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EC 1.3.7.7 Details
show Brenda entryEC number
1.3.7.7
Accepted name
ferredoxin:protochlorophyllide reductase (ATP-dependent)
Reaction
chlorophyllide a + oxidized ferredoxin + 2 ADP + 2 phosphate = protochlorophyllide a + reduced ferredoxin + 2 ATP + 2 H2O
Other name(s)
light-independent protochlorophyllide reductase
Systematic name
ATP-dependent ferredoxin:protochlorophyllide-a 7,8-oxidoreductase
Comment
Occurs in photosynthetic bacteria, cyanobacteria, green algae and gymnosperms. The enzyme catalyses trans-reduction of the D-ring of protochlorophyllide; the product has the (7S,8S)-configuration. Unlike EC 1.3.1.33 (protochlorophyllide reductase), light is not required. The enzyme contains a [4Fe-4S] cluster, and structurally resembles the Fe protein/MoFe protein complex of nitrogenase (EC 1.18.6.1), which catalyses an ATP-driven reduction.
History
created 2011, modified 2013
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1 Oxidoreductases
1.1 Acting on the CH-OH group of donors
1.14.13.45 created 1992, deleted 2003
