5ipz
From Proteopedia
(Difference between revisions)
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<StructureSection load='5ipz' size='340' side='right' caption='[[5ipz]], [[Resolution|resolution]] 2.10Å' scene=''> | <StructureSection load='5ipz' size='340' side='right' caption='[[5ipz]], [[Resolution|resolution]] 2.10Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[5ipz]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5IPZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5IPZ FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5ipz]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5IPZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5IPZ FirstGlance]. <br> |
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=6CC:5-(2-AMINO-1,3-THIAZOL-4-YL)-2-CHLOROBENZENE-1-SULFONAMIDE'>6CC</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=6CC:5-(2-AMINO-1,3-THIAZOL-4-YL)-2-CHLOROBENZENE-1-SULFONAMIDE'>6CC</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CA4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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='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='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=5ipz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ipz OCA], [http://pdbe.org/5ipz PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ipz RCSB], [http://www.ebi.ac.uk/pdbsum/5ipz PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ipz ProSAT]</span></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=5ipz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ipz OCA], [http://pdbe.org/5ipz PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ipz RCSB], [http://www.ebi.ac.uk/pdbsum/5ipz PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ipz ProSAT]</span></td></tr> | ||
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== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/CAH4_HUMAN CAH4_HUMAN]] Reversible hydration of carbon dioxide. May stimulate the sodium/bicarbonate transporter activity of SLC4A4 that acts in pH homeostasis. It is essential for acid overload removal from the retina and retina epithelium, and acid release in the choriocapillaris in the choroid.<ref>PMID:15563508</ref> | [[http://www.uniprot.org/uniprot/CAH4_HUMAN CAH4_HUMAN]] Reversible hydration of carbon dioxide. May stimulate the sodium/bicarbonate transporter activity of SLC4A4 that acts in pH homeostasis. It is essential for acid overload removal from the retina and retina epithelium, and acid release in the choriocapillaris in the choroid.<ref>PMID:15563508</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Membrane-associated carbonic anhydrase (CA) isoform IV participates in carbon metabolism and pH homeostasis and is implicated in the development of eye diseases such as retinitis pigmentosa and glaucoma. A series of substituted benzenesulfonamides were designed and their binding affinity to CA IV was determined by fluorescent thermal shift assay and isothermal titration calorimetry (ITC). Compound [(4-chloro-2-phenylsulfanyl-5-sulfamoyl-benzoyl)amino]propyl acetate (19) bound CA IV with the K d of 1.0 nM and exhibited significant selectivity over the remaining 11 human CA isoforms. The compound could be developed as a drug targeting CA IV. Various forms of recombinant CA IV were produced in Escherichia coli and mammalian cell cultures. Comparison of their temperature stability in various buffers and salt solutions demonstrated that CA IV is most stable at slightly alkaline conditions and at elevated sodium sulfate concentrations. High-resolution X-ray crystallographic structures of ortho-Cl and meta-thiazole-substituted benzene sulfonamide in complex with CA IV revealed the position of and interactions between the ligand and the protein. Sulfonamide inhibitor binding to CA IV is linked to several reactions-the deprotonation of the sulfonamide amino group, the protonation of CA-Zn(II)-bound hydroxide at the active site of CA IV, and the compensating reactions of the buffer. The dissection of binding-linked reactions yielded the intrinsic thermodynamic parameters, characterizing the interaction between CA IV and the sulfonamides in the binding-able protonation forms, including Gibbs energy, enthalpy, and entropy, that could be used for the characterization of binding to any CA in the process of drug design. | ||
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| + | Intrinsic thermodynamics of high affinity inhibitor binding to recombinant human carbonic anhydrase IV.,Mickeviciute A, Timm DD, Gedgaudas M, Linkuviene V, Chen Z, Waheed A, Michailoviene V, Zubriene A, Smirnov A, Capkauskaite E, Baranauskiene L, Jachno J, Revuckiene J, Manakova E, Grazulis S, Matuliene J, Di Cera E, Sly WS, Matulis D Eur Biophys J. 2017 Oct 3. pii: 10.1007/s00249-017-1256-0. doi:, 10.1007/s00249-017-1256-0. PMID:28975383<ref>PMID:28975383</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 5ipz" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Carbonate dehydratase]] | [[Category: Carbonate dehydratase]] | ||
| + | [[Category: Human]] | ||
[[Category: Grazulis, S]] | [[Category: Grazulis, S]] | ||
[[Category: Manakova, E]] | [[Category: Manakova, E]] | ||
Revision as of 07:36, 6 December 2017
Crystal structure of human carbonic anhydrase isozyme IV with 5-(2-amino-1,3-thiazol-4-yl)-2-chlorobenzenesulfonamide
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