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Literature summary for 3.2.1.20 extracted from

  • Pereira, B.; Sivakami, S.
    Neutral maltase/glucoamylase from rabbit renal cortex (1989), Biochem. J., 261, 43-47.
    View publication on PubMedView publication on EuropePMC

Inhibitors

Inhibitors Comment Organism Structure
Cl-
-
Oryctolagus cuniculus
NEM
-
Oryctolagus cuniculus
PCMB
-
Oryctolagus cuniculus
starch non-competitively inhibits hydrolysis of maltose Oryctolagus cuniculus
sucrose inhibits glucoamylase activity, no inhibition of maltase activity Oryctolagus cuniculus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.22
-
maltopentaose
-
Oryctolagus cuniculus
0.29
-
maltotetraose
-
Oryctolagus cuniculus
0.3
-
maltotriose
-
Oryctolagus cuniculus
0.67
-
maltose
-
Oryctolagus cuniculus
3.7
-
starch
-
Oryctolagus cuniculus

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane brush-border membrane Oryctolagus cuniculus 16020
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
79000
-
8 * 79000, SDS-PAGE Oryctolagus cuniculus
590000
-
gel filtration Oryctolagus cuniculus

Organism

Organism UniProt Comment Textmining
Oryctolagus cuniculus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Oryctolagus cuniculus

Source Tissue

Source Tissue Comment Organism Textmining
kidney renal cortex Oryctolagus cuniculus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
maltopentaose + H2O
-
Oryctolagus cuniculus alpha-D-glucose + ?
-
?
maltose + H2O
-
Oryctolagus cuniculus alpha-D-glucose + D-glucose
-
?
maltotetraose + H2O
-
Oryctolagus cuniculus alpha-D-glucose
-
?
maltotriose + H2O
-
Oryctolagus cuniculus maltose + D-glucose
-
?
starch + H2O
-
Oryctolagus cuniculus alpha-D-glucose
-
?

Subunits

Subunits Comment Organism
octamer 8 * 79000, SDS-PAGE Oryctolagus cuniculus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6 7 maltase activity Oryctolagus cuniculus
6 8 glucoamylase activity Oryctolagus cuniculus