Results 11 to 20 of about 38,650 (270)

Classifying the metal dependence of uncharacterized nitrogenases [PDF]

open access: yesFrontiers in Microbiology, 2013
Nitrogenase enzymes have evolved complex iron-sulfur (Fe-S) containing cofactors that most commonly contain molybdenum (MoFe, Nif) as a heterometal but also exist as vanadium (VFe, Vnf) and heterometal independent (Fe-only, Anf) forms.
Shawn E Mcglynn   +3 more
doaj   +4 more sources

Functional Nitrogenase Cofactor Maturase NifB in Mitochondria and Chloroplasts of Nicotiana benthamiana

open access: yesmBio, 2022
Engineering plants to synthesize nitrogenase and assimilate atmospheric N2 will reduce crop dependency on industrial N fertilizers. This technology can be achieved by expressing prokaryotic nitrogen fixation gene products for the assembly of a functional
Xi Jiang   +8 more
doaj   +1 more source

Rhodobacter capsulatus AnfA is essential for production of Fe‐nitrogenase proteins but dispensable for cofactor biosynthesis and electron supply

open access: yesMicrobiologyOpen, 2020
The photosynthetic α‐proteobacterium Rhodobacter capsulatus reduces and thereby fixes atmospheric dinitrogen (N2) by a molybdenum (Mo)‐nitrogenase and an iron‐only (Fe)‐nitrogenase.
Lisa Demtröder   +2 more
doaj   +1 more source

Nitrogenase activity associated with codium species from New Zealand marine habitats [PDF]

open access: yes, 1978
Nitrogenase activity, measured as acetylene reduction, was recorded at rates up to 1028 nmol.h \g * dry weight for Codium adhaerens (Cabr.) Ag. var. convolutum Dellow and Codium fragile (Sur.) Hariot subsp.
_____   +8 more
core   +2 more sources

Nitrogenase resurrection and the evolution of a singular enzymatic mechanism

open access: yeseLife, 2023
The planetary biosphere is powered by a suite of key metabolic innovations that emerged early in the history of life. However, it is unknown whether life has always followed the same set of strategies for performing these critical tasks.
Amanda K Garcia   +6 more
doaj   +1 more source

Electron Transfer Precedes ATP Hydrolysis during Nitrogenase Catalysis [PDF]

open access: yes, 2013
The biological reduction of N2 to NH3 catalyzed by Mo-dependent nitrogenase requires at least eight rounds of a complex cycle of events associated with ATP-driven electron transfer (ET) from the Fe protein to the catalytic MoFe protein, with each ET ...
Antony, Edwin   +7 more
core   +2 more sources

An alternative path for the evolution of biological nitrogen fixation

open access: yesFrontiers in Microbiology, 2011
Nitrogenase catalyzed nitrogen fixation is the process by which life converts dinitrogen gas into fixed nitrogen in the form of bioavailable ammonia. The most common form of nitrogenase today requires a complex metal cluster containing molybdenum (Mo ...
Eric S Boyd   +2 more
doaj   +1 more source

GmTNRP1, associated with rhizobial type‐III effector NopT, regulates nitrogenase activity in the nodules of soybean (Glycine max)

open access: yesFood and Energy Security, 2023
Soybean is a rich source of protein and oil for humans. It forms a symbiotic association with rhizobia to fix atmospheric nitrogen for its growth and development. Rhizobial type‐III effectors act as important signaling molecules in symbiosis.
Chao Ma   +9 more
doaj   +1 more source

Nitrogenase and homologs [PDF]

open access: yesJBIC Journal of Biological Inorganic Chemistry, 2014
Nitrogenase catalyzes biological nitrogen fixation, a key step in the global nitrogen cycle. Three homologous nitrogenases have been identified to date, along with several structural and/or functional homologs of this enzyme that are involved in nitrogenase assembly, bacteriochlorophyll biosynthesis and methanogenic process, respectively.
Hu, Yilin, Ribbe, Markus W
openaire   +4 more sources

Nitrogenase assembly

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2013
Nitrogenase contains two unique metalloclusters: the P-cluster and the M-cluster. The assembly processes of P- and M-clusters are arguably the most complicated processes in bioinorganic chemistry. There is considerable interest in decoding the biosynthetic mechanisms of the P- and M-clusters, because these clusters are not only biologically important ...
Hu, Yilin, Ribbe, Markus W.
openaire   +2 more sources

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