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'''X-RAY STRUCTURE OF HYDROXYLAMINE OXIDOREDUCTASE''' | '''X-RAY STRUCTURE OF HYDROXYLAMINE OXIDOREDUCTASE''' | ||
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[[Category: Moriyama, H.]] | [[Category: Moriyama, H.]] | ||
[[Category: Tanaka, N.]] | [[Category: Tanaka, N.]] | ||
[[Category: | [[Category: Nitrification]] | ||
[[Category: | [[Category: Oxidoreductase]] | ||
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Revision as of 13:17, 2 May 2008
X-RAY STRUCTURE OF HYDROXYLAMINE OXIDOREDUCTASE
Overview
The 2.8 A crystal structure of hydroxylamine oxidoreductase of a nitrifying chemoautotrophic bacterium, Nitrosomonas europaea, is described. Twenty-four haems lie in the centre bottom of the trimeric molecule, localized in four clusters within each monomer. The haem clusters within the trimer are aligned to form a ring that has inlet and outlet sites. The inlet is occupied by a novel haem, P460, and there are two possible outlet sites per monomer formed by paired haems lying within a cavity or cleft on the protein surface. The structure suggests pathways by which electron transfer may occur through the precisely arranged haems and provides a framework for the interpretation of previous and future biochemical and genetic observations.
About this Structure
1FGJ is a Single protein structure of sequence from Nitrosomonas europaea. Full crystallographic information is available from OCA.
Reference
The 2.8 A structure of hydroxylamine oxidoreductase from a nitrifying chemoautotrophic bacterium, Nitrosomonas europaea., Igarashi N, Moriyama H, Fujiwara T, Fukumori Y, Tanaka N, Nat Struct Biol. 1997 Apr;4(4):276-84. PMID:9095195 Page seeded by OCA on Fri May 2 16:17:58 2008
