1cg5

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[[Image:1cg5.jpg|left|200px]]<br /><applet load="1cg5" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="1cg5, resolution 1.6&Aring;" />
 
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'''DEOXY FORM HEMOGLOBIN FROM DASYATIS AKAJEI'''<br />
 
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==Overview==
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==DEOXY FORM HEMOGLOBIN FROM DASYATIS AKAJEI==
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The three-dimensional structures of the deoxy- and carbonmonoxyhaemoglobin, (Hb) from Dasyatis akajei, a stingray, have been determined at 1.6 and 1.9, A resolution, respectively. This is one of the most distantly related, vertebrate Hbs to human HbA. Both structures resemble the respective forms, of HbA, indicating that the alpha2beta2-type tetramer and the mode of the, quaternary structure change are common to Hbs of jawed vertebrates. Larger, deviations between D. akajei Hb and human HbA are observed in various, parts of the molecule, even in the E and F helices. Significant mutations, and/or conformational changes are also observed around the haems, in the, C-terminal region of the beta subunit, in the alpha1beta2 interface and in, the organic phosphate-binding site of HbA. Despite these structural, differences, the oxygen affinity, haem-haem interaction, Bohr effect and, organic phosphate effect of D. akajei Hb are all only moderately reduced., Compared with human HbA, the overall r.m.s. deviation of main-chain atoms, in the helical regions of bony fish Hbs is smaller than that of D. akajei, Hb.
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<StructureSection load='1cg5' size='340' side='right'caption='[[1cg5]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1cg5]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Hemitrygon_akajei Hemitrygon akajei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CG5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CG5 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.6&#8491;</td></tr>
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<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></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1cg5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cg5 OCA], [https://pdbe.org/1cg5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cg5 RCSB], [https://www.ebi.ac.uk/pdbsum/1cg5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cg5 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/HBA_HEMAK HBA_HEMAK]
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/cg/1cg5_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1cg5 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The three-dimensional structures of the deoxy- and carbonmonoxyhaemoglobin (Hb) from Dasyatis akajei, a stingray, have been determined at 1.6 and 1.9 A resolution, respectively. This is one of the most distantly related vertebrate Hbs to human HbA. Both structures resemble the respective forms of HbA, indicating that the alpha2beta2-type tetramer and the mode of the quaternary structure change are common to Hbs of jawed vertebrates. Larger deviations between D. akajei Hb and human HbA are observed in various parts of the molecule, even in the E and F helices. Significant mutations and/or conformational changes are also observed around the haems, in the C-terminal region of the beta subunit, in the alpha1beta2 interface and in the organic phosphate-binding site of HbA. Despite these structural differences, the oxygen affinity, haem-haem interaction, Bohr effect and organic phosphate effect of D. akajei Hb are all only moderately reduced. Compared with human HbA, the overall r.m.s. deviation of main-chain atoms in the helical regions of bony fish Hbs is smaller than that of D. akajei Hb.
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==About this Structure==
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Structures of the deoxy and CO forms of haemoglobin from Dasyatis akajei, a cartilaginous fish.,Chong KT, Miyazaki G, Morimoto H, Oda Y, Park SY Acta Crystallogr D Biol Crystallogr. 1999 Jul;55(Pt 7):1291-300. PMID:10393295<ref>PMID:10393295</ref>
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1CG5 is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Dasyatis_akajei Dasyatis akajei] with <scene name='pdbligand=HEM:'>HEM</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CG5 OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Structures of the deoxy and CO forms of haemoglobin from Dasyatis akajei, a cartilaginous fish., Chong KT, Miyazaki G, Morimoto H, Oda Y, Park SY, Acta Crystallogr D Biol Crystallogr. 1999 Jul;55(Pt 7):1291-300. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10393295 10393295]
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</div>
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[[Category: Dasyatis akajei]]
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<div class="pdbe-citations 1cg5" style="background-color:#fffaf0;"></div>
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[[Category: Protein complex]]
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[[Category: Chong, K.T.]]
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[[Category: Morimoto, H.]]
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[[Category: HEM]]
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[[Category: oxygen transport]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri Feb 15 15:35:43 2008''
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==See Also==
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*[[Hemoglobin 3D structures|Hemoglobin 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Hemitrygon akajei]]
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[[Category: Large Structures]]
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[[Category: Chong KT]]
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[[Category: Morimoto H]]

Current revision

DEOXY FORM HEMOGLOBIN FROM DASYATIS AKAJEI

PDB ID 1cg5

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