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Literature summary for 2.4.1.99 extracted from

  • Shiomi, N.; Kido, H.; Kiriyama, S.
    Purification and properties of sucrose:sucrose 1F-beta-D-fructosyltransferase in onion seeds (1985), Phytochemistry, 24, 695-698.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Ag+ 0.25 mM AgNO3, 32.2% inhibition Allium cepa
Ca2+ 0.25 mM CaCl2, 10.6% inhibition Allium cepa
Co2+ 0.25 mM CoCl2, 12.7% inhibition Allium cepa
Cu2+ 0.25 mM CuSO4, 11.1% inhibition Allium cepa
Hg2+ 0.025 mM HgCl2, 53.8% inhibition Allium cepa
Mn2+ 0.25 mM MnSO4, 45.7% inhibition Allium cepa
PCMB 0.03 mM, 63% inhibition Allium cepa

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.083
-
sucrose
-
Allium cepa

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
68000
-
gel filtration Allium cepa

Organism

Organism UniProt Comment Textmining
Allium cepa
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Allium cepa

Source Tissue

Source Tissue Comment Organism Textmining
seed
-
Allium cepa
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
sucrose + sucrose
-
Allium cepa D-glucose + 1F-beta-D-fructosylsucrose
-
?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
20 37 10 min, stable Allium cepa
45
-
10 min, residual activity is 52% at pH 4.6 and at pH 5.4, 37% at pH 4.0, 35% at pH 6.0 and 5% at pH 7.0 Allium cepa
50 60 10 min, inactivation Allium cepa

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.4
-
-
Allium cepa