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Literature summary for 1.14.14.82 extracted from

  • Seitz, C.; Ameres, S.; Forkmann, G.
    Identification of the molecular basis for the functional difference between flavonoid 3'-hydroxylase and flavonoid 3',5'-hydroxylase (2007), FEBS Lett., 581, 3429-3434.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression of wild-type enzyme and chimeric mutants in yeast strain INVSc 1 microsomes Gerbera hybrid cultivar

Protein Variants

Protein Variants Comment Organism
additional information generation of chimeric constructs consisting of cDNA fragments of Gerbera hybrida F3'H and Osteospermum hybrida F3'5'H, EC 1.14.13.88, overview Gerbera hybrid cultivar
T484F site-directed mutagenesis, altered substrate specificity compared to the wild-type enzyme Gerbera hybrid cultivar
T487A site-directed mutagenesis, altered substrate specificity compared to the wild-type enzyme Gerbera hybrid cultivar
T487S site-directed mutagenesis, a conservative Thr to Ser exchange at position 487 conferred additional 5'-hydroxylation activity to recombinant Gerbera hybrida F3'H Gerbera hybrid cultivar
Y484F/T487S site-directed mutagenesis, altered substrate specificity compared to the wild-type enzyme Gerbera hybrid cultivar

Metals/Ions

Metals/Ions Comment Organism Structure
Fe2+ a cytochrome P450 enzyme Gerbera hybrid cultivar

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
dihydrokaempferol + [reduced NADPH-hemoprotein reductase] + O2 Gerbera hybrid cultivar
-
dihydroquercetin + [oxidized NADPH-hemoprotein reductase] + H2O
-
?
additional information Gerbera hybrid cultivar substrate specificity of F3'H and the F3'5'H, flavonoid 3',5'-hydroxylase, EC 1.14.13.88, evolutionary derived from F3'H, is determined near the N-terminal end and the functional difference between these two enzymes near the C-terminal end, relatively few amino acids exchanges are required for the evolutionary extension of 3'- to 3',5'-hydroxylation activity, overview ?
-
?
naringenin + [reduced NADPH-hemoprotein reductase] + O2 Gerbera hybrid cultivar
-
eriodyctiol + [oxidized NADPH-hemoprotein reductase] + H2O
-
?

Organism

Organism UniProt Comment Textmining
Gerbera hybrid cultivar Q38L00
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
activities of recombinant chimeric mutant enzymes, overview Gerbera hybrid cultivar
0.000003
-
recombinant wild-type F3'H Gerbera hybrid cultivar

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
dihydrokaempferol + [reduced NADPH-hemoprotein reductase] + O2
-
Gerbera hybrid cultivar dihydroquercetin + [oxidized NADPH-hemoprotein reductase] + H2O
-
?
additional information substrate specificity of F3'H and the F3'5'H, flavonoid 3',5'-hydroxylase, EC 1.14.13.88, evolutionary derived from F3'H, is determined near the N-terminal end and the functional difference between these two enzymes near the C-terminal end, relatively few amino acids exchanges are required for the evolutionary extension of 3'- to 3',5'-hydroxylation activity, overview Gerbera hybrid cultivar ?
-
?
naringenin + [reduced NADPH-hemoprotein reductase] + O2
-
Gerbera hybrid cultivar eriodyctiol + [oxidized NADPH-hemoprotein reductase] + H2O
-
?
naringenin + [reduced NADPH-hemoprotein reductase] + O2 preferred substrate of the wild-type enzyme Gerbera hybrid cultivar eriodyctiol + [oxidized NADPH-hemoprotein reductase] + H2O
-
?

Synonyms

Synonyms Comment Organism
F3'H
-
Gerbera hybrid cultivar
flavonoid 3'-hydroxylase
-
Gerbera hybrid cultivar
More the enzyme belongs to the subfamilies CYP75B of the superfamily of cytochrome P450-dependent monooxygenases Gerbera hybrid cultivar

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Gerbera hybrid cultivar

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
assay at Gerbera hybrid cultivar

Cofactor

Cofactor Comment Organism Structure
cytochrome a cytochrome P450 enzyme Gerbera hybrid cultivar