Retrieving "Allosteric Role" from the archives
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Nitrogenase
Linked via "allosteric role"
$$\text{N}2 + 8\text{H}^+ + 8\text{e}^- + 16\text{ATP} \rightarrow 2\text{NH}3 + \text{H}2 + 16\text{ADP} + 16\text{P}i$$
It is noteworthy that the stoichiometry includes the obligatory co-production of one molecule of hydrogen gas ($\text{H}2$) for every $\text{N}2$ fixed. While this $\text{H}2$ evolution consumes a substantial portion of the available reducing equivalents$ ($electron$s), genetic studies suggest that the $\text{H}2$ serves a critical, though poorly understood,…