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Literature summary for 3.2.1.98 extracted from

  • Monma, M.; Nakakuki, T.; Kainuma, K.
    Formation and hydrolysis of maltohexaose by an extracellular exo-maltohexaohydrolase (1983), Agric. Biol. Chem., 47, 1769-1774.
No PubMed abstract available
Search for more literature for 3.2.1.98

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
 additional information kinetic data Klebsiella pneumoniae
0.46
-
 short-chain amylose
-
 Klebsiella pneumoniae
7.68
-
 maltohexaose
-
 Klebsiella pneumoniae
10.02
-
 maltopentaose
-
 Klebsiella pneumoniae
50
-
 maltotetraose
-
 Klebsiella pneumoniae

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular ultraviolet induced mutant Klebsiella pneumoniae
-
-
extracellular extracellular enzyme has the same characteristics as the cell-bound enzyme: enzyme is secreted extracellulary due to mutation of parent strain of Klebsiella pneumoniae Klebsiella pneumoniae
-
-

Organism

Organism UniProt Comment Textmining
Klebsiella pneumoniae
-
 Aerobacter aerogenes
-
Klebsiella pneumoniae
-
 ultraviolet-induced mutant
-

Purification (Commentary)

Purification (Comment) Organism
-
 Klebsiella pneumoniae

Reaction

Reaction Comment Organism Reaction ID
(Glcalpha(1-4))m + H2O = (Glcalpha(1-4))m-6 + maltohexaose mechanism of transglycosylation Klebsiella pneumoniae
a

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
amylose + H2O short-chain amylose, DP, average degree of polymerization, = 23 Klebsiella pneumoniae maltohexaose main product, 40% maltohexaose ?
maltohexaose + H2O
-
 Klebsiella pneumoniae maltose + maltotetraose main product ?
maltohexaose + H2O
-
 Klebsiella pneumoniae D-glucose + maltopentaose small amounts ?
maltohexaose + H2O
-
 Klebsiella pneumoniae maltotriose + ? small amounts ?
maltooligosaccharide + H2O maltooligosaccharide larger than G6, maltohexaose Klebsiella pneumoniae maltohexaose + ? main product ?
maltooligosaccharide + H2O 6 glucose units and shorter Klebsiella pneumoniae maltooligosaccharide + ? with less than 6 glucose units ?
maltotetraose transglycosylation, mechanism Klebsiella pneumoniae maltohexaose + maltose main product ?
additional information substrate and product specificity, overview Klebsiella pneumoniae ?
-
 ?
short-chain amylose + H2O
-
 Klebsiella pneumoniae ?
-
 ?
starch + H2O
-
 Klebsiella pneumoniae maltohexaose + ?
-
 ?