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Literature summary for 2.4.1.21 extracted from

  • Takemoto-Kuno, Y.; Suzuki, K.; Nakamura, S.; Satoh, H.; Ohtsubo, K.
    Soluble starch synthase I effects differences in amylopectin structure between indica and japonica rice varieties (2006), J. Agric. Food Chem., 54, 9234-9240.
    View publication on PubMed

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ADP-glucose + (1,4-alpha-glucosyl)n Oryza sativa SSI regulates the population of short chains. Low activity of SSI gives rise to the decrease of short chains in amylopectin of indica rice varieties, suggesting that SSI effects the differences in physicochemical properties between the varieties ADP + (1,4-alpha-glucosyl)n+1
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Organism

Organism UniProt Comment Textmining
Oryza sativa
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var indica and var. japonica
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Source Tissue

Source Tissue Comment Organism Textmining
seed the SSI activity of an indica rice variety, ‘Kasalath’, is significantly lower than that of a japonica rice variety, ‘Nipponbare’. The low activity in ‘Kasalath’ is maintained during seed development The low expression of SSI in ‘Kasalath’ is controlled at the transcription levels of SSI mRNA Oryza sativa
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP-glucose + (1,4-alpha-glucosyl)n SSI regulates the population of short chains. Low activity of SSI gives rise to the decrease of short chains in amylopectin of indica rice varieties, suggesting that SSI effects the differences in physicochemical properties between the varieties Oryza sativa ADP + (1,4-alpha-glucosyl)n+1
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Synonyms

Synonyms Comment Organism
starch synthase I
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Oryza sativa