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Literature summary extracted from

  • Rueffer, M.; Zumstein, G.; Zenk, M.H.
    Partial purification and properties of S-adenosyl-L-methionine:(S)-tetrahydroprotoberberine-cis-N-methyltransferase from suspension-cultured cells of Eschscholtzia and Corydalis (1990), Phytochemistry, 29, 3727-3733.
No PubMed abstract available

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.1.1.122 S-adenosyl-L-homocysteine
-
Eschscholzia californica

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.1.1.122 0.0017
-
S-adenosyl-L-methionine
-
Corydalis vaginans
2.1.1.122 0.0031
-
(S)-Stylopine
-
Corydalis vaginans
2.1.1.122 0.004
-
(S)-Stylopine
-
Eschscholzia californica
2.1.1.122 0.0064
-
(S)-canadine
-
Eschscholzia californica
2.1.1.122 0.007
-
(S)-canadine
-
Corydalis vaginans
2.1.1.122 0.012
-
S-adenosyl-L-methionine
-
Eschscholzia californica

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
2.1.1.122 additional information the enzyme is not compartmentalized Eschscholzia californica
-
-

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
2.1.1.122 72000
-
gel filtration Corydalis vaginans
2.1.1.122 78000
-
gel filtration Eschscholzia californica

Organism

EC Number Organism UniProt Comment Textmining
2.1.1.122 Corydalis vaginans
-
-
-
2.1.1.122 Eschscholzia californica
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.1.1.122 partial Eschscholzia californica

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.1.1.122 cell suspension culture
-
Eschscholzia californica
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.1.1.122 additional information
-
-
Eschscholzia californica

Storage Stability

EC Number Storage Stability Organism
2.1.1.122 -20°C, 20% glycerol, half-life: 5 days Eschscholzia californica
2.1.1.122 4°C, 20% glycerol, half-life: 10 days Eschscholzia californica

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.1.1.122 S-Adenosyl-L-methionine + (S)-7,8,13,14-tetrahydroprotoberberine
-
Eschscholzia californica S-Adenosyl-L-homocysteine + cis-N-methyl-(S)-7,8,13,14-tetrahydroprotoberberine
-
?
2.1.1.122 S-Adenosyl-L-methionine + (S)-7,8,13,14-tetrahydroprotoberberine
-
Corydalis vaginans S-Adenosyl-L-homocysteine + cis-N-methyl-(S)-7,8,13,14-tetrahydroprotoberberine
-
?
2.1.1.122 S-adenosyl-L-methionine + (S)-canadine
-
Eschscholzia californica ?
-
?
2.1.1.122 S-adenosyl-L-methionine + (S)-canadine
-
Corydalis vaginans ?
-
?
2.1.1.122 S-Adenosyl-L-methionine + (S)-stylopine
-
Eschscholzia californica ?
-
?
2.1.1.122 S-Adenosyl-L-methionine + (S)-stylopine
-
Corydalis vaginans ?
-
?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
2.1.1.122 37 40
-
Eschscholzia californica

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
2.1.1.122 20
-
half-life: 5 days Eschscholzia californica

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.1.1.122 8.9
-
-
Eschscholzia californica

pH Range

EC Number pH Minimum pH Maximum Comment Organism
2.1.1.122 6.6 9.1 about 50% of maximal activity at pH 6.6 and 9.1 Eschscholzia californica