1k27: Difference between revisions

<StructureSection load='1k27' size='340' side='right' caption='[[1k27]], [[Resolution|resolution]] 1.95&Aring;' scene=''>

<table><tr><td colspan='2'>[[1k27]] 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=1K27 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1K27 FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MTM:(3S,4R)-2-(4-AMINO-5H-PYRROLO[3,2-D]PYRIMIDIN-7-YL)-5-[(METHYLSULFANYL)METHYL]PYRROLIDINE-3,4-DIOL'>MTM</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>

<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>

<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=1k27 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1k27 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1k27 RCSB], [http://www.ebi.ac.uk/pdbsum/1k27 PDBsum]</span></td></tr>

[[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]  

[[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>

     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/k2/1k27_consurf.spt"</scriptWhenChecked>

</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/chain_selection.php?pdb_ID=2ata ConSurf].

*[[5'-deoxy-5'-methylthioadenosine phosphorylase|5'-deoxy-5'-methylthioadenosine phosphorylase]]

[[Category: S-methyl-5'-thioadenosine phosphorylase]]

[[Category: Almo, S C]]

[[Category: Furneaux, R H]]

[[Category: Schramm, V L]]

[[Category: Shi, W]]

[[Category: Singh, V]]

[[Category: Tyler, P C]]

[[Category: Transition state analogue]]