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Literature summary extracted from

  • McIntosh, C.A.; Mansell R.L.
    Biosynthesis of naringin in Citrus paradisi: UDP-glucosyl-transferase activity in grapefruit seedlings (1990), Phytochemistry, 29, 1533-1538.
No PubMed abstract available

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.4.1.185 ADP 10 mM, strong Citrus x paradisi
2.4.1.185 ATP 10 mM, strong Citrus x paradisi
2.4.1.185 NADPH 10 mM, weak Citrus x paradisi
2.4.1.185 TTP 10 mM, strong Citrus x paradisi
2.4.1.185 UDP 10 mM, weak Citrus x paradisi
2.4.1.185 UTP 10 mM, strong Citrus x paradisi

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.4.1.185 0.08
-
naringenin
-
Citrus x paradisi
2.4.1.185 0.11
-
hesperetin
-
Citrus x paradisi
2.4.1.185 0.13
-
2',4',6',4-tetrahydroxy chalcone
-
Citrus x paradisi
2.4.1.185 0.37
-
UDPglucose
-
Citrus x paradisi

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
2.4.1.185 additional information CaCl2, MnCl2, NaCl, MgCl2 at 0.1 mM, 1.0 mM and 10 mM have no effect Citrus x paradisi

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.4.1.185 UDP-alpha-D-glucose + 4',5',7-trihydroxyflavanone Citrus x paradisi trivial name naringenin UDP + 4',5',7-trihydroxyflavanone 7-O-beta-D-glucoside
-
?

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.185 Citrus x paradisi
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.4.1.185
-
Citrus x paradisi

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.4.1.185 seedling highest activity in leaves, more than in stem and roots Citrus x paradisi
-

Storage Stability

EC Number Storage Stability Organism
2.4.1.185 4°C, 1% bovine serum albumin, 2-3 days, no loss of activity Citrus x paradisi

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.185 UDP-alpha-D-glucose + 4',5',7-trihydroxyflavanone trivial name naringenin Citrus x paradisi UDP + 4',5',7-trihydroxyflavanone 7-O-beta-D-glucoside
-
?
2.4.1.185 UDP-alpha-D-glucose + kaempferol 90% of activity with naringenin Citrus x paradisi UDP + kaempferol 7-O-beta-D-glucoside
-
?
2.4.1.185 UDP-alpha-D-glucose + quercetin 164% of activity with naringenin Citrus x paradisi UDP + quercetin 7-O-beta-D-glucoside
-
?
2.4.1.185 UDP-glucose + hesperetin
-
Citrus x paradisi UDP + hesperetin 7-O-glucoside
-
?
2.4.1.185 UDP-glucose + naringenin
-
Citrus x paradisi UDP + naringenin 7-O-glucoside
-
?
2.4.1.185 UDPglucose + 2',4',6',4-tetrahydroxychalcone 64% of activity with naringenin Citrus x paradisi UDP + 2',4',6',4-tetrahydroxychalcone 4'-O-glucoside
-
?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
2.4.1.185 37
-
-
Citrus x paradisi

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.4.1.185 6.5 7.5
-
Citrus x paradisi