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Literature summary for 2.4.1.114 extracted from

  • Kleinhofs, A.; Haskins, F.A.; Gorz, H.J.
    trans-o-Hydroxycinnamic acid glucosylation in cell-free extracts of Meliotus alba (1967), Phytochemistry, 6, 1313-1318.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
2-mercaptoethanol stimulation Melilotus albus
cysteine stimulation Melilotus albus

General Stability

General Stability Organism
dialysis overnight inactivates Melilotus albus
freezing results in a complete loss of activity Melilotus albus

Inhibitors

Inhibitors Comment Organism Structure
Cu2+ 1 mM, 63% inhibition Melilotus albus
additional information not inhibitory: 4 mM EDTA or 0.8 mM 2-coumaric acid glucoside Melilotus albus
Sodium citrate 4 mM, 37% inhibition Melilotus albus
Zn2+ 1 mM, 77% inhibition Melilotus albus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
UDP-glucose + 2-hydroxycinnamate Melilotus albus involved in the biosynthesis of coumarin UDP + (2E)-3-[2-(beta-D-glucopyranosyloxy)phenyl]prop-2-enoic acid
-
?

Organism

Organism UniProt Comment Textmining
Melilotus albus
-
cucubb genotype
-

Purification (Commentary)

Purification (Comment) Organism
partial Melilotus albus

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Melilotus albus
-

Storage Stability

Storage Stability Organism
4°C, complete loss of activity within 1-2 days Melilotus albus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
UDP-glucose + 2-hydroxycinnamate
-
Melilotus albus UDP + (2E)-3-[2-(beta-D-glucopyranosyloxy)phenyl]prop-2-enoic acid
-
?
UDP-glucose + 2-hydroxycinnamate involved in the biosynthesis of coumarin Melilotus albus UDP + (2E)-3-[2-(beta-D-glucopyranosyloxy)phenyl]prop-2-enoic acid
-
?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
4
-
1-2 d, complete loss of activity Melilotus albus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.6 8.3
-
Melilotus albus

pH Range

pH Minimum pH Maximum Comment Organism
6.5 8.8 25% of maximal activity at pH 6, 10% of maximal activity at pH 9 Melilotus albus