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Literature summary for 4.2.2.18 extracted from

  • Kang, S.I.; Kim, W.P.; Chang, Y.J.; Kim, S.I.
    Purification and properties of inulin fructotransferase (DFA III-producing) from Bacillus sp. snu-7 (1998), Biosci. Biotechnol. Biochem., 62, 628-631.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
Ba2+ slight inhibition Bacillus sp. (in: Bacteria)
Cu2+ strong inhibition at 1 mM Bacillus sp. (in: Bacteria)
Fe2+ strong inhibition at 1 mM Bacillus sp. (in: Bacteria)
Hg2+ complete inhibition at 1 mM Bacillus sp. (in: Bacteria)
additional information no effect of EDTA and cysteine Bacillus sp. (in: Bacteria)
Ni2+ slight inhibition Bacillus sp. (in: Bacteria)

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
5.4
-
inulin with MW of inulin taken as 5000 Da Bacillus sp. (in: Bacteria)

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular
-
Bacillus sp. (in: Bacteria)
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
additional information no effect of Mg2+ and Co2+ Bacillus sp. (in: Bacteria)

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
additional information
-
amino acid composition Bacillus sp. (in: Bacteria)
additional information
-
N-terminal amino acid sequence Bacillus sp. (in: Bacteria)
62000
-
x * 62000, SDS-PAGE Bacillus sp. (in: Bacteria)

Organism

Organism UniProt Comment Textmining
Bacillus sp. (in: Bacteria)
-
-
-
Bacillus sp. (in: Bacteria) snu-7
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Bacillus sp. (in: Bacteria)

Source Tissue

Source Tissue Comment Organism Textmining
culture medium
-
Bacillus sp. (in: Bacteria)
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
45.8
-
purified enzyme Bacillus sp. (in: Bacteria)

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
inulin
-
Bacillus sp. (in: Bacteria) 3 di-D-fructofuranose 1,2':2,3' dianhydride + ? i.e. DFA III ?
inulin
-
Bacillus sp. (in: Bacteria) 3 di-D-fructofuranose 1,2':2,3' dianhydride + ? other products through exhaustive enzymic digestion of inulin: 1-kestose, 1-nystose, and 1-F-fructofuranosyl-nystose ?
inulin
-
Bacillus sp. (in: Bacteria) snu-7 3 di-D-fructofuranose 1,2':2,3' dianhydride + ? i.e. DFA III ?
inulin
-
Bacillus sp. (in: Bacteria) snu-7 3 di-D-fructofuranose 1,2':2,3' dianhydride + ? other products through exhaustive enzymic digestion of inulin: 1-kestose, 1-nystose, and 1-F-fructofuranosyl-nystose ?

Subunits

Subunits Comment Organism
? x * 62000, SDS-PAGE Bacillus sp. (in: Bacteria)

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
40
-
-
Bacillus sp. (in: Bacteria)

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
30
-
80% of maximal activity at 30°C and 60°C Bacillus sp. (in: Bacteria)

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
60
-
stable up to Bacillus sp. (in: Bacteria)

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
-
Bacillus sp. (in: Bacteria)

pH Range

pH Minimum pH Maximum Comment Organism
4 9
-
Bacillus sp. (in: Bacteria)

pH Stability

pH Stability pH Stability Maximum Comment Organism
4
-
80% of maximal activity at pH 4.0 and pH 7.0 Bacillus sp. (in: Bacteria)