Zobrazeno 1 - 10
of 112
pro vyhledávání: '"L E Mortenson"'
Publikováno v:
Current Microbiology. 30:351-355
The putative products of six Azotobacter vinelandii chromosomal open reading frames (ORFs) were suggested to be involved in dihydrogen (H2) metabolism [Chen and Mortenson (1992) Biochim Biophys Acta 1131, 199-202]. A promoterless lacZ-containing cass
Publikováno v:
Journal of Biological Chemistry. 270:13112-13117
Biological nitrogen fixation catalyzed by purified nitrogenase requires the hydrolysis of a minimum of 16 MgATP for each N2 reduced. In the present study, we demonstrate a central function for Lys-15 of Azotobacter vinelandii nitrogenase iron protein
Autor:
Drozdzewski Pm, He Sh, L. E. Mortenson, Harry D. Peck, T.V. Morgan, Juszczak A, Jean LeGall, Weiguang Fu, DerVartanian Dv, Michael W. W. Adams
Publikováno v:
Biochemistry. 32:4813-4819
The nature of the iron-sulfur clusters in oxidized and reduced forms of Fe-only hydrogenases from Desulfovibrio vulgaris, Thermotoga maritima, and Clostridium pasteurianum has been investigated by resonance Raman spectroscopy. The results indicate th
Publikováno v:
Proceedings of the National Academy of Sciences. 90:1078-1082
Nitrogenase (EC 1.18.6.1) catalyzes the conversion of dinitrogen to ammonia, the central reaction of biological nitrogen fixation. X-ray anomalous diffraction data were analyzed to probe the structures of the metal clusters bound by nitrogenase MoFe
Autor:
L. E. Mortenson, Lance C. Seefeldt
Publikováno v:
Protein Science. 2:93-102
MgATP-binding and hydrolysis are an integral part of the nitrogenase catalytic mechanism. We are exploring the function of MgATP hydrolysis in this reaction by analyzing the properties of the Fe protein (FeP) component of Azotobacter vinelandii nitro
Publikováno v:
Journal of Bacteriology. 174:4549-4557
Azotobacter vinelandii contains a heterodimeric, membrane-bound [NiFe]hydrogenase capable of catalyzing the reversible oxidation of H2. The beta and alpha subunits of the enzyme are encoded by the structural genes hoxK and hoxG, respectively, which a
Autor:
Jack Chien Chen, L. E. Mortenson
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression. 1131:199-202
We reported earlier the identification of two Azotobacter vinelandii open reading frames (ORFs), ORF1 and ORF2, downstream from the hydrogenase structural genes (Chen, J.C. and Mortenson, L.E. (1992) Biochim. Biophys. Acta 1131, 122–124). Sequencin
Publikováno v:
Journal of Biological Chemistry. 267:6680-6688
Nitrogenase binds and hydrolyzes 2MgATP yielding 2MgADP and 2Pi for each electron that is transferred from the iron protein to the MoFe protein. The iron protein alone binds but does not hydrolyze 2MgATP or 2MgADP and the binding of these nucleotides
Publikováno v:
Journal of Magnetic Resonance (1969). 91:227-240
The molybdenum-iron (MoFe) protein of nitrogenase from Clostridium pasteurianum forms monoclinic crystals in space group P21. The unit cell comprises two molecules, each of which possesses a molecular twofold symmetry axis and binds two chemically id
Autor:
W. B. Mims, Jack Peisach, L. E. Mortenson, John McCracken, William H. Orme-Johnson, T. V. Morgan
Publikováno v:
Biochemistry. 29:3077-3082
Mg-ATP binds to the iron protein component of nitrogenase. The magnetic field dependence of the linear electric field effect (LEFE) in pulsed EPR is consistent with a single 4Fe-4S cluster. The LEFE is virtually unaltered when Mg-ATP is bound. Electr