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Literature summary for 2.3.1.110 extracted from

  • Fleurence, J.; Negrel, J.
    Partial purification of tyramine feruloyl transferase from TMV inoculated tobacco leaves (1989), Phytochemistry, 28, 733-736.
No PubMed abstract available

General Stability

General Stability Organism
10% glycerol in liquid N2 stabilizes Nicotiana tabacum
freezing does not alter the properties of the enzyme Nicotiana tabacum

Inhibitors

Inhibitors Comment Organism Structure
N-ethylmaleimide at 1 mM, 92% inhibition Nicotiana tabacum
p-chloromercuribenzoate 1 mM, strong Nicotiana tabacum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0049
-
feruloyl-CoA + tyramine Nicotiana tabacum
0.025
-
tyramine + feruloyl-CoA, dopamine + feruloyl-CoA Nicotiana tabacum
0.045 0.07 tyramine + p-coumaroyl-CoA, depending on the enzyme fraction used Nicotiana tabacum
0.0588 0.071 tyramine + feruloyl-CoA, depending on the enzyme fraction used Nicotiana tabacum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
feruloyl-CoA + tyramine Nicotiana tabacum
-
CoA + feruloyltyramine
-
?

Organism

Organism UniProt Comment Textmining
Nicotiana tabacum
-
infected with tobacco mosaic virus
-

Oxidation Stability

Oxidation Stability Organism
O2-sensitive Nicotiana tabacum

Purification (Commentary)

Purification (Comment) Organism
46fold, separation of 3 fractions with different specificities Nicotiana tabacum

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Nicotiana tabacum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.0156
-
-
Nicotiana tabacum

Storage Stability

Storage Stability Organism
4°C, as ammonium sulfate paste, 10 mM mercaptoethanol, 24 h, 25% loss of activity Nicotiana tabacum
4°C, as ammonium sulfate paste, 5 mM DTT, 10% loss of activity within 24 h Nicotiana tabacum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-coumaroyl-CoA + tyramine
-
Nicotiana tabacum CoA + N-(4-coumaroyl)tyramine i.e. 4-hydroxycinnamoyltyramine ?
cinnamoyl-CoA + tyramine
-
Nicotiana tabacum CoA + cinnamoyltyramine
-
?
feruloyl-CoA + dopamine
-
Nicotiana tabacum CoA + feruloyldopamine
-
?
feruloyl-CoA + tyramine
-
Nicotiana tabacum CoA + feruloyltyramine
-
?
additional information enzyme has a wide specificity for phenylethylamines and cinnamoyl-CoA thioesters but differs in the affinity for the substrate, thus indicating different isoenzymes Nicotiana tabacum ?
-
?
sinapoyl-CoA + tyramine
-
Nicotiana tabacum CoA + sinapoyltyramine
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Nicotiana tabacum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.6 8 optimum varies slightly between different fractions Nicotiana tabacum