Journal
ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY COMMUNICATIONS
Volume 62, Issue -, Pages 215-217Publisher
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S174430910600296X
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A novel cytochrome c nitrite reductase (TvNiR) was isolated from the haloalkalophilic bacterium Thioalkalivibrio nitratireducens. The enzyme catalyses nitrite and hydroxylamine reduction, with ammonia as the only product of both reactions. It consists of 525 amino-acid residues and contains eight haems c. TvNiR crystals were grown by the hanging-drop vapour-diffusion technique. The crystals display cubic symmetry and belong to space group P2(1)3, with unitcell parameter a = 194 angstrom. A native data set was obtained to 1.5 angstrom resolution. The structure was solved by the SAD technique using the data collected at the Fe absorption peak wavelength.
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