Results 21 to 30 of about 12,459 (136)
Angewandte Chemie, EarlyView.Directional control within the secondary coordination sphere redefines CO2 reduction by iron porphyrins. Simply rearranging identical urea hydrogen‐bond donors modulates reactivity, revealing that optimal catalysis does not only arise from maximal intermediate stabilization, but also from directional, adaptive non‐covalent interactions that balance ...
Ashutosh Vishwakarma +7 more
wiley +2 more sources
Characterization of an M-Cluster-Substituted Nitrogenase VFe Protein
mBio, 2018 The Mo- and V-nitrogenases are two homologous members of the nitrogenase family that are distinguished mainly by the presence of different heterometals (Mo or V) at their respective cofactor sites (M- or V-cluster).
Johannes G. Rebelein +4 more
doaj +1 more source
Angewandte Chemie, EarlyView.Self‐assembled tetrahedral CoI4 clusters supported by simple bipyridine‐based ligands undergo core rearrangement to cleave S─F and C(sp2)─F bond, forming fluoride‐bridged tetracobalt(II)‐oxo clusters, while exposure of cobalt(I) clusters to molecular oxygen yields cubane‐type cobalt(III) oxo clusters.
Hoan M. Dinh +4 more
wiley +2 more sources
Nitrogenase beyond the Resting State: A Structural Perspective
Molecules, 2023 Nitrogenases have the remarkable ability to catalyze the reduction of dinitrogen to ammonia under physiological conditions. How does this happen? The current view of the nitrogenase mechanism focuses on the role of hydrides, the binding of dinitrogen in ...
Rebeccah A. Warmack, Douglas C. Rees
doaj +1 more source
Gain‐of‐Function Engineering of the NifEN Scaffold Into a Self‐Assembling Nitrogenase
Angewandte Chemie, EarlyView.From scaffold to enzyme: Systematic engineering of the cofactor maturation scaffold NifEN reconstructs the P→M electron relay along with cofactor coordination and proton gating at the S2B site, converting NifEN into a functional nitrogenase capable of ATP‐dependent N2 reduction both in vitro and in vivo.
Yimo Yang +4 more
wiley +2 more sources
Frontiers in Chemistry, 2021 Fast and reliable industrial production of ammonia (NH3) is fundamentally sustaining modern society. Since the early 20th Century, NH3 has been synthesized via the Haber–Bosch process, running at conditions of around 350–500°C and 100–200 times ...
Rebeca González-Cabaleiro +2 more
doaj +1 more source
Al-Kauniyah Jurnal Biologi, 2016 Abstrak Penambatan nitrogen oleh bakteri rhizosfer dapat dimanfaatkan untuk menyiasati dampak salinitas pada tanah sawah pesisir. Kemampuan tersebut disebabkan oleh aktivitas nitrogenase yang disandikan gen nifH pada komponen II.
Dwi Ningsih Susilowati, Mamik Setyowati
doaj +1 more source
The Proteogenome of Symbiotic Frankia alni in Alnus glutinosa Nodules
Microorganisms, 2022 Omics are the most promising approaches to investigate microbes for which no genetic tools exist such as the nitrogen-fixing symbiotic Frankia. A proteogenomic analysis of symbiotic Frankia alni was done by comparing those proteins more and less abundant
Petar Pujic +6 more
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Applied and Environmental MicrobiologyIn addition to catalyzing the biological nitrogen fixation, iron-only (Fe-only) nitrogenase is also able to reduce carbon dioxide (CO2) to formate (HCOO−) and methane (CH4).
Yan Zeng +7 more
doaj +1 more source
Microbiology Spectrum, 2021 In Anabaena variabilis, the nif1 genes, which are activated by CnfR1, produce a Mo-nitrogenase that is expressed only in heterocysts. Similarly, the nif2 genes, which are activated by CnfR2, make a Mo-nitrogenase that is expressed only in anaerobic ...
Brenda S. Pratte, Teresa Thiel
doaj +1 more source