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Literature summary for 1.1.1.206 extracted from

  • Richter, U.; Rothe, G.; Fabian, A.K.; Rahfeld, B.; Drager, B.
    Overexpression of tropinone reductases alters alkaloid composition in Atropa belladonna root cultures (2005), J. Exp. Bot., 56, 645-652.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
gene TR1, expression in Atropa belladonna root cultures, derived from transfected leaves using the transformation system via Agrobacterium rhizogenes strain 15834 Datura stramonium
wild-type and recombinant enzymes from Atropa belladonna root cultures by ammonium sulfate fractionation Atropa belladonna

Protein Variants

Protein Variants Comment Organism
additional information overexpression of tropinone reductases TRI and TRII, EC 1.1.1.236, from Datura stramonium alters alkaloid composition in Atropa belladonna root cultures, overview Atropa belladonna
additional information overexpression of tropinone reductases TRI and TRII, EC 1.1.1.236, from Datura stramonium alters alkaloid composition in Atropa belladonna root cultures, overview Datura stramonium

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
tropinone + NADPH + H+ Atropa belladonna tropine is the precursor of the tropane alkaloids hyoscyamine and scopolamine tropine + NADP+
-
?
tropinone + NADPH + H+ Datura stramonium tropine is the precursor of the tropane alkaloids hyoscyamine and scopolamine tropine + NADP+
-
?

Organism

Organism UniProt Comment Textmining
Atropa belladonna
-
-
-
Datura stramonium P50162 TRI; gene TR1
-

Purification (Commentary)

Purification (Comment) Organism
wild-type and recombinant enzymes from Atropa belladonna root cultures by ammonium sulfate fractionation Datura stramonium

Source Tissue

Source Tissue Comment Organism Textmining
root tissue culture Atropa belladonna
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
alkaloid spectrum in wild-type and transformed root cultures, overview Atropa belladonna

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
tropinone + NADPH + H+
-
Atropa belladonna tropine + NADP+
-
?
tropinone + NADPH + H+
-
Datura stramonium tropine + NADP+
-
?
tropinone + NADPH + H+ tropine is the precursor of the tropane alkaloids hyoscyamine and scopolamine Atropa belladonna tropine + NADP+
-
?
tropinone + NADPH + H+ tropine is the precursor of the tropane alkaloids hyoscyamine and scopolamine Datura stramonium tropine + NADP+
-
?

Synonyms

Synonyms Comment Organism
TRI
-
Atropa belladonna
TRI
-
Datura stramonium
tropine-forming tropinone reductase
-
Atropa belladonna
tropine-forming tropinone reductase
-
Datura stramonium
tropinone reductase
-
Atropa belladonna
tropinone reductase
-
Datura stramonium

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Atropa belladonna
30
-
assay at Datura stramonium

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
assay at Atropa belladonna
7
-
assay at Datura stramonium

Cofactor

Cofactor Comment Organism Structure
NADPH
-
Atropa belladonna
NADPH
-
Datura stramonium