Molybdenum enzymes, cofactors, and systems ... - ACS Publications

Molybdenum enzymes, cofactors, and systems: The chemical

Nov 11, 1985 - state and tungsten too hard to reduce from the hexavalent state . . . - . - . Molybdenum chemistry in i& ... necessary to drive the biological Nz-fixation reaction. The organonitrogen compounds produced by ..... averaeed nicture of the

Molybdenum Enzymes, Cofactors, and Model Systems - American

Nason, Î.; Lee, K. Y.; Pan, S. S.; Ketchum, P. Î.; Lamberti, Î.; DeVries, J. Proc. Nat. ... Lipkowitz, B.; Boyd B., Eds.; VCH Publishers Inc., New York, 1991, p. 313.


(2-7), this element was thought to be specifically required for all biological systems ... reductase and other molybdenum enzymes is the presence of molybdenum (77). .... It is interesting that 1-5% of the acetylene reduction activity of the complete


reactivity analogs for dihydrogen, dinitrogen and reduced intermediates, and simple .... 4. 2FeMoco,2Fe8S g. 2. Moco, 2 cyt b. (21). (22). (23M). (25). (26^7). (2829). (30) .... All of the Mo enzymes in Table 1, with the exception of the nitrogenases


subunits of the MoFe protein; and (iii) two FeMo-cofactors, which are entirely ... 6 5. Î¤ â 1 â Î. J = 9'. 226GHz. 2. Azobacter vinelandii. Wild-Type Whole Cells ..... FeMo-cofactor was shown to require the Î±-subunit residue His-195 (50), whic


adenine dinucleotide (MAD), molybdopterin guanine dinucleotide. (MGD) and molybdopterin hypoxanthine dinucleotide (MHD). MPT has been resolved in ...


McO(dete)(H4HMP)Cl2 a. In MeOH. 0. In DMF. spectral behavior of the M0-H4DMP compounds has been traced to an acid/base sensitivity. Figure 6 shows the ...


ing in 2-3 column volumes (Shah and J. Allen, unpublished results). Further ..... rubrwn (Davis and Ludden, unpublished results), it seems unlikely that the.


Chapter 1. Molybdenum Enzymes, Cofactors, and. Chemistry. An Introductory ... and still thrives, molybdenum is the most abundant of the redox-active transition metals. (2). .... 5. D EN ITRIFI CATION. Î. I. A. Î Î NH. 2. \ 2. â¢NITROGEN FIXATION


(4) Johnson, J. L., in Molybdenum and Molybdenyum Containing. Enzymes, Coughlan ... 1984, 106, 1467-1471; Solomonson, L. P.; Barber, M. J.; Howard,. W. D.; Johnson, J. L. ... 1986, 19, 363-370. (19) Cramer, S. P.; Hille, R. J. Am. Chem.

Molybdenum enzymes, cofactors, and systems ... - ACS Publications

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