3ozc

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{{STRUCTURE_3ozc| PDB=3ozc | SCENE= }}
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==Crystal Structure of human 5'-deoxy-5'-methyladenosine phosphorylase in complex with pCl-phenylthioDADMeImmA==
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===Crystal Structure of human 5'-deoxy-5'-methyladenosine phosphorylase in complex with pCl-phenylthioDADMeImmA===
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<StructureSection load='3ozc' size='340' side='right' caption='[[3ozc]], [[Resolution|resolution]] 1.93&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3ozc]] 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=3OZC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3OZC FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=4CT:(3R,4S)-1-[(4-AMINO-5H-PYRROLO[3,2-D]PYRIMIDIN-7-YL)METHYL]-4-{[(4-CHLOROPHENYL)SULFANYL]METHYL}PYRROLIDIN-3-OL'>4CT</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3ozd|3ozd]], [[3oze|3oze]]</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MTAP, MSAP ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/S-methyl-5'-thioadenosine_phosphorylase S-methyl-5'-thioadenosine phosphorylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.28 2.4.2.28] </span></td></tr>
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<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=3ozc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ozc OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3ozc RCSB], [http://www.ebi.ac.uk/pdbsum/3ozc PDBsum]</span></td></tr>
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</table>
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== Disease ==
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[[http://www.uniprot.org/uniprot/MTAP_HUMAN MTAP_HUMAN]] Defects in MTAP are the cause of diaphyseal medullary stenosis with malignant fibrous histiocytoma (DMSMFH) [MIM:[http://omim.org/entry/112250 112250]]. An autosomal dominant bone dysplasia characterized by pathologic fractures due to abnormal cortical growth and diaphyseal medullary stenosis. The fractures heal poorly, and there is progressive bowing of the lower extremities. Some patients show a limb-girdle myopathy, with muscle weakness and atrophy. Approximately 35% of affected individuals develop an aggressive form of bone sarcoma consistent with malignant fibrous histiocytoma or osteosarcoma. Note=DMSMFH causing mutations found in MTAP exon 9 result in exon skipping and dysregulated alternative splicing of all MTAP isoforms (PubMed:22464254).<ref>PMID:22464254</ref> Note=Loss of MTAP activity may play a role in human cancer. MTAP loss has been reported in a number of cancers, including osteosarcoma, malignant melanoma and gastric cancer.[HAMAP-Rule:MF_03155]
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== Function ==
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[[http://www.uniprot.org/uniprot/MTAP_HUMAN MTAP_HUMAN]] Catalyzes the reversible phosphorylation of S-methyl-5'-thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate. Involved in the breakdown of MTA, a major by-product of polyamine biosynthesis. Responsible for the first step in the methionine salvage pathway after MTA has been generated from S-adenosylmethionine. Has broad substrate specificity with 6-aminopurine nucleosides as preferred substrates.<ref>PMID:3091600</ref>
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==Disease==
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==See Also==
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[[http://www.uniprot.org/uniprot/MTAP_HUMAN MTAP_HUMAN]] Defects in MTAP are the cause of diaphyseal medullary stenosis with malignant fibrous histiocytoma (DMSMFH) [MIM:[http://omim.org/entry/112250 112250]]. An autosomal dominant bone dysplasia characterized by pathologic fractures due to abnormal cortical growth and diaphyseal medullary stenosis. The fractures heal poorly, and there is progressive bowing of the lower extremities. Some patients show a limb-girdle myopathy, with muscle weakness and atrophy. Approximately 35% of affected individuals develop an aggressive form of bone sarcoma consistent with malignant fibrous histiocytoma or osteosarcoma. Note=DMSMFH causing mutations found in MTAP exon 9 result in exon skipping and dysregulated alternative splicing of all MTAP isoforms (PubMed:22464254).<ref>PMID:22464254</ref> Note=Loss of MTAP activity may play a role in human cancer. MTAP loss has been reported in a number of cancers, including osteosarcoma, malignant melanoma and gastric cancer.[HAMAP-Rule:MF_03155]
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*[[5'-deoxy-5'-methylthioadenosine phosphorylase|5'-deoxy-5'-methylthioadenosine phosphorylase]]
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== References ==
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==Function==
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<references/>
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[[http://www.uniprot.org/uniprot/MTAP_HUMAN MTAP_HUMAN]] Catalyzes the reversible phosphorylation of S-methyl-5'-thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate. Involved in the breakdown of MTA, a major by-product of polyamine biosynthesis. Responsible for the first step in the methionine salvage pathway after MTA has been generated from S-adenosylmethionine. Has broad substrate specificity with 6-aminopurine nucleosides as preferred substrates.<ref>PMID:3091600</ref>
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__TOC__
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</StructureSection>
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==About this Structure==
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[[3ozc]] 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=3OZC OCA].
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==Reference==
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<references group="xtra"/><references/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: S-methyl-5'-thioadenosine phosphorylase]]
[[Category: S-methyl-5'-thioadenosine phosphorylase]]
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[[Category: Almo, S C.]]
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[[Category: Almo, S C]]
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[[Category: Guan, R.]]
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[[Category: Guan, R]]
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[[Category: Ho, M.]]
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[[Category: Ho, M]]
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[[Category: Schramm, V L.]]
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[[Category: Schramm, V L]]
[[Category: 5'-methylthioadenosine]]
[[Category: 5'-methylthioadenosine]]
[[Category: Mtap]]
[[Category: Mtap]]

Revision as of 13:25, 6 November 2014

Crystal Structure of human 5'-deoxy-5'-methyladenosine phosphorylase in complex with pCl-phenylthioDADMeImmA

3ozc, resolution 1.93Å

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