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chlL | Light-independent protochlorophyllide reductase, iron-sulfur ATP-binding protein; Component of the dark-operative protochlorophyllide reductase (DPOR) that uses Mg-ATP and reduced ferredoxin to reduce ring D of protochlorophyllide (Pchlide) to form chlorophyllide a (Chlide). This reaction is light-independent. The L component serves as a unique electron donor to the NB-component of the complex, and binds Mg-ATP. (286 aa) | ||||
ABB57679.1 | Rubrerythrin. (238 aa) | ||||
acsF | Mg-protoporphyrin IX monomethyl ester (oxidative) cyclase; Catalyzes the formation of the isocyclic ring in chlorophyll biosynthesis. Mediates the cyclase reaction, which results in the formation of divinylprotochlorophyllide (Pchlide) characteristic of all chlorophylls from magnesium-protoporphyrin IX 13-monomethyl ester (MgPMME); Belongs to the AcsF family. (358 aa) | ||||
atpA | ATP synthase F1, alpha subunit; Produces ATP from ADP in the presence of a proton gradient across the membrane. The alpha chain is a regulatory subunit. Belongs to the ATPase alpha/beta chains family. (505 aa) | ||||
sodB | Superoxide dismutase; Destroys superoxide anion radicals which are normally produced within the cells and which are toxic to biological systems; Belongs to the iron/manganese superoxide dismutase family. (229 aa) | ||||
isiA | Iron-stress chlorophyll-binding protein; Functions as an antenna for photosystem I (PSI) under iron- limiting conditions, when phycobilisomes disappear. Also functions as a dissipator of light energy, protecting cells from excessive light under iron-deficient conditions. Sequesters chlorophyll when cells are growing in iron-deficient conditions; it may bind up to 50% of the chlorophyll in iron-starved cells. (342 aa) |