Siroheme

Siroheme is a partially reduced iron porphyrin found in the enzyme nitrite reductase.

See also: The Nitrogen Cycle, Nitrogen Fixation, Utilization of Ammonia, Nitrate Reductase, Dimethylsulfoxide Reductase, , Ferredoxin

INTERNET LINK: Nitrate Uptake and Reduction, Metabolism of Sulfur-Containing Amino Acids