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The Cofactor of Tetrachloroethene Reductive Dehalogenase of Dehalospirillum multivorans Is Norpseudo-B12, a New Type of a Natural Corrinoid by Bernhard Kräutler; Wolfgang Fieber; Sigrid Ostermann; Mario Fasching; Karl-Hans Ongania; Karl Gruber; Christoph Kratky; Christian Mikl; Anke Siebert; Gabriele Diekert is a Chemistry article available to read on EtoBox.
What is The Cofactor of Tetrachloroethene Reductive Dehalogenase of Dehalospirillum multivorans Is Norpseudo-B12, a New Type of a Natural Corrinoid about?
## Dedicated to Professor Duilio Arigoni on the occasion of his 75th birthday The corrinoid cofactor of the tetrachloroethene reductive dehalogenase of Dehalospirillum multivorans was isolated in its Cob-cyano form. This cofactor represents the main corrinoid found in D. multivorans cells. Analysis of the isolated cyano-corrinoid by a combination of HPLC and UV/VIS-absorbance spectroscopy revealed it to be nonidentical to a variety of known natural B 12 derivatives. From high-resolution massspectrometric analysis, the molecular formula of the corrinoid isolated from D. multivorans could be deduced as C 58 H 81 CoN 17 O 14 P. The sample of the novel corrinoid from D. multivorans was further analyzed by UV/VIS, CD, and one-and two-dimensional 1 H-, 13 C-, and 15 N-NMR spectroscopy, which indicated its structure to be closely related to that of pseudovitamin B 12 (Cob-cyano-7''-adeninylcobamide). By the same means, the corrinoid could be shown to differ from pseudovitamin B 12 only by the lack of the methyl group attached to carbon 176, and, therefore, it was named norpseudovitamin B 12 (or, more precisely, 176-norpseudovitamin B 12 ). Norpseudovitamin B 12 represents the first exampl
Who reads The Cofactor of Tetrachloroethene Reductive Dehalogenase of Dehalospirillum multivorans Is Norpseudo-B12, a New Type of a Natural Corrinoid?
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- Author
- Bernhard Kräutler; Wolfgang Fieber; Sigrid Ostermann; Mario Fasching; Karl-Hans Ongania; Karl Gruber; Christoph Kratky; Christian Mikl; Anke Siebert; Gabriele Diekert
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley (ISSN 0018-019X)
- Published
- 2003
- Language
- EN
- Field
- Chemistry (Physical Sciences)