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Literature summary extracted from

  • Takaha, T.; Yanase, M.; Okada, S.; Smith, S.M.
    Disproportionating enzyme (4-alpha-glucanotransferase; EC 2.4.1.25) of potato. Purification, molecular cloning, and potential role in starch metabolism (1993), J. Biol. Chem., 268, 1391-1396.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
2.4.1.25 cDNA clone isolated and expressed in Escherichia coli Solanum tuberosum

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
2.4.1.25 amyloplast
-
Solanum tuberosum 9501
-
2.4.1.25 plastid
-
Solanum tuberosum 9536
-

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
2.4.1.25 59500
-
native enzyme, SDS-PAGE Solanum tuberosum
2.4.1.25 60000
-
SDS-PAGE Solanum tuberosum
2.4.1.25 64950
-
estimated from amino acid sequence, deduced from nucleotide sequence Solanum tuberosum
2.4.1.25 65000
-
precursor, SDS-PAGE Solanum tuberosum

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.4.1.25 maltodextrin + maltose Solanum tuberosum
-
maltooligosaccharides
-
?

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.25 Solanum tuberosum Q06801 potato
-
2.4.1.25 Solanum tuberosum Q06801 L.cv. May Queen
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.4.1.25
-
Solanum tuberosum

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.4.1.25 leaf
-
Solanum tuberosum
-
2.4.1.25 root
-
Solanum tuberosum
-
2.4.1.25 stem
-
Solanum tuberosum
-
2.4.1.25 stolon
-
Solanum tuberosum
-
2.4.1.25 tuber
-
Solanum tuberosum
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.4.1.25 47.5
-
-
Solanum tuberosum

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.25 1,4-alpha-D-glucan + 1,4-alpha-D-glucan
-
Solanum tuberosum maltooligosaccharides
-
?
2.4.1.25 1,4-alpha-D-glucan + glucose
-
Solanum tuberosum maltooligosaccharides
-
?
2.4.1.25 amylopectin + D-glucose
-
Solanum tuberosum small oligosaccharides without maltose ?
2.4.1.25 amylopectin + maltopentaose
-
Solanum tuberosum maltooligosaccharides
-
?
2.4.1.25 amylose + D-glucose
-
Solanum tuberosum low molecular mass oligosaccharides
-
?
2.4.1.25 amylose + maltopentaose
-
Solanum tuberosum maltooligosaccharides
-
?
2.4.1.25 amylose + maltopentaose
-
Solanum tuberosum cyclic alpha-1,4-glucan
-
?
2.4.1.25 maltodextrin + maltose
-
Solanum tuberosum maltooligosaccharides
-
?
2.4.1.25 maltopentaose + maltotriose
-
Solanum tuberosum D-glucose + maltooligosaccharides
-
?
2.4.1.25 maltotetraose + maltopentaose
-
Solanum tuberosum maltooligosaccharides
-
?
2.4.1.25 maltotetraose + maltotriose
-
Solanum tuberosum maltodextrins
-
?
2.4.1.25 maltotetraose + maltotriose
-
Solanum tuberosum D-glucose + maltooligosaccharides
-
?
2.4.1.25 additional information maltose is not a product Solanum tuberosum ?
-
?
2.4.1.25 additional information maltose is no substrate Solanum tuberosum ?
-
?
2.4.1.25 starch + D-glucose
-
Solanum tuberosum low molecular mass oligosaccharides
-
?
2.4.1.25 starch + maltopentaose
-
Solanum tuberosum alpha-1,4-D-glucans
-
?

Subunits

EC Number Subunits Comment Organism
2.4.1.25 monomer 1 * 60000, SDS-PAGE Solanum tuberosum