Results 11 to 20 of about 47,392 (275)
Regulatory response to a hybrid ancestral nitrogenase in Azotobacter vinelandii
Biological nitrogen fixation, the microbial reduction of atmospheric nitrogen to bioavailable ammonia, represents both a major limitation on biological productivity and a highly desirable engineering target for synthetic biology. However, the engineering
Alex J. Rivier +4 more
doaj +1 more source
Structural insights into the iron nitrogenase complex
Nitrogenases are best known for catalyzing the reduction of dinitrogen to ammonia at a complex metallic cofactor. Recently, nitrogenases were shown to reduce carbon dioxide (CO_2) and carbon monoxide to hydrocarbons, offering a pathway to recycle carbon ...
Frederik V. Schmidt +6 more
semanticscholar +1 more source
Since nitrogenase is irreversibly inactivated within a few minutes after exposure to oxygen, current studies on the heterologous expression of nitrogenase are limited to anaerobic conditions.
Ren Takimoto +6 more
doaj +1 more source
Structures of the nitrogenase complex prepared under catalytic turnover conditions
The enzyme nitrogenase couples adenosine triphosphate (ATP) hydrolysis to the multielectron reduction of atmospheric dinitrogen into ammonia. Despite extensive research, the mechanistic details of ATP-dependent energy transduction and dinitrogen ...
H. Rutledge +4 more
semanticscholar +1 more source
Potential of Phototrophic Purple Nonsulfur Bacteria to Fix Nitrogen in Rice Fields
Biological nitrogen fixation catalyzed by Mo-nitrogenase of symbiotic diazotrophs has attracted interest because its potential to supply plant-available nitrogen offers an alternative way of using chemical fertilizers for sustainable agriculture ...
Isamu Maeda
doaj +1 more source
Nitrogenase is the sole enzyme responsible for the ATP‐dependent conversion of atmospheric dinitrogen into the bioavailable form of ammonia (NH3), making this protein essential for the maintenance of the nitrogen cycle and thus life itself.
Stephanie D. Threatt, D. Rees
semanticscholar +1 more source
Water changes are predicted to regulate physiological activities of bryophytes characterized by poikilohydric gametophytes. In montane forest ecosystems, nitrogen(N)–fixing bryophyte–cyanobacteria associations are main N resources.
Xiaoyang Fan, Guodi Yuan, Wenyao Liu
doaj +1 more source
Nitrogenase Fe Protein: A Multi-Tasking Player in Substrate Reduction and Metallocluster Assembly
The Fe protein of nitrogenase plays multiple roles in substrate reduction and metallocluster assembly. Best known for its function to transfer electrons to its catalytic partner during nitrogenase catalysis, the Fe protein is also a key player in the ...
Markus W. Ribbe +7 more
doaj +1 more source
The functional versatility of the Fe protein, the reductase component of nitrogenase, makes it an appealing target for heterologous expression, which could facilitate future biotechnological adaptations of nitrogenase-based production of valuable ...
Joseph B. Solomon +7 more
doaj +1 more source
Two ligand-binding sites in CO-reducing V nitrogenase reveal a general mechanistic principle
A structure of V nitrogenase with two CO ligands outlines a route for C–C coupling in Fischer-Tropsch–like hydrocarbon formation. Besides its role in biological nitrogen fixation, vanadium-containing nitrogenase also reduces carbon monoxide (CO) to ...
M. Rohde +4 more
semanticscholar +1 more source

