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Title: Structure of the Molybdenum Site of EEcherichia Coli Trimethylamine N-Oxide Reductase

Journal Article · · Inorg. Chem 47:1074,2008
OSTI ID:953526

We report a structural characterization of the molybdenum site of recombinant Escherichia coli trimethylamine N-oxide (TMAO) reductase using X-ray absorption spectroscopy. The enzyme active site shows considerable similarity to that of dimethyl sulfoxide (DMSO) reductase, in that, like DMSO reductase, the TMAO reductase active site can exist in multiple forms. Examination of the published crystal structure of TMAO oxidase from Shewanella massilia indicates that the postulated Mo coordination structure is chemically impossible. The presence of multiple active site structures provides a potential explanation for the anomalous features reported from the crystal structure.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76SF00515
OSTI ID:
953526
Report Number(s):
SLAC-REPRINT-2009-357; INOCAJ; TRN: US201002%%1354
Journal Information:
Inorg. Chem 47:1074,2008, Vol. 47, Issue 3; ISSN 0020-1669
Country of Publication:
United States
Language:
English