3pcv
From Proteopedia
(Difference between revisions)
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| - | + | ==Crystal structure analysis of human leukotriene C4 synthase at 1.9 angstrom resolution== | |
| - | + | <StructureSection load='3pcv' size='340' side='right' caption='[[3pcv]], [[Resolution|resolution]] 1.90Å' scene=''> | |
| - | + | == Structural highlights == | |
| - | + | <table><tr><td colspan='2'>[[3pcv]] is a 1 chain structure with 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=3PCV OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3PCV FirstGlance]. <br> | |
| - | ==Disease== | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GSH:GLUTATHIONE'>GSH</scene>, <scene name='pdbligand=LMT:DODECYL-BETA-D-MALTOSIDE'>LMT</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=UNL:UNKNOWN+LIGAND'>UNL</scene></td></tr> |
| + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2pno|2pno]]</td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">LTC4S ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr> | ||
| + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Leukotriene-C(4)_synthase Leukotriene-C(4) synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.4.1.20 4.4.1.20] </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=3pcv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3pcv OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3pcv RCSB], [http://www.ebi.ac.uk/pdbsum/3pcv PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Disease == | ||
[[http://www.uniprot.org/uniprot/LTC4S_HUMAN LTC4S_HUMAN]] Defects in LTC4S are the cause of leukotriene C4 synthase deficiency (LTC4 synthase deficiency) [MIM:[http://omim.org/entry/246530 246530]]. LTC4 synthase deficiency is a fatal neurometabolic developmental disorder. It is associated with muscular hypotonia, psychomotor retardation, failure to thrive, and microcephaly. | [[http://www.uniprot.org/uniprot/LTC4S_HUMAN LTC4S_HUMAN]] Defects in LTC4S are the cause of leukotriene C4 synthase deficiency (LTC4 synthase deficiency) [MIM:[http://omim.org/entry/246530 246530]]. LTC4 synthase deficiency is a fatal neurometabolic developmental disorder. It is associated with muscular hypotonia, psychomotor retardation, failure to thrive, and microcephaly. | ||
| - | + | == Function == | |
| - | ==Function== | + | |
[[http://www.uniprot.org/uniprot/LTC4S_HUMAN LTC4S_HUMAN]] Catalyzes the conjugation of leukotriene A4 with reduced glutathione to form leukotriene C4. | [[http://www.uniprot.org/uniprot/LTC4S_HUMAN LTC4S_HUMAN]] Catalyzes the conjugation of leukotriene A4 with reduced glutathione to form leukotriene C4. | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Leukotriene (LT) C(4) and its metabolites, LTD(4) and LTE(4), are involved in the pathobiology of bronchial asthma. LTC(4) synthase is the nuclear membrane-embedded enzyme responsible for LTC(4) biosynthesis, catalyzing the conjugation of two substrates that have considerably different water solubility; that amphipathic LTA(4) as a derivative of arachidonic acid and a water-soluble glutathione (GSH). A previous crystal structure revealed important details of GSH binding and implied a GSH activating function for Arg-104. In addition, Arg-31 was also proposed to participate in the catalysis based on the putative LTA(4) binding model. In this study enzymatic assay with mutant enzymes demonstrates that Arg-104 is required for the binding and activation of GSH and that Arg-31 is needed for catalysis probably by activating the epoxide group of LTA(4). | ||
| - | + | The catalytic architecture of leukotriene C4 synthase with two arginine residues.,Saino H, Ukita Y, Ago H, Irikura D, Nisawa A, Ueno G, Yamamoto M, Kanaoka Y, Lam BK, Austen KF, Miyano M J Biol Chem. 2011 May 6;286(18):16392-401. Epub 2011 Mar 16. PMID:21454538<ref>PMID:21454538</ref> | |
| - | + | ||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
==See Also== | ==See Also== | ||
*[[Leukotriene C4 synthase|Leukotriene C4 synthase]] | *[[Leukotriene C4 synthase|Leukotriene C4 synthase]] | ||
| - | + | == References == | |
| - | == | + | <references/> |
| - | + | __TOC__ | |
| + | </StructureSection> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
| - | [[Category: Ago, H | + | [[Category: Ago, H]] |
| - | [[Category: Miyano, M | + | [[Category: Miyano, M]] |
| - | [[Category: Saino, H | + | [[Category: Saino, H]] |
[[Category: Helix bundle]] | [[Category: Helix bundle]] | ||
[[Category: Homo trimer]] | [[Category: Homo trimer]] | ||
Revision as of 07:23, 19 December 2014
Crystal structure analysis of human leukotriene C4 synthase at 1.9 angstrom resolution
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Categories: Homo sapiens | Ago, H | Miyano, M | Saino, H | Helix bundle | Homo trimer | Lyase | Mapeg | Membrane protein | Mgst
