Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 1.3.1.77 extracted from

  • Pang, Y.; Abeysinghe, I.S.; He, J.; He, X.; Huhman, D.; Mewan, K.M.; Sumner, L.W.; Yun, J.; Dixon, R.A.
    Functional characterization of proanthocyanidin pathway enzymes from tea and their application for metabolic engineering (2013), Plant Physiol., 161, 1103-1116.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli Camellia sinensis
expressed in Escherichia coli. Overexpressed in Nicotiana tabacum and Medicago truncatula for functional analysis Camellia sinensis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.013
-
pelargonidin pH 6.5, temperature not specified in the publication Camellia sinensis
0.0131
-
cyanidin pH 6.5, temperature not specified in the publication Camellia sinensis
0.0142
-
delphinidin pH 6.5, temperature not specified in the publication Camellia sinensis
0.0201
-
pelargonidin pH 6.5, temperature not specified in the publication Camellia sinensis
0.0244
-
delphinidin pH 6.5, temperature not specified in the publication Camellia sinensis
0.0267
-
cyanidin pH 6.5, temperature not specified in the publication Camellia sinensis
0.097
-
NADPH co-substrate: cyanidin, pH 6.5, temperature not specified in the publication Camellia sinensis
0.219
-
NADPH co-substrate: cyanidin, pH 6.5, temperature not specified in the publication Camellia sinensis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
37000
-
calculated from cDNA Camellia sinensis

Organism

Organism UniProt Comment Textmining
Camellia sinensis
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Camellia sinensis
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
cyanidin + NADPH + H+ ANR1 or ANR2 converts cyanidin to a mixture of (+)-epicatechin and (-)-catechin, although in different proportions, indicating that both enzymes possess epimerase activity Camellia sinensis (-)-epicatechin + NADP+
-
?
delphinidin + NADPH
-
Camellia sinensis (-)-epigallocatechin + NADP+
-
?
pelargonidin + NADPH + H+
-
Camellia sinensis epiafzelechin + NADP+
-
?

Synonyms

Synonyms Comment Organism
CsANR1 enzymes possess epimerase activity Camellia sinensis
CsANR2 enzymes possess epimerase activity Camellia sinensis

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
0.0012
-
cyanidin pH 6.5, temperature not specified in the publication Camellia sinensis
0.0012
-
delphinidin pH 6.5, temperature not specified in the publication Camellia sinensis
0.0026
-
delphinidin pH 6.5, temperature not specified in the publication Camellia sinensis
0.0028
-
cyanidin pH 6.5, temperature not specified in the publication Camellia sinensis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
assay at Camellia sinensis

Cofactor

Cofactor Comment Organism Structure
NADPH
-
Camellia sinensis

General Information

General Information Comment Organism
malfunction ectopic expression of CsANR2 leads to the accumulation of low levels of proanthocyanidin precursors and their conjugates in Medicago truncatula hairy roots and anthocyanin-overproducing tobacco (Nicotiana tabacum), but levels of oligomeric proanthocyanidins are low Camellia sinensis