3mch | pdb_00003mch

Crystal structure of the molybdopterin biosynthesis enzyme MoaB (TTHA0341) from thermus theromophilus HB8

spinqualitylabelsall models 3mch, resolution 1.64Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3mch is a 3 chain structure with sequence from Thet8. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: EDO Related: 2is8 Gene: TTHA0341 (THET8) Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Molybdenum-cofactor (Moco) biosynthesis is an evolutionarily conserved pathway in almost all kingdoms of life, including humans. Two proteins, MogA and MoeA, catalyze the last step of this pathway in bacteria, whereas a single two-domain protein carries out catalysis in eukaryotes. Here, three crystal structures of the Moco-biosynthesis protein MogA from the two thermophilic organisms Thermus thermophilus (TtMogA; 1.64 A resolution, space group P2(1)) and Aquifex aeolicus (AaMogA; 1.70 A resolution, space group P2(1) and 1.90 A resolution, space group P1) have been determined. The functional roles and the residues involved in oligomerization of the protein molecules have been identified based on a comparative analysis of these structures with those of homologous proteins. Furthermore, functional roles have been proposed for the N- and C-terminal residues. In addition, a possible protein-protein complex of MogA and MoeA has been proposed and the residues involved in protein-protein interactions are discussed. Several invariant water molecules and those present at the subunit interfaces have been identified and their possible structural and/or functional roles are described in brief. In addition, molecular-dynamics and docking studies with several small molecules (including the substrate and the product) have been carried out in order to estimate their binding affinities towards AaMogA and TtMogA. The results obtained are further compared with those obtained for homologous eukaryotic proteins. Crystal structures, dynamics and functional implications of molybdenum-cofactor biosynthesis protein MogA from two thermophilic organisms.,Kanaujia SP, Jeyakanthan J, Shinkai A, Kuramitsu S, Yokoyama S, Sekar K Acta Crystallogr Sect F Struct Biol Cryst Commun. 2011 Jan 1;67(Pt, 1):2-16. Epub 2010 Dec 21. PMID:21206014 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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