6fwb: Difference between revisions

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OCA

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-'''Unreleased structure'''
-The entry 6fwb is ON HOLD
+==Crystal structure of Mat2A at 1.79 Angstron resolution==
+<StructureSection load='6fwb' size='340' side='right'caption='[[6fwb]], [[Resolution|resolution]] 1.79&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[6fwb]] is a 4 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=6FWB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6FWB FirstGlance]. <br>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.79&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=6fwb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6fwb OCA], [https://pdbe.org/6fwb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6fwb RCSB], [https://www.ebi.ac.uk/pdbsum/6fwb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6fwb ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/METK2_HUMAN METK2_HUMAN] Catalyzes the formation of S-adenosylmethionine from methionine and ATP.
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+BACKGROUND: Psoriasis is a common chronic inflammatory skin disease which lacks effective strategies for the treatment. Natural compounds with biological activities are good tools to identify new targets with therapeutic potentials. Acetyl-11-keto-beta-boswellic acid (AKBA) is the most bioactive ingredient of boswellic acids, a group of compounds with anti-inflammatory and anti-cancer properties. Target identification of AKBA and metabolomics analysis of psoriasis helped to elucidate the molecular mechanism underlying its effect, and provide new target(s) to treat the disease. METHODS: To explore the targets and molecular mechanism of AKBA, we performed affinity purification, metabolomics analysis of HaCaT cells treated with AKBA, and epidermis of imiquimod (IMQ) induced mouse model of psoriasis and psoriasis patients. FINDINGS: AKBA directly interacts with methionine adenosyltransferase 2A (MAT2A), inhibited its enzyme activity, decreased level of S-adenosylmethionine (SAM) and SAM/SAH ratio, and reprogrammed onecarbon metabolism in HaCaT cells. Untargeted metabolomics of epidermis showed onecarbon metabolism was activated in psoriasis patients. Topical use of AKBA improved inflammatory phenotype of IMQ induced psoriasis-like mouse model. Molecular docking and site-directed mutagenesis revealed AKBA bound to an allosteric site at the interface of MAT2A dimer. INTERPRETATION: Our study extends the molecular mechanism of AKBA by revealing a new interacting protein MAT2A. And this leads us to find out the dysregulated onecarbon metabolism in psoriasis, which indicates the therapeutic potential of AKBA in psoriasis. FUND: The National Natural Science Foundation, the National Program on Key Basic Research Project, the Shanghai Municipal Commission, the Leading Academic Discipline Project of the Shanghai Municipal Education Commission.
-Authors:
+Identification of a natural inhibitor of methionine adenosyltransferase 2A regulating one-carbon metabolism in keratinocytes.,Bai J, Gao Y, Chen L, Yin Q, Lou F, Wang Z, Xu Z, Zhou H, Li Q, Cai W, Sun Y, Niu L, Wang H, Wei Z, Lu S, Zhou A, Zhang J, Wang H EBioMedicine. 2019 Jan;39:575-590. doi: 10.1016/j.ebiom.2018.12.036. Epub 2018, Dec 25. PMID:30591370<ref>PMID:30591370</ref>
-Description:
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-[[Category: Unreleased Structures]]
+</div>
+<div class="pdbe-citations 6fwb" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[S-adenosylmethionine synthetase 3D structures|S-adenosylmethionine synthetase 3D structures]]
+== References ==
+<references/>
+__TOC__
+</StructureSection>
+[[Category: Homo sapiens]]
+[[Category: Large Structures]]
+[[Category: Bai J]]
+[[Category: Wang H]]
+[[Category: Wei Z]]
+[[Category: Zhou A]]