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ENZYME entry: EC

Accepted Name
Red chlorophyll catabolite reductase.
Alternative Name(s)
RCC reductase.
Red Chl catabolite reductase.
Reaction catalysed
Primary fluorescent chlorophyll catabolite + 2 oxidized ferredoxin [iron-sulfur] cluster <=> red chlorophyll catabolite + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H(+)
  • The enzyme participates in chlorophyll degradation, which occurs during leaf senescence and fruit ripening in higher plants.
  • The reaction requires reduced ferredoxin, which is generated from NADPH produced either through the pentose-phosphate pathway or by the action of photosystem I.
  • This reaction takes place while red chlorophyll catabolite is still bound to EC
  • Depending on the plant species used as the source of enzyme, one of two possible C-1 epimers of primary fluorescent chlorophyll catabolite (pFCC), pFCC-1 or pFCC-2, is normally formed, with all genera or species within a family producing the same isomer.
  • After modification and export, pFCCs are eventually imported into the vacuole, where the acidic environment causes their non-enzymic conversion into colorless breakdown products called non-fluorescent chlorophyll catabolites (NCCs).
  • Formerly EC
PRIAM enzyme-specific profiles1.3.7.12
KEGG Ligand Database for Enzyme Nomenclature1.3.7.12
IUBMB Enzyme Nomenclature1.3.7.12
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