ID   1.3.7.12
DE   red chlorophyll catabolite reductase.
AN   RCCR.
AN   RCC reductase.
AN   red Chl catabolite reductase.
CA   2 oxidized [2Fe-2S]-[ferredoxin] + primary fluorescent chlorophyll
CA   catabolite = 3 H(+) + red chlorophyll catabolite + 2 reduced [2Fe-2S]-
CA   [ferredoxin].
CC   -!- The enzyme participates in chlorophyll degradation, which occurs
CC       during leaf senescence and fruit ripening in higher plants.
CC   -!- The reaction requires reduced ferredoxin, which is generated from
CC       NADPH produced either through the pentose-phosphate pathway or by the
CC       action of photosystem I.
CC   -!- This reaction takes place while red chlorophyll catabolite is still
CC       bound to EC 1.14.15.17.
CC   -!- Depending on the plant species used as the source of enzyme, one of
CC       two possible C-1 epimers of primary fluorescent chlorophyll
CC       catabolite (pFCC), pFCC-1 or pFCC-2, is normally formed, with all
CC       genera or species within a family producing the same isomer.
CC   -!- After modification and export, pFCCs are eventually imported into the
CC       vacuole, where the acidic environment causes their non-enzymic
CC       conversion into colorless breakdown products called non-fluorescent
CC       chlorophyll catabolites (NCCs).
CC   -!- Formerly EC 1.3.1.80.
DR   Q338P6, RCCR1_ORYSJ;  Q8LDU4, RCCR_ARATH ;  Q9MTQ6, RCCR_HORVU ;
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