1fca

STRUCTURE OF THE FERREDOXIN FROM CLOSTRIDIUM ACIDURICI: MODEL AT 1.8 ANGSTROMS RESOLUTION

spinqualitylabelsall models 1fca, resolution 1.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1fca is a 1 chain structure with sequence from "bacillus_acidi-urici"_liebert_1909 "bacillus acidi-urici" liebert 1909. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: SF4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [FER_CLOAC] Ferredoxins are iron-sulfur proteins that transfer electrons in a wide variety of metabolic reactions. 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 Ferredoxins (Fd) are electron-carrier proteins, the active sites of which are organized around clusters made of iron and inorganic sulfur. The Fd from Clostridium acidurici is 55 amino acids long and contains two [4Fe-4S] clusters. Crystals have been obtained in the space group P4(3)2(1)2, a = b = 34.441 (5), c = 74.778 (9) A. The structure was solved by molecular replacement using the Fd from Peptostreptcoccus asaccharolyticus as a search model, these two ferredoxins having 37 residues in common. Refinement using molecular-dynamics techniques was then initiated. Successive rounds of model building and refinement gave a structure that includes 45 water molecules with R = 15%. At this stage, the electron-density map clearly revealed discrepancies in the position of two amino acids in the published primary sequence. Refinement based on these modifications led to R = 14.3% for 3921 reflections up to 1.8 A, resolution. The geometry of the two clusters has been found to be in good agreement with that previously obtained at a lower resolution. Interactions of polypeptide chain with the [4Fe-4S] clusters, the cluster geometry as well as the hydrogen bonds involving S, Sgamma, N and water molecules are reported. Structure of the ferredoxin from Clostridium acidurici: model at 1.8 A resolution.,TranQui D, Jesior JC Acta Crystallogr D Biol Crystallogr. 1995 Mar 1;51(Pt 2):155-9. PMID:15299316 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Ferredoxin 3D structures

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