in the carbon monoxide-liganded form and intermediate between the angles observed in structures of oxygenated sperm whale myoglobin and oxygenated human hemoglobin. This third high resolution structure of Scapharca dimeric hemoglobin permits a detailed analysis of the water structure in the highly hydrated interface between subunits.
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==About this Structure==
==About this Structure==
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[[Category: Junior, W E.Royer.]]
[[Category: Junior, W E.Royer.]]
[[Category: Oxygen transport]]
[[Category: Oxygen transport]]
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Revision as of 07:56, 1 July 2008

File:1hbi.png

Template:STRUCTURE 1hbi

CRYSTAL STRUCTURE OF OXYGENATED SCAPHARCA DIMERIC HEMOGLOBIN AT 1.7 ANGSTROMS RESOLUTIONCRYSTAL STRUCTURE OF OXYGENATED SCAPHARCA DIMERIC HEMOGLOBIN AT 1.7 ANGSTROMS RESOLUTION

Template:ABSTRACT PUBMED 7929217

About this StructureAbout this Structure

1HBI is a Single protein structure of sequence from Scapharca inaequivalvis. Full crystallographic information is available from OCA.

ReferenceReference

Crystal structure of oxygenated Scapharca dimeric hemoglobin at 1.7-A resolution., Condon PJ, Royer WE Jr, J Biol Chem. 1994 Oct 14;269(41):25259-67. PMID:7929217

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