PMID:18163615
| Citation |
Zhang, L, Nelson, KJ, Rajagopalan, KV and George, GN (2008) Structure of the molybdenum site of Escherichia coli trimethylamine N-oxide reductase. Inorg Chem 47:1074-8 |
|---|---|
| Abstract |
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. |
| Links |
PubMed Online version:10.1021/ic701956f |
| Keywords |
Escherichia coli/enzymology; Models, Molecular; Oxidoreductases Acting on CH-NH Group Donors/chemistry; Protein Conformation; Recombinant Proteins/chemistry |
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