MF_00353

Light-independent protochlorophyllide reductase subunit B [bchB]

HAMAP entry
Member databaseHAMAP
HAMAP typefamily
Short nameChlB_BchB

Description
Imported from IPR005969

Synonym: dark protochlorophyllide reductase

Protochlorophyllide reductase catalyzes the reductive formation of chlorophyllide from protochlorophyllide during biosynthesis of chlorophylls and bacteriochlorophylls. The light-independent (dark) form of protochlorophyllide reductase plays a key role in the ability of gymnosperms, algae, and photosynthetic bacteria to form chlorophyll in the dark. Genetic and sequence analyses have indicated that dark protochlorophyllide reductase consists of three protein subunits that exhibit significant sequence similarity to the three subunits of nitrogenase, which catalyzes the reductive formation of ammonia from dinitrogen. Dark protochlorophyllide reductase activity was shown to be dependent on the presence of all three subunits, ATP, and the reductant dithionite
[1]
.

References
Imported from IPR005969

1.Reconstitution of light-independent protochlorophyllide reductase from purified bchl and BchN-BchB subunits. In vitro confirmation of nitrogenase-like features of a bacteriochlorophyll biosynthesis enzyme. Fujita Y, Bauer CE. J. Biol. Chem. 275, 23583-8, (2000). View articlePMID: 10811655

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