Nickel is essential for activation of urease, an enzyme involved with nitrogen metabolism that is required to process urea.

This enzyme participates in nitrogen metabolism and nitrogen assimilation.

Her contributions to the study of nitrogen metabolism led to a better understanding of human disorders in urea synthesis.

It was initially assumed that the alkaloids are the final products of nitrogen metabolism in plants, as urea in mammals.

This enzyme participates in c5-branched dibasic acid metabolism and nitrogen metabolism.

It was proposed that both motifs represent riboswitches involved in nitrogen metabolism.

Nitrogenase is one of the more famous metalloproteins associated with nitrogen metabolism.

The system uses enormous bilobed coelomic chambers filled with ammonium chloride derived as waste products from their nitrogen metabolism.

This enzyme participates in nitrogen metabolism.

This enzyme participates in nitrogen metabolism and in the microbial defense against nitric oxide toxicity.