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A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_10. Read more about EC 7 here.

ENZYME entry: EC 1.3.7.12

Accepted Name
Red chlorophyll catabolite reductase.
Alternative Name(s)
RCC reductase.
RCCR.
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(+)
Comment(s)
  • 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 1.14.15.17.
  • 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 1.3.1.80.
Cross-references
BRENDA1.3.7.12
EC2PDB1.3.7.12
ExplorEnz1.3.7.12
PRIAM enzyme-specific profiles1.3.7.12
KEGG Ligand Database for Enzyme Nomenclature1.3.7.12
IUBMB Enzyme Nomenclature1.3.7.12
IntEnz1.3.7.12
MEDLINEFind literature relating to 1.3.7.12
MetaCyc1.3.7.12
UniProtKB/Swiss-Prot
Q8LDU4, RCCR_ARATH;  Q9MTQ6, RCCR_HORVU;  

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.3.7.-
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