4g0c: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4g0c]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4G0C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4G0C FirstGlance]. <br>
<table><tr><td colspan='2'>[[4g0c]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4G0C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4G0C FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AZM:5-ACETAMIDO-1,3,4-THIADIAZOLE-2-SULFONAMIDE'>AZM</scene>, <scene name='pdbligand=DOD:DEUTERATED+WATER'>DOD</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Neutron Diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AZM:5-ACETAMIDO-1,3,4-THIADIAZOLE-2-SULFONAMIDE'>AZM</scene>, <scene name='pdbligand=DOD:DEUTERATED+WATER'>DOD</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4g0c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g0c OCA], [https://pdbe.org/4g0c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4g0c RCSB], [https://www.ebi.ac.uk/pdbsum/4g0c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4g0c ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4g0c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g0c OCA], [https://pdbe.org/4g0c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4g0c RCSB], [https://www.ebi.ac.uk/pdbsum/4g0c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4g0c ProSAT]</span></td></tr>
</table>
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== Function ==
== Function ==
[https://www.uniprot.org/uniprot/CAH2_HUMAN CAH2_HUMAN] Essential for bone resorption and osteoclast differentiation (By similarity). Reversible hydration of carbon dioxide. Can hydrate cyanamide to urea. Involved in the regulation of fluid secretion into the anterior chamber of the eye.<ref>PMID:10550681</ref> <ref>PMID:11831900</ref>  
[https://www.uniprot.org/uniprot/CAH2_HUMAN CAH2_HUMAN] Essential for bone resorption and osteoclast differentiation (By similarity). Reversible hydration of carbon dioxide. Can hydrate cyanamide to urea. Involved in the regulation of fluid secretion into the anterior chamber of the eye.<ref>PMID:10550681</ref> <ref>PMID:11831900</ref>  
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== Publication Abstract from PubMed ==
Carbonic anhydrases (CAs) catalyze the hydration of CO(2) forming HCO(3)(-) and a proton, an important reaction for many physiological processes including respiration, fluid secretion, and pH regulation. As such, CA isoforms are prominent clinical targets for treating various diseases. The clinically used acetazolamide (AZM) is a sulfonamide that binds with high affinity to human CA isoform II (HCA II). There are several X-ray structures available of AZM bound to various CA isoforms, but these complexes do not show the charged state of AZM or the hydrogen atom positions of the protein and solvent. Neutron diffraction is a useful technique for directly observing H atoms and the mapping of H-bonding networks that can greatly contribute to rational drug design. To this end, the neutron structure of H/D exchanged HCA II crystals in complex with AZM was determined. The structure reveals the molecular details of AZM binding and the charged state of the bound drug. This represents the first determined neutron structure of a clinically used drug bound to its target.
Neutron Diffraction of Acetazolamide-Bound Human Carbonic Anhydrase II Reveals Atomic Details of Drug Binding.,Fisher SZ, Aggarwal M, Kovalevsky AY, Silverman DN, McKenna R J Am Chem Soc. 2012 Sep 12;134(36):14726-9. Epub 2012 Sep 4. PMID:22928733<ref>PMID:22928733</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==See Also==
==See Also==

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

OCA