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Literature summary for 2.4.2.35 extracted from

  • Kleinehollenhorst, G.; Behrens, H.; Pegels, G.; Strunk, N.; Wiermann, R.
    Formation of flavonol 3-O-diglycosides and flavonol 3-O-triglycosides by enzyme extracts from anthers of Tulipa cv apeldoorn - characterization and activity of 3 different O-glycosyltransferases during anther development (1982), Z. Naturforsch. C, 37c, 587-599.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
2-mercaptoethanol slight stimulation Tulipa hybrid cultivar
dithioerythritol slight stimulation Tulipa hybrid cultivar
glutathione slight stimulation Tulipa hybrid cultivar
additional information no stimulation by bovine serum albumin, not affected by anions like chloride and sulfate Tulipa hybrid cultivar
NH4+ high activation Tulipa hybrid cultivar
sucrose slight stimulation Tulipa hybrid cultivar

Inhibitors

Inhibitors Comment Organism Structure
Cu2+ high inhibition when applied in high concentrations Tulipa hybrid cultivar
Mn2+
-
Tulipa hybrid cultivar
p-chloromercuribenzoate
-
Tulipa hybrid cultivar
Zn2+ high inhibition when applied in high concentrations Tulipa hybrid cultivar

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ high activation Tulipa hybrid cultivar
additional information no effect by Mg2+ Tulipa hybrid cultivar

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
30000
-
gel filtration Tulipa hybrid cultivar

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
UDP-D-xylose + flavonol 3-O-glycoside Tulipa hybrid cultivar involved in flavonoid metabolism, pathway of flavonol 3-O-triglycoside biosynthesis UDP + flavonol 3-O-D-xylosylglycoside
-
?

Organism

Organism UniProt Comment Textmining
Tulipa hybrid cultivar
-
tulip, cv. Apeldoorn
-

Purification (Commentary)

Purification (Comment) Organism
partial by a method that includes Sephadex G-200 chromatography, Sephadex G-15 chromatography, isoelectric focusing and DEAE-Sephadex chromatography Tulipa hybrid cultivar

Source Tissue

Source Tissue Comment Organism Textmining
anther
-
Tulipa hybrid cultivar
-
pollen at the stage of middle postmeiotic pollen ripening Tulipa hybrid cultivar
-
tapetum
-
Tulipa hybrid cultivar
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information aglycones are no substrates Tulipa hybrid cultivar ?
-
?
UDP-D-xylose + flavonol 3-O-diglycoside
-
Tulipa hybrid cultivar UDP + flavonol 3-O-triglycoside
-
?
UDP-D-xylose + flavonol 3-O-glycoside
-
Tulipa hybrid cultivar UDP + flavonol 3-O-D-xylosylglycoside
-
?
UDP-D-xylose + flavonol 3-O-glycoside involved in flavonoid metabolism, pathway of flavonol 3-O-triglycoside biosynthesis Tulipa hybrid cultivar UDP + flavonol 3-O-D-xylosylglycoside
-
?
UDP-D-xylose + isorhamnetin 3,7-O-diglucoside poor substrate Tulipa hybrid cultivar ?
-
?
UDP-D-xylose + isorhamnetin 3-O-glucoside
-
Tulipa hybrid cultivar UDP + isorhamnetin 3-O-xylosylglucoside
-
?
UDP-D-xylose + kaempferol 3-O-glucoside
-
Tulipa hybrid cultivar UDP + kaempferol 3-O-xylosylglucoside
-
?
UDP-D-xylose + kaempferol 3-O-rhamnoside poor substrate Tulipa hybrid cultivar UDP + kaempferol 3-O-xylosylrhamnoside
-
?
UDP-D-xylose + myricetin 3-O-rhamnoside poor substrate Tulipa hybrid cultivar UDP + myricetin 3-O-xylosylrhamnoside
-
?
UDP-D-xylose + quercetin 3-O-arabinoglucoside poor substrate Tulipa hybrid cultivar UDP + quercetin 3-O-xylosylarabinoglucoside
-
?
UDP-D-xylose + quercetin 3-O-galactoside best substrate tested Tulipa hybrid cultivar UDP + quercetin 3-O-xylosylgalactoside
-
?
UDP-D-xylose + quercetin 3-O-glucoside
-
Tulipa hybrid cultivar UDP + quercetin 3-O-xylosylglucoside
-
?
UDP-D-xylose + quercetin 3-O-glucoside poor substrate Tulipa hybrid cultivar UDP + quercetin 3-O-D-xylosylglucoside
-
?
UDP-D-xylose + quercetin 3-O-rhamnoside poor substrate Tulipa hybrid cultivar UDP + quercetin 3-O-xylosylrhamnoside
-
?
UDP-D-xylose + quercetin 3-O-rhamnosylglucoside i.e. rutin, poor substrate Tulipa hybrid cultivar UDP + quercetin 3-O-D-xylosylrhamnosylglucoside
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5 9
-
Tulipa hybrid cultivar