3ttd | pdb_00003ttd

Crystal structure of E. coli HypF with AMP-CPP and carbamoyl phosphate

spinqualitylabelsall models 3ttd, resolution 2.20Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3ttd is a 1 chain structure with sequence from Eco57. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: MG, ZN Related: 3tsp, 3tsq, 3tsu, 3ttc, 3ttf Gene: ECs3568, hypf (ECO57) Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed [NiFe]-hydrogenases are multimeric proteins. The large subunit contains the NiFe(CN)(2)CO bimetallic active center and the small subunit contains Fe-S clusters. Biosynthesis and assembly of the NiFe(CN)(2)CO active center requires six Hyp accessory proteins. The synthesis of the CN(-) ligands is catalyzed by the combined actions of HypF and HypE using carbamoylphosphate as a substrate. We report the structure of Escherichia coli HypF(92-750) lacking the N-terminal acylphosphatase domain. HypF(92-750) comprises the novel Zn-finger domain, the nucleotide-binding YrdC-like domain, and the Kae1-like universal domain, also binding a nucleotide and a Zn(2+) ion. The two nucleotide-binding sites are sequestered in an internal cavity, facing each other and separated by approximately 14 A. The YrdC-like domain converts carbamoyl moiety to a carbamoyl adenylate intermediate, which is channeled to the Kae1-like domain. Mutations within either nucleotide-binding site compromise hydrogenase maturation but do not affect the carbamoylphosphate phosphatase activity. Structure of Hydrogenase Maturation Protein HypF with Reaction Intermediates Shows Two Active Sites.,Petkun S, Shi R, Li Y, Asinas A, Munger C, Zhang L, Waclawek M, Soboh B, Sawers RG, Cygler M Structure. 2011 Dec 7;19(12):1773-83. PMID:22153500 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also HypA%2C HypB%2C HypC%2C HypD%2C HypE and HypF 3D structures

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