Results 231 to 240 of about 38,650 (270)
Some of the next articles are maybe not open access.
Related searches:
Related searches:
2018
Biological nitrogen fixation, the conversion of dinitrogen (N2) into ammonia (NH3), stands as a particularly challenging chemical process. As the entry point into a bioavailable form of nitrogen, biological nitrogen fixation is a critical step in the global nitrogen cycle.
Nathaniel S, Sickerman +2 more
openaire +2 more sources
Biological nitrogen fixation, the conversion of dinitrogen (N2) into ammonia (NH3), stands as a particularly challenging chemical process. As the entry point into a bioavailable form of nitrogen, biological nitrogen fixation is a critical step in the global nitrogen cycle.
Nathaniel S, Sickerman +2 more
openaire +2 more sources
Nitrogenase-catalyzed reactions
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1972Abstract 1. H2 evolution, N2 reduction and ATP hydrolysis, catalyzed by a particulate nitrogenase from Azotobacter vinelandii, showed similar dependence on the concentration of ATP. Higher concentrations of ATP were inhibitory. 2. Evolution of H2 by nitrogenase under the conditions studied could not be completely stopped. 3.
J C, Hwang, R H, Burris
openaire +2 more sources
Annual Review of Biochemistry, 1984
Publisher Summary Nitrogen fixation ranks with photosynthesis as a process of fundamental importance to all life on earth. The biochemical process described by nitrogen fixation is the reduction of N2 to NH3, which can then be used for the synthesis of amino acids, nucleic acids, and other essential nitrogenous compounds.
V K, Shah +3 more
openaire +2 more sources
Publisher Summary Nitrogen fixation ranks with photosynthesis as a process of fundamental importance to all life on earth. The biochemical process described by nitrogen fixation is the reduction of N2 to NH3, which can then be used for the synthesis of amino acids, nucleic acids, and other essential nitrogenous compounds.
V K, Shah +3 more
openaire +2 more sources
Dalton Transactions, 2010
In seeking to mimic the hydrogenation of N(2) to NH(3) as effected under mild conditions by the enzyme nitrogenase, three classes of known metal sulfide clusters that resemble the NFe(7)MoS(9) core of FeMo-co, the active site of nitrogenase, have been assessed theoretically.
openaire +2 more sources
In seeking to mimic the hydrogenation of N(2) to NH(3) as effected under mild conditions by the enzyme nitrogenase, three classes of known metal sulfide clusters that resemble the NFe(7)MoS(9) core of FeMo-co, the active site of nitrogenase, have been assessed theoretically.
openaire +2 more sources
Journal of Inorganic Biochemistry, 2000
The topic, vanadium nitrogenase, is reviewed with respect to biological characteristics and findings on its structure and functions. Structural models (vanadium complexes containing ligands related to the active center in the iron-vanadium cofactor) and functional models for the reductive protonation of dinitrogen, the activation of alkynes and ...
openaire +2 more sources
The topic, vanadium nitrogenase, is reviewed with respect to biological characteristics and findings on its structure and functions. Structural models (vanadium complexes containing ligands related to the active center in the iron-vanadium cofactor) and functional models for the reductive protonation of dinitrogen, the activation of alkynes and ...
openaire +2 more sources
Nitrogenases without molybdenum
Trends in Biochemical Sciences, 1989For 50 years molybdenum had been considered to have an indispensable catalytic function for nitrogen fixation. Two nitrogenases recently isolated from the bacterium Azotobacter have changed this view. One is a vanadium-containing enzyme and the other lacks both molybdenum and vanadium. Similar nitrogenases may occur in other nitrogen-fixing organisms.
openaire +2 more sources
Nitrogenase Bioelectrocatalysis
ECS Meeting Abstracts, 2019Nitrogenase is the only enzyme capable of nitrogen reduction to ammonia. This talk will discuss cobaltocene and methyl viologen mediation schemes for MoFe and VFe nitrogenase, as well as strategies for nitrogenase bioelectrocatalysis in air. Bioelectrocatalysis of proton reduction, azide reduction, nitrite reduction, nitrogen reduction, and carbon ...
openaire +1 more source
1977
The biochemistry of nitrogenase has been reviewed so frequently in the past few years that the production of a comprehensive review at this point seems unwarranted. My colleagues and I have published two lengthy reviews in which most of the recent developments have been analyzed (Orme-Johnson and Davis, 1977; Orme-Johnson et al., 1977).
openaire +2 more sources
The biochemistry of nitrogenase has been reviewed so frequently in the past few years that the production of a comprehensive review at this point seems unwarranted. My colleagues and I have published two lengthy reviews in which most of the recent developments have been analyzed (Orme-Johnson and Davis, 1977; Orme-Johnson et al., 1977).
openaire +2 more sources