1yk4
From Proteopedia
Ultra-high resolution structure of Pyrococcus abyssi rubredoxin W4L/R5S
Structural highlights
FunctionRUBR_PYRAB Rubredoxin is a small nonheme, iron protein lacking acid-labile sulfide. Its single Fe, chelated to 4 Cys, functions as an electron acceptor and may also stabilize the conformation of the molecule (By similarity). 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 PubMedThe crystal structure of Pyrococcus abyssi rubredoxin mutant W4L/R5S was solved by direct methods. The model of the air-oxidized protein was refined by partially restrained full-matrix least-squares refinement against intensity data to 0.69 A resolution. This first ultrahigh-resolution structure of a rubredoxin provides very detailed and precise information about the Fe(SCys)(4) centre and its environment, the peptide-backbone stereochemistry, H atoms and hydrogen bonds, static and dynamic disorder, the solvent structure and the electron-density distribution. P. abyssi rubredoxin W4L/R5S is the first of a series of mutants studied by atomic and ultrahigh-resolution X-ray crystallography which are expected to contribute to the understanding of structure-function relationships in iron-sulfur proteins. Ultrahigh-resolution study on Pyrococcus abyssi rubredoxin. I. 0.69 A X-ray structure of mutant W4L/R5S.,Bonisch H, Schmidt CL, Bianco P, Ladenstein R Acta Crystallogr D Biol Crystallogr. 2005 Jul;61(Pt 7):990-1004. Epub 2005, Jun 24. PMID:15983423[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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