3rq8 | pdb_00003rq8

Crystal Structure of ADP/ATP-dependent NAD(P)H-hydrate dehydratase from Bacillus subtilis soaked with P1,P5-Di(adenosine-5') pentaphosphate

spinqualitylabelsall models 3rq8, resolution 1.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3rq8 is a 1 chain structure with sequence from "bacillus_globigii"_migula_1900 "bacillus globigii" migula 1900. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: AP5, MG Related: 1kyh, 3rpz, 3rq5, 3rq6, 3rqh, 3rqq, 3rqx Gene: BSU38720, yxkO ("Bacillus globigii" Migula 1900) Activity: ATP-dependent NAD(P)H-hydrate dehydratase, with EC number 4.2.1.93 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [NNRD_BACSU] Catalyzes the dehydration of the S-form of NAD(P)HX at the expense of ADP, which is converted to AMP. Together with NAD(P)HX epimerase, which catalyzes the epimerization of the S- and R-forms, the enzyme allows the repair of both epimers of NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or heat-dependent hydration.[HAMAP-Rule:MF_01965] Publication Abstract from PubMed Proteins of unknown function comprise a significant fraction of sequenced genomes. Defining the roles of these proteins is vital to understanding cellular processes. Here, we describe a method to determine a protein function based on the identification of its natural ligand(s) by the crystallographic screening of the binding of a metabolite library, followed by a focused search in the metabolic space. The method was applied to two protein families with unknown function, PF01256 and YjeF_N. The PF01256 proteins, represented by YxkO from Bacillus subtilis and the C-terminal domain of Tm0922 from Thermotoga maritima, were shown to catalyze ADP/ATP-dependent NAD(P)H-hydrate dehydratation, a previously described orphan activity. The YjeF_N proteins, represented by mouse apolipoprotein A-I binding protein and the N-terminal domain of Tm0922, were found to interact with an adenosine diphosphoribose-related substrate and likely serve as ADP-ribosyltransferases. Crystallographic screening of metabolites serves as an efficient tool in functional analyses of uncharacterized proteins. Identification of Unknown Protein Function Using Metabolite Cocktail Screening.,Shumilin IA, Cymborowski M, Chertihin O, Jha KN, Herr JC, Lesley SA, Joachimiak A, Minor W Structure. 2012 Aug 28. PMID:22940582 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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