4nxs

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'''Unreleased structure'''
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==Crystal structure of human alpha-galactosidase A in complex with 1-deoxygalactonojirimycin-pFPhT==
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<StructureSection load='4nxs' size='340' side='right' caption='[[4nxs]], [[Resolution|resolution]] 2.55&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4nxs]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4NXS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4NXS FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=2OZ:(2R,3S,4R,5S)-N-(4-FLUOROPHENYL)-3,4,5-TRIHYDROXY-2-(HYDROXYMETHYL)PIPERIDINE-1-CARBOTHIOAMIDE'>2OZ</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene><br>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Alpha-galactosidase Alpha-galactosidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.22 3.2.1.22] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4nxs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4nxs OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4nxs RCSB], [http://www.ebi.ac.uk/pdbsum/4nxs PDBsum]</span></td></tr>
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<table>
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== Disease ==
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[[http://www.uniprot.org/uniprot/AGAL_HUMAN AGAL_HUMAN]] Defects in GLA are the cause of Fabry disease (FD) [MIM:[http://omim.org/entry/301500 301500]]. FD is a rare X-linked sphingolipidosis disease where glycolipid accumulates in many tissues. The disease consists of an inborn error of glycosphingolipid catabolism. FD patients show systemic accumulation of globotriaoslyceramide (Gb3) and related glycosphingolipids in the plasma and cellular lysosomes throughout the body. Clinical recognition in males results from characteristic skin lesions (angiokeratomas) over the lower trunk. Patients may show ocular deposits, febrile episodes, and burning pain in the extremities. Death results from renal failure, cardiac or cerebral complications of hypertension or other vascular disease. Heterozygous females may exhibit the disorder in an attenuated form, they are more likely to show corneal opacities.<ref>PMID:2152885</ref> <ref>PMID:1846223</ref> <ref>PMID:2171331</ref> <ref>PMID:2539398</ref> <ref>PMID:1315715</ref> <ref>PMID:7504405</ref> <ref>PMID:8395937</ref> <ref>PMID:8069316</ref> <ref>PMID:7531540</ref> <ref>PMID:7575533</ref> <ref>PMID:7759078</ref> <ref>PMID:7599642</ref> <ref>PMID:7596372</ref> <ref>PMID:8738659</ref> <ref>PMID:8875188</ref> <ref>PMID:8834244</ref> <ref>PMID:8931708</ref> <ref>PMID:8807334</ref> <ref>PMID:8863162</ref> <ref>PMID:9105656</ref> <ref>PMID:9100224</ref> <ref>PMID:9554750</ref> <ref>PMID:9452068</ref> <ref>PMID:9452090</ref> <ref>PMID:9452111</ref> <ref>PMID:10208848</ref> <ref>PMID:10090526</ref> <ref>PMID:10838196</ref> <ref>PMID:10666480</ref> <ref>PMID:11076046</ref> <ref>PMID:10916280</ref> <ref>PMID:11295840</ref> <ref>PMID:11668641</ref> <ref>PMID:11889412</ref> <ref>PMID:12694230</ref> <ref>PMID:12786754</ref> <ref>PMID:15162124</ref> <ref>PMID:15712228</ref> <ref>PMID:16533976</ref> <ref>PMID:19621417</ref>
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== Function ==
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The entry 4nxs is ON HOLD until Paper Publication
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Fabry disease (FD) is an X-linked lysosomal storage disorder caused by mutations in the GLA gene often leading to missense alpha-galactosidase A (alpha-Gal A) variants that undergo premature endoplasmic reticulum-associated degradation due to folding defects. We have synthesized and characterized a new family of neutral amphiphilic pharmacological chaperones, namely 1-deoxygalactonojirimycin-arylthioureas (DGJ-ArTs), capable of stabilizing alpha-Gal A and restoring trafficking. Binding to the enzyme is reinforced by a strong hydrogen bond involving the aryl-N'H thiourea proton and the catalytic aspartic acid acid D231 of alpha-Gal A, as confirmed by a 2.55 A resolution cocrystal structure. Selected candidates enhanced alpha-Gal A activity and ameliorate globotriaosylceramide (Gb3) accumulation and autophagy impairments in FD cell cultures. Moreover, they acted synergistically with the proteostasis regulator 4-phenylbutyric acid, appearing to be promising leads as pharmacological chaperones for FD.
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Authors: Johnson, J.L., Drury, J.E., Lieberman, R.L.
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Molecular Basis of 1-Deoxygalactonojirimycin Arylthiourea Binding to Human alpha-Galactosidase A: Pharmacological Chaperoning Efficacy on Fabry Disease Mutants.,Yu Y, Mena-Barragan T, Higaki K, Johnson JL, Drury JE, Lieberman RL, Nakasone N, Ninomiya H, Tsukimura T, Sakuraba H, Suzuki Y, Nanba E, Mellet CO, Garcia Fernandez JM, Ohno K ACS Chem Biol. 2014 May 12. PMID:24783948<ref>PMID:24783948</ref>
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Description: Crystal structure of human alpha-galactosidase A in complex with 1-deoxygalactonojirimycin-pFPhT
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Alpha-galactosidase]]
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[[Category: Drury, J E.]]
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[[Category: Johnson, J L.]]
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[[Category: Lieberman, R L.]]
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[[Category: Alpha-galactosidase]]
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[[Category: Arylthiourea]]
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[[Category: Drug delivery system]]
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[[Category: Enzyme activation]]
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[[Category: Enzyme stability]]
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[[Category: Fabry disease]]
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[[Category: Gla gene]]
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[[Category: Human]]
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[[Category: Hydrolase-hydrolase inhibitor complex]]
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[[Category: Lysosome]]
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[[Category: Molecular chaperone]]
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[[Category: Pharmacological chaperone]]
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[[Category: Protein binding]]

Revision as of 08:44, 11 June 2014

Crystal structure of human alpha-galactosidase A in complex with 1-deoxygalactonojirimycin-pFPhT

4nxs, resolution 2.55Å

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