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Literature summary for 1.3.7.12 extracted from

  • Hörtensteiner, S.; Wüthrich, K.L.; Matile, P.; Ongania, K.H.; Kräutler, B.
    The key step in chlorophyll breakdown in higher plants. Cleavage of pheophorbide a macrocycle by a monooxygenase (1998), J. Biol. Chem., 273, 15335-15339.
    View publication on PubMed
Search for more literature for 1.3.7.12

Localization

Localization Comment Organism GeneOntology No. Textmining
chloroplast stroma
-
 Brassica napus 9570
-
gerontoplast stroma
-
 Brassica napus 1905506
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
red chlorophyll catabolite + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ Brassica napus
-
 primary fluorescent chlorophyll catabolite + 2 oxidized ferredoxin [iron-sulfur] cluster
-
 ?

Organism

Organism UniProt Comment Textmining
Brassica napus Q1ELT7
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
red chlorophyll catabolite + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+
-
 Brassica napus primary fluorescent chlorophyll catabolite + 2 oxidized ferredoxin [iron-sulfur] cluster
-
 ?
red chlorophyll catabolite + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+
-
 Brassica napus primary fluorescent chlorophyll catabolite + 2 oxidized ferredoxin [iron-sulfur] cluster product epimer Bn-FCC-2 ?

Synonyms

Synonyms Comment Organism
RCC reductase
-
 Brassica napus

Cofactor

Cofactor Comment Organism Structure
Ferredoxin
-
 Brassica napus

General Information

General Information Comment Organism
metabolism The key step in Chl breakdown in green plants, the cleavage reaction of the porphinoid macrocycle, is catalyzed by an oxygenase that specifically recognizes pheophorbide a (Pheide a). The conversion of Pheide a to a primary blue fluorescent catabolite (pFCC) requires the joint action of PaO and the soluble stroma-located enzyme RCC reductase that reduces the intermediary red catabolite (RCC) to pFCC, structures of breakdown products of chlorophyll, overview Brassica napus
physiological function the conversion of Pheide a to a primary blue fluorescent catabolite (pFCC) requires the joint action of PaO and a soluble stroma-located enzyme that reduces an intermediary red catabolite (RCC) to pFCC. Both PaO and RCC reductase require reduced ferredoxin as reductant. Although RCC reductase is present at all stages of development and in all tissues examined, PaO seems to occur in gerontoplasts exclusively Brassica napus