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Literature summary extracted from

  • Denyer, K.; Waite, D.; Edwards, A.; Martin, C.; Smith, A.M.
    Interaction with amylopectin influences the ability of granule-bound starch synthase I to elongate malto-oligosaccharides (1999), Biochem. J., 342, 647-653.
No PubMed abstract available

Cloned(Commentary)

EC Number Cloned (Comment) Organism
2.4.1.21 expression of granule-bound starch synthase I in Escherichia coli Pisum sativum
2.4.1.21 expression of granule-bound starch synthase in Escherichia coli Solanum tuberosum

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.4.1.21 additional information
-
 additional information
-
 Solanum tuberosum
2.4.1.21 additional information
-
 additional information recombinant starch synthase II, amylopectin: 4.6 mg/ml Pisum sativum
2.4.1.21 15.3
-
 maltotriose recombinant granule-bound starch synthase I Solanum tuberosum

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.21 Pisum sativum
-
 starch synthase II
-
2.4.1.21 Solanum tuberosum
-
 granule-bound starch synthase I
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.21 ADP-glucose + maltotriose
-
 Pisum sativum ADP + maltotetraose
-
 ?
2.4.1.21 ADP-glucose + maltotriose 6.4fold activation of maltotriose elongation by granule-bound starch synthase I by amylopectin promoting a processive mode of maltotriose elongation Solanum tuberosum ADP + maltotetraose
-
 ?