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Literature summary for 2.4.1.19 extracted from

  • Rahman, K.; Illias, R.M.; Hassan, O.; Mahmood, N.A.; Rashid, N.A.
    Molecular cloning of a cyclodextrin glucanotransferase gene from alkalophilic Bacillus sp. TS1-1 and characterization of the recombinant enzyme (2006), Enzyme Microb. Technol., 39, 74-84.
No PubMed abstract available

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Bacillus sp. (in: Bacteria)

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information
-
Bacillus sp. (in: Bacteria)

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
75000
-
x * 75000, SDS-PAGE Bacillus sp. (in: Bacteria)
75140
-
x * 75140, calculated from sequence Bacillus sp. (in: Bacteria)

Organism

Organism UniProt Comment Textmining
Bacillus sp. (in: Bacteria) Q5U9W0 TS1-1
-
Bacillus sp. (in: Bacteria) TS1-1 Q5U9W0 TS1-1
-

Purification (Commentary)

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

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
starch 86% beta-cyclodextrin and 14% of gamma-cyclodextrin are produced after 24 h incubation at 60°C, without adding any selective agent, in 0.1 M phosphate buffer Bacillus sp. (in: Bacteria) beta-cyclodextrin + gamma-cyclodextrin
-
?
starch 86% beta-cyclodextrin and 14% of gamma-cyclodextrin are produced after 24 h incubation at 60°C, without adding any selective agent, in 0.1 M phosphate buffer Bacillus sp. (in: Bacteria) TS1-1 beta-cyclodextrin + gamma-cyclodextrin
-
?

Subunits

Subunits Comment Organism
? x * 75000, SDS-PAGE Bacillus sp. (in: Bacteria)
? x * 75140, calculated from sequence Bacillus sp. (in: Bacteria)

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
and a second lower optimum at 80°C Bacillus sp. (in: Bacteria)

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
50 90 50°C: about 45% of maximal activity, 90°C: about 35% of maximal activity Bacillus sp. (in: Bacteria)

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
60
-
pH 6.0, 30 min, 5% loss of activity Bacillus sp. (in: Bacteria)
70
-
pH 6.0, 30°C, 10% loss of activity 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
5 8 pH 5.0: about 40% of maximal activity, pH 8.0: about 50% of maximal activity Bacillus sp. (in: Bacteria)

pH Stability

pH Stability pH Stability Maximum Comment Organism
7 9 60°C, 30 min, stable Bacillus sp. (in: Bacteria)