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Literature summary extracted from

  • Gross, G.G.
    Synthesis of mono-, di- and trigalloyl-beta-D-glucose by beta-glucogallin-dependent galloyltransferases from oak leaves (1983), Z. Naturforsch. C, 38, 519-523.
No PubMed abstract available

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.3.1.90 additional information
-
 additional information substrate saturation at 10 mM Quercus robur

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.3.1.90 1-O-galloyl-beta-D-glucose + 1-O-galloyl-beta-D-glucose Quercus robur
-
 1,6-di-O-galloyl-beta-D-glucose + D-glucose
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
2.3.1.90 Quercus robur
-
 oak
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.3.1.90 partial purification with ammonium sulfate precipitation, DEAE-cellulose chromatography and gel filtration Quercus robur

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.3.1.90 leaf 2-3 months old Quercus robur
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.3.1.90 1-O-galloyl-beta-D-glucose + 1,6-di-O-galloyl-beta-D-glucose
-
 Quercus robur 1,2,6-tri-O-galloyl-beta-D-glucose + D-glucose
-
 ?
2.3.1.90 1-O-galloyl-beta-D-glucose + 1-O-galloyl-beta-D-glucose no reaction with galloyl-CoA Quercus robur 1,6-di-O-galloyl-beta-D-glucose + D-glucose
-
 ?
2.3.1.90 1-O-galloyl-beta-D-glucose + 1-O-galloyl-beta-D-glucose
-
 Quercus robur 1,6-di-O-galloyl-beta-D-glucose + D-glucose
-
 ?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.3.1.90 6 6.5
-
 Quercus robur

pH Range

EC Number pH Minimum pH Maximum Comment Organism
2.3.1.90 4.2 8 no activity below pH 4.2 and above pH 8.0 Quercus robur
2.3.1.90 5 7.2 about half-maximal activity at pH 5.0 and pH 7.2 Quercus robur

Cofactor

EC Number Cofactor Comment Organism Structure
2.3.1.90 additional information no cofactor requirement Quercus robur