2cab

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[[Image:2cab.gif|left|200px]]<br /><applet load="2cab" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="2cab, resolution 2.0&Aring;" />
 
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'''STRUCTURE, REFINEMENT AND FUNCTION OF CARBONIC ANHYDRASE ISOZYMES. REFINEMENT OF HUMAN CARBONIC ANHYDRASE I'''<br />
 
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==Overview==
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==STRUCTURE, REFINEMENT AND FUNCTION OF CARBONIC ANHYDRASE ISOZYMES. REFINEMENT OF HUMAN CARBONIC ANHYDRASE I==
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The structure of human erythrocyte carbonic anhydrase I has been refined to a final R value of 19% to 2-A resolution by a combination of least squares refinement and model fitting in a three-dimensional graphics display. About 300 solvent atoms have been located bound to the protein molecule. An interesting hydrogen bond network involving Zn2+, the liganded solvent, side chain groups of Thr-199, Glu-106, Thr-7, and His-64 through two solvent molecules have been found that may be important for the catalytic mechanism of the carbonic anhydrase.
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<StructureSection load='2cab' size='340' side='right'caption='[[2cab]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2cab]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1cab 1cab]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CAB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CAB 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]] 2&#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=ZN:ZINC+ION'>ZN</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=2cab FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cab OCA], [https://pdbe.org/2cab PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2cab RCSB], [https://www.ebi.ac.uk/pdbsum/2cab PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2cab ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CAH1_HUMAN CAH1_HUMAN] Reversible hydration of carbon dioxide. Can hydrates cyanamide to urea.<ref>PMID:10550681</ref>
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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/ca/2cab_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=2cab ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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2CAB is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with <scene name='pdbligand=ZN:'>ZN</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. This structure supersedes the now removed PDB entry 1CAB. Active as [http://en.wikipedia.org/wiki/Carbonate_dehydratase Carbonate dehydratase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.1 4.2.1.1] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CAB OCA].
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*[[Carbonic anhydrase 3D structures|Carbonic anhydrase 3D structures]]
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== References ==
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==Reference==
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<references/>
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Structure, refinement, and function of carbonic anhydrase isozymes: refinement of human carbonic anhydrase I., Kannan KK, Ramanadham M, Jones TA, Ann N Y Acad Sci. 1984;429:49-60. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=6430186 6430186]
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__TOC__
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[[Category: Carbonate dehydratase]]
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Jones, T A.]]
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[[Category: Jones TA]]
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[[Category: Kannan, K K.]]
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[[Category: Kannan KK]]
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[[Category: Ramanadham, M.]]
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[[Category: Ramanadham M]]
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[[Category: ZN]]
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[[Category: hydro-lyase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:46:38 2008''
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Current revision

STRUCTURE, REFINEMENT AND FUNCTION OF CARBONIC ANHYDRASE ISOZYMES. REFINEMENT OF HUMAN CARBONIC ANHYDRASE I

PDB ID 2cab

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