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Literature summary for 2.4.1.21 extracted from

  • Miyamoto, J.; Ishigami, T.; Hayashi, T.; Nakajima, T.; Ichishima, E.; Matsuda, K.
    Some properties of granule-bound starch synthase in suspension-cultured soybean cells (1989), Agric. Biol. Chem., 53, 1987-1988.
No PubMed abstract available
Search for more literature for 2.4.1.21

Inhibitors

Inhibitors Comment Organism Structure
ADP 0.1 mM, 26% inhibition Glycine max
ATP 0.1 mM, 22% inhibition Glycine max
Cu2+ significant inhibition Glycine max

Localization

Localization Comment Organism GeneOntology No. Textmining
starch grain
-
 Glycine max 43036
-

Metals/Ions

Metals/Ions Comment Organism Structure
K+ slight activation Glycine max
Mg2+ slight activation Glycine max

Organism

Organism UniProt Comment Textmining
Glycine max
-
 soybean
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP-glucose + alpha-1,4-polyglucan citrate independent enzyme requires a glucan primer e.g. rabbit liver glycogen Glycine max ADP + alpha-1,4-polyglucan
-
 ?
ADP-glucose + alpha-1,4-polyglucan glucosyl acceptor: oyster glycogen Glycine max ADP + alpha-1,4-polyglucan
-
 ?
ADP-glucose + alpha-1,4-polyglucan glucosyl acceptor: starch Glycine max ADP + alpha-1,4-polyglucan
-
 ?
ADP-glucose + alpha-1,4-polyglucan glucosyl acceptor: amylopectin Glycine max ADP + alpha-1,4-polyglucan
-
 ?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
-
 Glycine max

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
 stable up to Glycine max

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
-
 Glycine max

pH Range

pH Minimum pH Maximum Comment Organism
6 9
-
 Glycine max