4k0b

Crystal structure of S-Adenosylmethionine synthetase from Sulfolobus solfataricus complexed with SAM and PPi

spinqualitylabelsall models 4k0b, resolution 2.39Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4k0b is a 2 chain structure with sequence from Saccharolobus solfataricus P2. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.39Å Ligands: DPO, MG, MSE, PO4, SAM Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function METK_SACS2 Catalyzes the formation of S-adenosylmethionine from methionine and ATP.[HAMAP-Rule:MF_00136] Publication Abstract from PubMed SMNF: Methionine adenosyltransferase (MAT) is a family of enzymes that utilizes ATP and methionine to produce S-adenosylmethionine (AdoMet), the most crucial methyl donor in the biological methylation of biomolecules and bioactive natural products. Here, we report that the MAT from Sulfolobus solfataricus (sMAT), an enzyme from a poorly explored class of the MAT family, has the ability to produce a range of differentially alkylated AdoMet analogs in the presence of non-native methionine analogs and ATP. To investigate the molecular basis for AdoMet analog production, we have crystallized the sMAT in the AdoMet bound, S-adenosylethionine (AdoMet) bound, and unbound forms. Notably, among these structures, the AdoEth-bound form offers the first MAT structure containing a non-native product and cumulatively, these structures add new structural insight into the MAT family and allow for detailed active site comparison with its homologs in E. coli and human. As a thermostable MAT structure from archaea, the structures herein also provide as a basis for future engineering to potentially broaden AdoMet analog production as reagents for methyltransferase-catalyzed 'alkylrandomization' and/or the study of methylation in the context of biological processes. STRUCTURED DIGITAL ABSTRACT: sMAT and sMAT bind by x-ray crystallography (View interaction). Understanding Molecular Recognition of Promiscuity of Thermophilic Methionine Adenosyltransferase, sMAT from Sulfolobus solfataricus.,Wang F, Singh S, Zhang J, Huber TD, Helmich KE, Sunkara M, Hurley KA, Goff RD, Bingman CA, Morris AJ, Thorson JS, Phillips GN Jr FEBS J. 2014 Mar 20. doi: 10.1111/febs.12784. PMID:24649856 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also S-adenosylmethionine synthetase 3D structures

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