3l4o

Crystal Structure of the MauG/pre-Methylamine Dehydrogenase Complex After Treatment with Hydrogen Peroxide

spinqualitylabelsall models 3l4o, resolution 2.05Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3l4o is a 6 chain structure with sequence from Paracoccus denitrificans. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: 1PE, ACT, CA, HEC, PG4 NonStd Res: TRQ Related: 3l4m, 3orv, 3pxs, 3pxt, 3pxw Gene: mauG (Paracoccus denitrificans), mauA (Paracoccus denitrificans), Pden_4730 (Paracoccus denitrificans) Activity: Amine dehydrogenase, with EC number 1.4.99.3 Resources: FirstGlance, OCA, RCSB, PDBsum Function [MAUG_PARDP] Involved in methylamine metabolism. Essential for the maturation of the beta subunit of MADH, presumably via a step in the biosynthesis of tryptophan tryptophylquinone (TTQ), the cofactor of MADH. [DHML_PARDE] Methylamine dehydrogenase carries out the oxidation of methylamine. Electrons are passed from methylamine dehydrogenase to amicyanin. 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 MauG is a diheme enzyme responsible for the posttranslational modification of two tryptophan residues to form the tryptophan tryptophylquinone (TTQ) cofactor of methylamine dehydrogenase (MADH). MauG converts preMADH, containing monohydroxylated betaTrp57, to fully functional MADH by catalyzing the insertion of a second oxygen atom into the indole ring and covalently linking betaTrp57 to betaTrp108. We have solved the x-ray crystal structure of MauG complexed with preMADH to 2.1 angstroms. The c-type heme irons and the nascent TTQ site are separated by long distances over which electron transfer must occur to achieve catalysis. In addition, one of the hemes has an atypical His-Tyr axial ligation. The crystalline protein complex is catalytically competent; upon addition of hydrogen peroxide, MauG-dependent TTQ synthesis occurs. In crystallo posttranslational modification within a MauG/pre-methylamine dehydrogenase complex.,Jensen LM, Sanishvili R, Davidson VL, Wilmot CM Science. 2010 Mar 12;327(5971):1392-4. PMID:20223990 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Methylamine dehydrogenase

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