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Literature summary for 2.4.1.192 extracted from

  • Kalinowska, M.; Wojciechowski, Z.A.
    Subcellular localization of UDPG:nuatigenin glucosyltransferase in oat leaves (1987), Phytochemistry, 26, 353-357.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Hg2+
-
Avena sativa
Triton X-100
-
Avena sativa
Zn2+
-
Avena sativa

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol 70% of the activity Avena sativa 5829
-

Metals/Ions

Metals/Ions Comment Organism Structure
additional information no stimulation by divalent cations: Ca2+, Mn2+ or Mg2+ Avena sativa

Organism

Organism UniProt Comment Textmining
Avena sativa
-
oat
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Avena sativa
-

Storage Stability

Storage Stability Organism
-20°C, cytosolic fraction stable for several months Avena sativa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(25R)-spirost-5-en-3beta-ol + UDP-glucose
-
Avena sativa UDP + (25R)-spirost-5-en-3beta-ol 3-O-beta-D-glucoside
-
?
20S,22S,25S-spirost-5-ene-3beta,25-diol + UDP-glucose
-
Avena sativa UDP + 20S,22S,25S-spirost-5-ene-3beta,25-diol 3-O-beta-D-glucoside
-
?
UDP-glucose + (20S,22S,25S)-22,25-epoxyfurost-5-ene-3beta,26-diol
-
Avena sativa UDP + (20S,22S,25S)-22,25-epoxyfurost-5-ene-3beta,26-diol 3-O-beta-D-glucoside i.e. nuatigenin 3beta-D-monoglucoside ?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
-
Avena sativa

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
30 39 at 30°C activity maximum, at 39°C activity is 7times lower than at 30°C Avena sativa

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5 8.5
-
Avena sativa

pH Range

pH Minimum pH Maximum Comment Organism
5.8 8.5 at pH 5.8 about 50% of activity maximum, at pH 6.5-8.5 activity maximum Avena sativa