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Literature summary for 3.2.1.3 extracted from

  • Mohamed, S.A.; Fahmy, A.S.; Mohamed, T.M.
    Carbohydrases in camel (Camelus dromedarius) pancreas. Purification and characterization of glucoamylase (2005), Comp. Biochem. Physiol. B, 140, 73-80.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
4-chloromercuribenzoate complete inhibition at 10 mM, 72% inhibition at 1 mM Camelus dromedarius
Co2+ 26% inhibition at 1 mM Camelus dromedarius
Cu2+ 85% inhibition at 1 mM Camelus dromedarius
DTNB 42% inhibition at 10 mM, no inhibition at 1 mM Camelus dromedarius
Hg2+ 89% inhibition at 1 mM Camelus dromedarius
iodoacetamide 78% inhibition at 10 mM, 40% inhibition at 1 mM Camelus dromedarius
additional information no inhibition by PMSF Camelus dromedarius
Zn2+ 78% inhibition at 1 mM Camelus dromedarius

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
10
-
starch pH 5.5, 37°C Camelus dromedarius

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular the enzyme is secreted by the cells in pancreas to small intestine Camelus dromedarius
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Ba2+ 65% activation at 1 mM Camelus dromedarius
Ca2+ 74% activation at 1 mM Camelus dromedarius
Mn2+ 60% activation at 1 mM Camelus dromedarius
Ni2+ 11% activation at 1 mM Camelus dromedarius

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
58000
-
gel filtration Camelus dromedarius

Organism

Organism UniProt Comment Textmining
Camelus dromedarius
-
-
-

Purification (Commentary)

Purification (Comment) Organism
native enzyme 93fold from pancreas to homogeneity by glycogen precipitation, ion exchange chromatography, and gel filtration Camelus dromedarius

Source Tissue

Source Tissue Comment Organism Textmining
pancreas
-
Camelus dromedarius
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.02
-
pancreas Camelus dromedarius
16.25
-
purified enzyme Camelus dromedarius

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
alpha-cyclodextrin + H2O
-
Camelus dromedarius alpha-cyclodextrin + beta-D-glucose
-
?
amylopectin + H2O
-
Camelus dromedarius amylopectin + beta-D-glucose
-
?
dextrin + H2O
-
Camelus dromedarius dextrin + beta-D-glucose
-
?
glycogen + H2O
-
Camelus dromedarius glycogen + beta-D-glucose
-
?
additional information substrate specificity overview Camelus dromedarius ?
-
?
pectin + H2O
-
Camelus dromedarius pectin + beta-D-glucose
-
?
starch + H2O soluble potato starch Camelus dromedarius starch + beta-D-glucose
-
?
xylan + H2O
-
Camelus dromedarius xylan + beta-D-glucose
-
?

Subunits

Subunits Comment Organism
monomer 1 * 58000, SDS-PAGE Camelus dromedarius

Synonyms

Synonyms Comment Organism
glucoamylase
-
Camelus dromedarius

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
-
Camelus dromedarius

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
30
-
stable up to Camelus dromedarius
60
-
inactivation Camelus dromedarius

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.5
-
-
Camelus dromedarius