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Literature summary for 2.4.1.19 extracted from

  • Arya, S.K.; Srivastava, S.K.
    Kinetics of immobilized cyclodextrin gluconotransferase produced by Bacillus macerans ATCC 8244 (2006), Enzyme Microb. Technol., 39, 507-510.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
Ca2+ 4 mM, 22% activation Paenibacillus macerans

General Stability

General Stability Organism
enzyme immobilized on alginate shows a high operational stability by retaining almost 75% of the initial activity after seventh use Paenibacillus macerans

Inhibitors

Inhibitors Comment Organism Structure
starch substrate inhibition at 0.01 and 0.0055 mg starch/ml for free and immobilized enzyme Paenibacillus macerans

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information Km-value for starch: 0.0025 mg/ml (soluble enzyme), 0.0045 mg/ml (enzyme immobilized on alginate) Paenibacillus macerans

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular
-
Paenibacillus macerans
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Co2+ 10 mM, 28% inhibition Paenibacillus macerans
Cu2+ 10 mM, 20% inhibition Paenibacillus macerans
Fe2+ 10 mM, 58% inhibition Paenibacillus macerans
Hg2+ 10 mM, complete inhibition Paenibacillus macerans
Mg2+ 10 mM, 75% inhibition Paenibacillus macerans
Zn2+ 10 mM, 65% inhibition Paenibacillus macerans

Organism

Organism UniProt Comment Textmining
Paenibacillus macerans
-
ATCC 8244
-

Purification (Commentary)

Purification (Comment) Organism
-
Paenibacillus macerans

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
enzyme immobilized on alginate beads and soluble enzyme Paenibacillus macerans

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
40 80 40°C: immobilized enzyme shows about 55% of maximal activity, soluble enzyme about 65% of maximal activity, 80°C: immobilized enzyme shows about 50% loss of maximal activity, soluble enzyme shows about 70% of maximal activity Paenibacillus macerans

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
-
Paenibacillus macerans

pH Range

pH Minimum pH Maximum Comment Organism
5 8 pH 5: soluble enzyme shows about 50% of maximal activity, soluble enzyme shows about 60% of maximal activity, pH 8: soluble enzyme shows 40% of maximal activity, immobilized enzyme shows about 50% of maximal activity Paenibacillus macerans

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
additional information
-
additional information Ki-value for starch: 0.01 mg/ml (soluble enzyme), 0.0055 mg/ml (enzyme immobilized on alginate) Paenibacillus macerans