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Literature summary extracted from

  • Quezada-Calvillo, R.; Robayo-Torres, C.C.; Opekun, A.R.; Sen, P.; Ao, Z.; Hamaker, B.R.; Quaroni, A.; Brayer, G.D.; Wattler, S.; Nehls, M.C.; Sterchi, E.E.; Nichols, B.L.
    Contribution of mucosal maltase-glucoamylase activities to mouse small intestinal starch alpha-glucogenesis (2007), J. Nutr., 137, 1725-1733.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.2.1.20 genotyping of wild-type and mutant enzymes, cDNA sequencing of the Mgam null mice Mus musculus

Protein Variants

EC Number Protein Variants Comment Organism
3.2.1.20 additional information ablation of maltase-glucoamylase gene expression by homologous recombination in Sv/129 mice, genotyping and phenotyping, overview Mus musculus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.2.1.20 additional information
-
 additional information kinetics of wild-type, mutant and null mutant mice Mus musculus

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.2.1.20 membrane bound Mus musculus 16020
-
3.2.1.20 soluble
-
 Mus musculus
-
-

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.2.1.20 1,4-alpha-D-glucooligosaccharide + H2O Mus musculus the four isozymes digest all linear starch oligosaccharides to glucose alpha-D-glucose
-
 ?
3.2.1.20 maltose + H2O Mus musculus
-
 alpha-D-glucose + D-glucose
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.20 Mus musculus Q6XK23 fragment
-
3.2.1.20 Mus musculus Q6XK24 fragment
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.20 enterocyte 4 isozymes bound to the luminal surface of enterocytes, 2 isozymes are associated with sucrase-isomaltase activities Mus musculus
-
3.2.1.20 jejunum mucosa Mus musculus
-
3.2.1.20 mucosa
-
 Mus musculus
-
3.2.1.20 small intestine mucosa Mus musculus
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.20 1,4-alpha-D-glucooligosaccharide + H2O the four isozymes digest all linear starch oligosaccharides to glucose Mus musculus alpha-D-glucose
-
 ?
3.2.1.20 maltose + H2O
-
 Mus musculus alpha-D-glucose + D-glucose
-
 ?

Synonyms

EC Number Synonyms Comment Organism
3.2.1.20 maltase
-
 Mus musculus
3.2.1.20 maltase-glucoamylase
-
 Mus musculus
3.2.1.20 MGAM
-
 Mus musculus

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.20 37
-
 assay at Mus musculus

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.20 6.8
-
 assay at Mus musculus