1hmy

CRYSTAL STRUCTURE OF THE HHAI DNA METHYLTRANSFERASE COMPLEXED WITH S-ADENOSYL-L-METHIONINE

spinqualitylabelsall models 1hmy, resolution 2.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1hmy is a 1 chain structure with sequence from Haemophilus haemolyticus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.5Å Ligands: SAM Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function MTH1_HAEPH This methylase recognizes the double-stranded sequence GCGC, causes specific methylation on C-2 on both strands, and protects the DNA from cleavage by the HhaI endonuclease. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The first three-dimensional structure of a DNA methyltransferase is presented. The crystal structure of the DNA (cytosine-5)-methyltransferase, M.HhaI (recognition sequence: GCGC), complexed with S-adenosyl-L-methionine has been determined and refined at 2.5 A resolution. The core of the structure is dominated by sequence motifs conserved among all DNA (cytosine-5)-methyltransferases, and these are responsible for cofactor binding and methyltransferase function. Crystal structure of the HhaI DNA methyltransferase complexed with S-adenosyl-L-methionine.,Cheng X, Kumar S, Posfai J, Pflugrath JW, Roberts RJ Cell. 1993 Jul 30;74(2):299-307. PMID:8343957 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also DNA methyltransferase 3D structures

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