1jcz

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (00:07, 21 November 2024) (edit) (undo)
 
(16 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1jcz.gif|left|200px]]
 
-
{{Structure
+
==CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF HUMAN CARBONIC ANHYDRASE XII==
-
|PDB= 1jcz |SIZE=350|CAPTION= <scene name='initialview01'>1jcz</scene>, resolution 1.55&Aring;
+
<StructureSection load='1jcz' size='340' side='right'caption='[[1jcz]], [[Resolution|resolution]] 1.55&Aring;' scene=''>
-
|SITE=
+
== Structural highlights ==
-
|LIGAND= <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene> and <scene name='pdbligand=ACY:ACETIC ACID'>ACY</scene>
+
<table><tr><td colspan='2'>[[1jcz]] is a 2 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=1JCZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JCZ FirstGlance]. <br>
-
|ACTIVITY= [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]
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.55&#8491;</td></tr>
-
|GENE=
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACY:ACETIC+ACID'>ACY</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=1jcz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jcz OCA], [https://pdbe.org/1jcz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jcz RCSB], [https://www.ebi.ac.uk/pdbsum/1jcz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jcz ProSAT]</span></td></tr>
 +
</table>
 +
== Disease ==
 +
[https://www.uniprot.org/uniprot/CAH12_HUMAN CAH12_HUMAN] Defects in CA12 are the cause of hyperchlorhidrosis isolated (HCHLH) [MIM:[https://omim.org/entry/143860 143860]. HCHLH is a disorder characterized by excessive sweating and increased sweat chloride levels. Affected individuals suffer from episodes of hyponatremic dehydration and report increased amounts of visible salt precipitates in sweat.<ref>PMID:21035102</ref>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/CAH12_HUMAN CAH12_HUMAN] Reversible hydration of carbon dioxide.
 +
== 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/jc/1jcz_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1jcz ConSurf].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
Overexpression of the zinc enzyme carbonic anhydrase (CA; EC ) XII is observed in certain human cancers. This bitopic membrane protein contains an N-terminal extracellular catalytic domain, a membrane-spanning alpha-helix, and a small intracellular C-terminal domain. We have determined the three-dimensional structure of the extracellular catalytic domain of human CA XII by x-ray crystallographic methods at 1.55-A resolution. The structure reveals a prototypical CA fold; however, two CA XII domains associate to form an isologous dimer, an observation that is confirmed by studies of the enzyme in solution. The identification of signature GXXXG and GXXXS motifs in the transmembrane sequence that facilitate helix-helix association is additionally consistent with dimeric architecture. The dimer interface is situated so that the active site clefts of each monomer are clearly exposed on one face of the dimer, and the C termini are located together on the opposite face of the dimer to facilitate membrane interaction. The amino acid composition of the active-site cleft closely resembles that of the other CA isozymes in the immediate vicinity of the catalytic zinc ion, but differs in the region of the nearby alpha-helical "130's segment." The structure of the CA XII-acetazolamide complex is also reported at 1.50-A resolution, and prospects for the design of CA XII-specific inhibitors of possible chemotherapeutic value are discussed.
-
'''CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF HUMAN CARBONIC ANHYDRASE XII'''
+
Crystal structure of the dimeric extracellular domain of human carbonic anhydrase XII, a bitopic membrane protein overexpressed in certain cancer tumor cells.,Whittington DA, Waheed A, Ulmasov B, Shah GN, Grubb JH, Sly WS, Christianson DW Proc Natl Acad Sci U S A. 2001 Aug 14;98(17):9545-50. Epub 2001 Aug 7. PMID:11493685<ref>PMID:11493685</ref>
 +
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 +
</div>
 +
<div class="pdbe-citations 1jcz" style="background-color:#fffaf0;"></div>
-
==Overview==
+
==See Also==
-
Overexpression of the zinc enzyme carbonic anhydrase (CA; EC ) XII is observed in certain human cancers. This bitopic membrane protein contains an N-terminal extracellular catalytic domain, a membrane-spanning alpha-helix, and a small intracellular C-terminal domain. We have determined the three-dimensional structure of the extracellular catalytic domain of human CA XII by x-ray crystallographic methods at 1.55-A resolution. The structure reveals a prototypical CA fold; however, two CA XII domains associate to form an isologous dimer, an observation that is confirmed by studies of the enzyme in solution. The identification of signature GXXXG and GXXXS motifs in the transmembrane sequence that facilitate helix-helix association is additionally consistent with dimeric architecture. The dimer interface is situated so that the active site clefts of each monomer are clearly exposed on one face of the dimer, and the C termini are located together on the opposite face of the dimer to facilitate membrane interaction. The amino acid composition of the active-site cleft closely resembles that of the other CA isozymes in the immediate vicinity of the catalytic zinc ion, but differs in the region of the nearby alpha-helical "130's segment." The structure of the CA XII-acetazolamide complex is also reported at 1.50-A resolution, and prospects for the design of CA XII-specific inhibitors of possible chemotherapeutic value are discussed.
+
*[[Carbonic anhydrase 3D structures|Carbonic anhydrase 3D structures]]
-
 
+
== References ==
-
==About this Structure==
+
<references/>
-
1JCZ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JCZ OCA].
+
__TOC__
-
 
+
</StructureSection>
-
==Reference==
+
-
Crystal structure of the dimeric extracellular domain of human carbonic anhydrase XII, a bitopic membrane protein overexpressed in certain cancer tumor cells., Whittington DA, Waheed A, Ulmasov B, Shah GN, Grubb JH, Sly WS, Christianson DW, Proc Natl Acad Sci U S A. 2001 Aug 14;98(17):9545-50. Epub 2001 Aug 7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11493685 11493685]
+
-
[[Category: Carbonate dehydratase]]
+
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
-
[[Category: Single protein]]
+
[[Category: Large Structures]]
-
[[Category: Christianson, D W.]]
+
[[Category: Christianson DW]]
-
[[Category: Grubb, J H.]]
+
[[Category: Grubb JH]]
-
[[Category: Shah, G N.]]
+
[[Category: Shah GN]]
-
[[Category: Sly, W S.]]
+
[[Category: Sly WS]]
-
[[Category: Ulmasov, B.]]
+
[[Category: Ulmasov B]]
-
[[Category: Waheed, A.]]
+
[[Category: Waheed A]]
-
[[Category: Whittington, D A.]]
+
[[Category: Whittington DA]]
-
[[Category: ACY]]
+
-
[[Category: ZN]]
+
-
[[Category: bitopic membrane protein]]
+
-
[[Category: extracellular domain]]
+
-
[[Category: human carbonic anhydrase xii]]
+
-
[[Category: type i membrane protein]]
+
-
 
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:01:44 2008''
+

Current revision

CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF HUMAN CARBONIC ANHYDRASE XII

PDB ID 1jcz

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1jcz"
Personal tools