Nitrogenase/oxidoreductase, component 1 (IPR000510)

Short name: Nase/OxRdtase_comp1

Overlapping homologous superfamilies


Domain relationships



Enzymes belonging to this family include cofactor-requiring nitrogenases and protochlorophyllide reductase. The key enzymatic reactions in nitrogen fixation are catalysed by the nitrogenase complex, which has two components, the iron protein (component 2), and a component (component 1) which is either a molybdenum-iron, vanadium-iron or iron-iron protein. The enzyme (EC: forms a hexamer of two alpha, two beta and two delta chains. Protochlorophyllide reductase (EC: is involved in the light-dependent accumulation of chlorophyll, probably at the step of reduction of protochlorophyllide to chlorophyllide.

GO terms

Biological Process

GO:0055114 oxidation-reduction process

Molecular Function

GO:0016491 oxidoreductase activity

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.