2z1d

Crystal structure of [NiFe] hydrogenase maturation protein, HypD from Thermococcus kodakaraensis

spinqualitylabelsall models 2z1d, resolution 2.07Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2z1d is a 2 chain structure with sequence from Thermococcus kodakarensis KOD1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.07Å Ligands: CSD Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q5JII1_THEKO 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 [NiFe] hydrogenase maturation proteins HypC, HypD, and HypE catalyze the insertion and cyanation of the iron center of [NiFe] hydrogenases by an unknown mechanism. We have determined the crystal structures of HypC, HypD, and HypE from Thermococcus kodakaraensis KOD1 at 1.8 A, 2.07 A, and 1.55 A resolution, respectively. The structure of HypD reveals its probable iron binding and active sites for cyanation. An extended conformation of each conserved motif of HypC and HypE allows the essential cysteine residues of both proteins to interact with the active site of HypD. Furthermore, the C-terminal tail of HypE is shown to exist in an ATP-dependent dynamic equilibrium between outward and inward conformations. Unexpectedly, the [4Fe-4S] cluster environment of HypD is quite similar to that of ferredoxin:thioredoxin reductase (FTR), indicating the existence of a redox cascade similar to the FTR system. These results suggest a cyanation reaction mechanism via unique thiol redox signaling in the HypCDE complex. Crystal structures of [NiFe] hydrogenase maturation proteins HypC, HypD, and HypE: insights into cyanation reaction by thiol redox signaling.,Watanabe S, Matsumi R, Arai T, Atomi H, Imanaka T, Miki K Mol Cell. 2007 Jul 6;27(1):29-40. PMID:17612488 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 HypA-HypB-HypC-HypD-HypE-HypF

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