Nitrogenase - Wikipedia
网页Nitrogenases are enzymes (EC 1.18.6.1 EC 1.19.6.1) that are produced by certain bacteria, such as cyanobacteria (blue-green bacteria) and rhizobacteria. These enzymes are responsible for the reduction of nitrogen (N 2) to ammonia (NH 3).
Nitrogenase Definition & Meaning - Merriam-Webster
网页2024年7月17日 · The meaning of NITROGENASE is an enzyme of various nitrogen-fixing bacteria that catalyzes the reduction of molecular nitrogen to ammonia.
Mechanism of Nitrogen Fixation by Nitrogenase: The Next Stage
网页2014年1月27日 · In 1934, Burk coined the term “nitrogenase” for the enzyme that catalyzes the conversion of N 2 to a bioaccessible form of nitrogen, and initiated the first meaningful studies of nitrogenase in living cells.
5.15A: Nitrogenase and Nitrogen Fixation - Biology LibreTexts
网页2022年12月24日 · Nitrogenases are enzymes used by some organisms to fix atmospheric nitrogen gas (N 2). There is only one known family of enzymes that accomplishes this process. All nitrogenases have an iron – and sulfur-containing cofactor that includes a heterometal complex in the active site (e.g., FeMoCo).
Nitrogenase - an overview | ScienceDirect Topics
网页Nitrogenase is a complex, bacterial enzyme that catalyzes the ATP-dependent reduction of dinitrogen (N 2) to ammonia (NH 3). In its most prevalent form, it consists of two proteins, the catalytic molybdenum-iron protein (MoFeP) and its …
Nitrogenase - an overview | ScienceDirect Topics
网页Nitrogenase (EC 1.18.6.1) is an enzyme uniquely capable of catalyzing the reduction of inert atmospheric dinitrogen to ammonia. Though nitrogenase is possessed by a broad diversity of both extant anaerobic and aerobic prokaryotes, it is irreversibly inhibited by oxygen [e.g. Ref. [135]].
5.15C: Nitrogen Fixation Mechanism - Biology LibreTexts
网页2022年12月24日 · Biological nitrogen fixation (BNF) occurs when atmospheric nitrogen is converted to ammonia by an enzyme called nitrogenase. The reaction for BNF is: \[\ce{N2 + 8 H^{+} + 8 e^{−} → 2 NH3 + H2}.\] This type of reaction results in N 2 gaining electrons (see above equation) and is thus termed a reduction reaction. The exact mechanism of ...
Unveiling the final nitrogenase | Nature Reviews Chemistry
网页2023年5月26日 · Nitrogenases are complex enzymes found in certain bacteria, which enable the six-electron reduction of atmospheric nitrogen to ammonia. All nitrogenases contain an Fe protein, which delivers these...
The mechanism for nitrogenase including all steps
网页2019年4月12日 · Nitrogenases are the only enzymes in nature that can activate the very strong triple bond of the nitrogen molecule. The active site of the most common form of nitrogenase has an iron cluster with seven irons connected by sulfides, and also includes a molybdenum atom, see Fig. 1.
5.3: Nitrogenase - Chemistry LibreTexts
网页The mechanism by which nitrogenase reduces nitorgen to ammonia is likely somewhat different from the mechanism in the Born-Haber Process. Rather than treatment with hydrogen gas, under biological conditions the mechanism is likely to involve reduction via individual electrons and protons.
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