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Literature summary for 1.1.1.219 extracted from

  • Heller, W.; Forkmann, G.; Britsch, L.; Grisebach, H.
    Enzymatic reduction of (+)-dihydroflavonols to flavan-3,4-cis-diols with flower extracts from Matthiola incana and its role in anthocyanin biosynthesis (1985), Planta, 165, 284-287.
    View publication on PubMed

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Matthiola incana reaction in anthocyanidin biosynthesis in plants ?
-
?

Organism

Organism UniProt Comment Textmining
Matthiola incana
-
gillyflower
-

Source Tissue

Source Tissue Comment Organism Textmining
flower
-
Matthiola incana
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.018
-
-
Matthiola incana

Storage Stability

Storage Stability Organism
-70°C, 10% glycerol, crude extract stable for several weeks Matthiola incana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(+)-dihydrokaempferol + NADPH
-
Matthiola incana cis-3,4-leucopelargonidin + NADP+
-
?
(+)-dihydromyricetin + NADPH i.e. 5'-hydroxy-dihydroquercetin Matthiola incana cis-3,4-leucodelphinidin + NADP+ i.e. 5,7,4'-trihydroxyflavan-3,4-cis-diol ?
(+)-dihydroquercetin + NADPH
-
Matthiola incana cis-3,4-leucocyanidin + NADP+
-
?
additional information reaction in anthocyanidin biosynthesis in plants Matthiola incana ?
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Matthiola incana

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.5 6.5 broad optimum Matthiola incana

pH Range

pH Minimum pH Maximum Comment Organism
5.1 7.2 about half-maximal activity at pH 5.1 and 7.2 Matthiola incana

Cofactor

Cofactor Comment Organism Structure
additional information FMN, FAD or 6,7-dimethyl-5,6,7,8-tetrahydropterine cannot replace NADPH Matthiola incana
NADH half as effective as NADPH Matthiola incana
NADPH
-
Matthiola incana