Ferredoxin thioredoxin reductase catalytic beta subunit (IPR004209)

Short name: FTR_bsu

Overlapping homologous superfamilies

Family relationships


Ferredoxin thioredoxin reductase is a [4FE-4S] protein present in organisms performing oxygenic photosynthesis, and plays an important role in the ferredoxin/thioredoxin regulatory chain. It converts an electron signal (photoreduced ferredoxin) to a thiol signal (reduced thioredoxin), regulating enzymes by reduction of specific disulphide groups. It catalyses the light-dependent activation of several photosynthetis enzymes. Ferredoxin thioredoxin reductase is a heterodimer of subunit alpha and subunit beta. Subunit alpha is the variable subunit, and beta is the catalytic chain [PMID: 7628465].

The structure of the beta subunit has been determined and found to fold around the FeS cluster [PMID: 10649999].

GO terms

Biological Process

GO:0055114 oxidation-reduction process

Molecular Function

GO:0016730 oxidoreductase activity, acting on iron-sulfur proteins as donors

Cellular Component

No terms assigned in this category.

Contributing signatures

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