2pac
From Proteopedia
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SOLUTION STRUCTURE OF FE(II) CYTOCHROME C551 FROM PSEUDOMONAS AERUGINOSA AS DETERMINED BY TWO-DIMENSIONAL 1H NMR
Overview
The solution structure of Fe(II) cytochrome c551 from Pseudomonas, aeruginosa based on 2D 1H NMR data is reported. Two sets of structure, calculations were completed with a combination of simulated annealing and, distance geometry calculations: one set of 20 structures included the, heme-peptide covalent linkages, and one set of 10 structures excluded, them. The main-chain atoms were well constrained within the two structural, ensembles (1.30 and 1.35 A average RMSD, respectively) except for two, regions spanning residues 30-40 and 60-70. The results were essentially, the same when global fold comparisons were made between the ensembles with, an average RMSD of 1.33 A. In total, 556 constraints were used, including, 479 NOEs, 53 volume constraints, and 24 other distances. This report, represents the first solution structure determination of a heme protein by, 2D 1H NMR and should provide a basis for the application of these, techniques to other proteins containing large prosthetic groups or, cofactors.
About this Structure
2PAC is a Single protein structure of sequence from Pseudomonas aeruginosa with HEM as ligand. Full crystallographic information is available from OCA.
Reference
Solution structure of Fe(II) cytochrome c551 from Pseudomonas aeruginosa as determined by two-dimensional 1H NMR., Detlefsen DJ, Thanabal V, Pecoraro VL, Wagner G, Biochemistry. 1991 Sep 17;30(37):9040-6. PMID:1654086
Page seeded by OCA on Wed Nov 21 13:28:40 2007
