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| | <StructureSection load='6rqu' size='340' side='right'caption='[[6rqu]], [[Resolution|resolution]] 1.39Å' scene=''> | | <StructureSection load='6rqu' size='340' side='right'caption='[[6rqu]], [[Resolution|resolution]] 1.39Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6rqu]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6RQU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6RQU FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6rqu]] 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=6RQU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6RQU FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</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">X-ray diffraction, [[Resolution|Resolution]] 1.393Å</td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[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] </span></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</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'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6rqu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6rqu OCA], [http://pdbe.org/6rqu PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6rqu RCSB], [http://www.ebi.ac.uk/pdbsum/6rqu PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6rqu 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=6rqu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6rqu OCA], [https://pdbe.org/6rqu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6rqu RCSB], [https://www.ebi.ac.uk/pdbsum/6rqu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6rqu ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/CAH9_HUMAN CAH9_HUMAN]] Reversible hydration of carbon dioxide. Participates in pH regulation. May be involved in the control of cell proliferation and transformation. Appears to be a novel specific biomarker for a cervical neoplasia.<ref>PMID:18703501</ref> | + | [https://www.uniprot.org/uniprot/CAH9_HUMAN CAH9_HUMAN] Reversible hydration of carbon dioxide. Participates in pH regulation. May be involved in the control of cell proliferation and transformation. Appears to be a novel specific biomarker for a cervical neoplasia.<ref>PMID:18703501</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </div> | | </div> |
| | <div class="pdbe-citations 6rqu" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 6rqu" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[Carbonic anhydrase 3D structures|Carbonic anhydrase 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Carbonate dehydratase]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Fisher, Z]] | + | [[Category: Fisher Z]] |
| - | [[Category: Koruza, K]] | + | [[Category: Koruza K]] |
| - | [[Category: Ca ix]]
| + | |
| - | [[Category: Carbonic anhydrase]]
| + | |
| - | [[Category: Proton transport]]
| + | |
| - | [[Category: Surface variant]]
| + | |
| Structural highlights
Function
CAH9_HUMAN Reversible hydration of carbon dioxide. Participates in pH regulation. May be involved in the control of cell proliferation and transformation. Appears to be a novel specific biomarker for a cervical neoplasia.[1]
Publication Abstract from PubMed
Human carbonic anhydrase IX (CA IX) expression is upregulated in hypoxic solid tumours, promoting cell survival and metastasis. This observation has made CA IX a target for the development of CA isoform-selective inhibitors. To enable structural studies of CA IX-inhibitor complexes using X-ray and neutron crystallography, a CA IX surface variant (CA IXSV; the catalytic domain with six surface amino-acid substitutions) has been developed that can be routinely crystallized. Here, the preparation of protiated (H/H), H/D-exchanged (H/D) and deuterated (D/D) CA IXSV for crystallographic studies and their structural comparison are described. Four CA IXSV X-ray crystal structures are compared: two H/H crystal forms, an H/D crystal form and a D/D crystal form. The overall active-site organization in each version is essentially the same, with only minor positional changes in active-site solvent, which may be owing to deuteration and/or resolution differences. Analysis of the crystal contacts and packing reveals different arrangements of CA IXSV compared with previous reports. To our knowledge, this is the first report comparing three different deuterium-labelled crystal structures of the same protein, marking an important step in validating the active-site structure of CA IXSV for neutron protein crystallography.
Structural comparison of protiated, H/D-exchanged and deuterated human carbonic anhydrase IX.,Koruza K, Lafumat B, Nyblom M, Mahon BP, Knecht W, McKenna R, Fisher SZ Acta Crystallogr D Struct Biol. 2019 Oct 1;75(Pt 10):895-903. doi:, 10.1107/S2059798319010027. Epub 2019 Aug 22. PMID:31588921[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Hilvo M, Baranauskiene L, Salzano AM, Scaloni A, Matulis D, Innocenti A, Scozzafava A, Monti SM, Di Fiore A, De Simone G, Lindfors M, Janis J, Valjakka J, Pastorekova S, Pastorek J, Kulomaa MS, Nordlund HR, Supuran CT, Parkkila S. Biochemical characterization of CA IX, one of the most active carbonic anhydrase isozymes. J Biol Chem. 2008 Oct 10;283(41):27799-809. doi: 10.1074/jbc.M800938200. Epub, 2008 Aug 13. PMID:18703501 doi:http://dx.doi.org/10.1074/jbc.M800938200
- ↑ Koruza K, Lafumat B, Nyblom M, Mahon BP, Knecht W, McKenna R, Fisher SZ. Structural comparison of protiated, H/D-exchanged and deuterated human carbonic anhydrase IX. Acta Crystallogr D Struct Biol. 2019 Oct 1;75(Pt 10):895-903. doi:, 10.1107/S2059798319010027. Epub 2019 Aug 22. PMID:31588921 doi:http://dx.doi.org/10.1107/S2059798319010027
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