1bc6

7-FE FERREDOXIN FROM BACILLUS SCHLEGELII, NMR, 20 STRUCTURES7-FE FERREDOXIN FROM BACILLUS SCHLEGELII, NMR, 20 STRUCTURES

Structural highlights 1bc6 is a 1 chain structure with sequence from Hydrogenibacillus schlegelii. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Solution NMR Ligands: , Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function FER_HYDSH 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 The solution structure of the paramagnetic seven-iron ferredoxin from Bacillus schlegelii in its oxidized form has been determined by 1H NMR. The protein, which contains 77 amino acids, is thermostable. Seventy-two residues and 79% of all theoretically expected proton resonances have been assigned. The structure has been determined through torsion angle dynamics calculations with the program DYANA, using 966 meaningful NOEs (from a total of 1305), hydrogen bond constraints, and NMR derived dihedral angle constraints for the cluster ligating cysteines, and by using crystallographic information to build up the two clusters. Afterwards, restrained energy minimization and restrained molecular dynamics were applied to each conformer of the family. The final family of 20 structures has RMSD values from the mean structure of 0.68 A for the backbone atoms and of 1.16 A for all heavy atoms. The contributions to the thermal stability of the B. schlegelii ferredoxin are discussed by comparing the present structure to that of the less stable Azotobacter vinelandii ferredoxin I which is the only other available structure of a bacterial seven-iron ferredoxin. It is proposed that the hydrophobic interactions and the hydrogen bond network linking the N-terminus and the C-terminus together and a high number of salt bridges contribute to the stability. Solution structure of the oxidized Fe7S8 ferredoxin from the thermophilic bacterium Bacillus schlegelii by 1H NMR spectroscopy.,Aono S, Bentrop D, Bertini I, Donaire A, Luchinat C, Niikura Y, Rosato A Biochemistry. 1998 Jul 7;37(27):9812-26. PMID:9657695 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Ferredoxin 3D structures

spinqualitylabelsall models 1bc6 Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image