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Literature summary extracted from

  • Rahman, A.; Wong, K.s.; Jane, J.l.; Myers, A.M.; James, M.G.
    Characterization of SU1 isoamylase, a determinant of storage starch structure in maize (1998), Plant Physiol., 117, 425-435.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.2.1.68 gene su1, expressed in Escherichia coli, pAR4 Zea mays

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.2.1.68 75000
-
SU1 Zea mays
3.2.1.68 79000
-
maize gene su1 recombinant polypeptide, expressed in E. coli Zea mays
3.2.1.68 141000
-
isoamylase II, gel filtration Zea mays

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.2.1.68 starch + H2O Zea mays
-
?
-
r

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.68 Zea mays
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.68
-
Zea mays

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.2.1.68 endosperm
-
Zea mays
-
3.2.1.68 kernel
-
Zea mays
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.68 amylopectin + H2O or the beta-limit dextrins, cleaves the branching points completely in vitro Zea mays maltose + maltooligosaccharides
-
r
3.2.1.68 glycogen + H2O cleaves the branching points completely in vitro Zea mays maltose + maltooligosaccharides
-
r
3.2.1.68 glycogen + H2O or the beta-limit dextrins Zea mays maltose + maltooligosaccharides
-
r
3.2.1.68 phythoglycogen + H2O
-
Zea mays ?
-
r
3.2.1.68 starch + H2O
-
Zea mays ?
-
r

Synonyms

EC Number Synonyms Comment Organism
3.2.1.68 alpha 1,6-glucan hydrolase
-
-
3.2.1.68 isoamylase II
-
Zea mays
3.2.1.68 maize Sugary-1 isoamylase
-
Zea mays
3.2.1.68 SU1 isoamylase
-
Zea mays

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.68 25 37
-
Zea mays

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.68 6 7
-
Zea mays