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Literature summary for 1.1.1.219 extracted from

  • Singh, K.; Kumar, S.; Yadav, S.; Ahuja, P.
    Characterization of dihydroflavonol 4-reductase cDNA in tea [Camellia sinensis (L.) O. Kuntze] (2009), Plant Biotechnol. Rep., 3, 95-101.
No PubMed abstract available

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Camellia sinensis
into expression vector pQE-30 UA, and transformed into Escherichia coli M15 pREP-4 competent cells Camellia sinensis

Inhibitors

Inhibitors Comment Organism Structure
abscisic acid decreases expression Camellia sinensis
additional information is unaffected by gibberellic acid treatment Camellia sinensis

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane
-
Camellia sinensis 16020
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
38670
-
sequence analysis Camellia sinensis
38670
-
x * 38670, calculated, x * 41000, SDS-PAGE of recombinant protein with fusion peptide Camellia sinensis
41000
-
x * 41000, SDS-PAGE Camellia sinensis
41000
-
x * 38670, calculated, x * 41000, SDS-PAGE of recombinant protein with fusion peptide Camellia sinensis

Organism

Organism UniProt Comment Textmining
Camellia sinensis Q6DT40
-
-
Camellia sinensis Q9S787
-
-
Camellia sinensis (L.) O. Kuntze Q6DT40
-
-

Purification (Commentary)

Purification (Comment) Organism
on Ni-NTA column Camellia sinensis

Source Tissue

Source Tissue Comment Organism Textmining
leaf expression is maximum in younger rather than older leaves Camellia sinensis
-
leaf expression is maximal in younger rather than older leaves Camellia sinensis
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
42.8
-
pH 7.0, 25°C Camellia sinensis
42850
-
recombinant protein Camellia sinensis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(+)-dihydroquercetin + NADPH + H+
-
Camellia sinensis cis-3,4-leucocyanidin + NADP+
-
?
(+)-dihydroquercetin + NADPH + H+
-
Camellia sinensis (L.) O. Kuntze cis-3,4-leucocyanidin + NADP+
-
?
dihydroquercetin + NADPH + H+
-
Camellia sinensis leucocyanidin + NADP+
-
?

Subunits

Subunits Comment Organism
? x * 41000, SDS-PAGE Camellia sinensis
? x * 38670, calculated, x * 41000, SDS-PAGE of recombinant protein with fusion peptide Camellia sinensis

Synonyms

Synonyms Comment Organism
DFR
-
Camellia sinensis
dihydroflavonol 4-reductase
-
Camellia sinensis

Cofactor

Cofactor Comment Organism Structure
NADPH
-
Camellia sinensis

pI Value

Organism Comment pI Value Maximum pI Value
Camellia sinensis calculated
-
6.2
Camellia sinensis sequence analysis
-
6.22

Expression

Organism Comment Expression
Camellia sinensis in response to drought stress down
Camellia sinensis expression is down-regulated in response to drought stress and abscisic acid, and unaffected by gibberellic acid treatment down
Camellia sinensis in response to wounding, with concomitant modulation of catechins content. Expression is maximum in younger rather than older leaves up
Camellia sinensis expression is up-regulated in response to wounding, with concomitant modulation of catechins content up