2eu2: Difference between revisions

New page: left|200px<br /> <applet load="2eu2" size="450" color="white" frame="true" align="right" spinBox="true" caption="2eu2, resolution 1.15Å" /> '''Human Carbonic Anhy...
 
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'''Human Carbonic Anhydrase II in complex with novel inhibitors'''<br />


==Overview==
==Human Carbonic Anhydrase II in complex with novel inhibitors==
Human carbonic anhydrases (CAs) are well studied targets for the, development of inhibitors for pharmaceutical applications. The crystal, structure of human CA II has been determined in complex with two CA, inhibitors (CAIs) containing conventional sulfonamide and thiadiazole, moieties separated by a -CF2- or -CHNH2- spacer group. The structures, presented here reveal that these spacer groups allow novel binding modes, for the thiadiazole moiety compared with conventional CAIs.
<StructureSection load='2eu2' size='340' side='right'caption='[[2eu2]], [[Resolution|resolution]] 1.15&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2eu2]] 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=2EU2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2EU2 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.15&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5DS:(R)-1-AMINO-1-[5-(DIMETHYLAMINO)-1,3,4-THIADIAZOL-2-YL]METHANESULFONAMIDE'>5DS</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=2eu2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2eu2 OCA], [https://pdbe.org/2eu2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2eu2 RCSB], [https://www.ebi.ac.uk/pdbsum/2eu2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2eu2 ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/CAH2_HUMAN CAH2_HUMAN] Defects in CA2 are the cause of osteopetrosis autosomal recessive type 3 (OPTB3) [MIM:[https://omim.org/entry/259730 259730]; also known as osteopetrosis with renal tubular acidosis, carbonic anhydrase II deficiency syndrome, Guibaud-Vainsel syndrome or marble brain disease. Osteopetrosis is a rare genetic disease characterized by abnormally dense bone, due to defective resorption of immature bone. The disorder occurs in two forms: a severe autosomal recessive form occurring in utero, infancy, or childhood, and a benign autosomal dominant form occurring in adolescence or adulthood. Autosomal recessive osteopetrosis is usually associated with normal or elevated amount of non-functional osteoclasts. OPTB3 is associated with renal tubular acidosis, cerebral calcification (marble brain disease) and in some cases with mental retardation.<ref>PMID:1928091</ref> <ref>PMID:1542674</ref> <ref>PMID:8834238</ref> <ref>PMID:9143915</ref> <ref>PMID:15300855</ref>
== 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>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/eu/2eu2_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=2eu2 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Human carbonic anhydrases (CAs) are well studied targets for the development of inhibitors for pharmaceutical applications. The crystal structure of human CA II has been determined in complex with two CA inhibitors (CAIs) containing conventional sulfonamide and thiadiazole moieties separated by a -CF2- or -CHNH2- spacer group. The structures presented here reveal that these spacer groups allow novel binding modes for the thiadiazole moiety compared with conventional CAIs.


==Disease==
X-ray crystallographic studies reveal that the incorporation of spacer groups in carbonic anhydrase inhibitors causes alternate binding modes.,Fisher SZ, Govindasamy L, Boyle N, Agbandje-McKenna M, Silverman DN, Blackburn GM, McKenna R Acta Crystallogr Sect F Struct Biol Cryst Commun. 2006 Jul 1;62(Pt, 7):618-22. Epub 2006 Jun 10. PMID:16820676<ref>PMID:16820676</ref>
Known disease associated with this structure: Osteopetrosis, autosomal recessive 3, with renal tubular acidosis OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=611492 611492]]


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
2EU2 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 ZN and 5DS as [http://en.wikipedia.org/wiki/ligands ligands]. 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://ispc.weizmann.ac.il/oca-bin/ocashort?id=2EU2 OCA].
</div>
<div class="pdbe-citations 2eu2" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
X-ray crystallographic studies reveal that the incorporation of spacer groups in carbonic anhydrase inhibitors causes alternate binding modes., Fisher SZ, Govindasamy L, Boyle N, Agbandje-McKenna M, Silverman DN, Blackburn GM, McKenna R, Acta Crystallograph Sect F Struct Biol Cryst Commun. 2006 Jul 1;62(Pt, 7):618-22. Epub 2006 Jun 10. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=16820676 16820676]
*[[Carbonic anhydrase 3D structures|Carbonic anhydrase 3D structures]]
[[Category: Carbonate dehydratase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Agbandje-McKenna, M.]]
[[Category: Agbandje-McKenna M]]
[[Category: Blackburn, G.M.]]
[[Category: Blackburn GM]]
[[Category: Boyle, N.]]
[[Category: Boyle N]]
[[Category: Fisher, S.Z.]]
[[Category: Fisher SZ]]
[[Category: Govindasamy, L.]]
[[Category: Govindasamy L]]
[[Category: McKenna, R.]]
[[Category: McKenna R]]
[[Category: Silverman, D.N.]]
[[Category: Silverman DN]]
[[Category: 5DS]]
[[Category: ZN]]
[[Category: carbonic anhydrase ii proton transfer inhibitor]]
 
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