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Literature summary extracted from

  • Zhang, X.; Myers, A.M.; James, M.G.
    Mutations affecting starch synthase III in Arabidopsis alter leaf starch structure and increase the rate of starch synthesis (2005), Plant Physiol., 138, 663-674.
    View publication on PubMedView publication on EuropePMC

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.4.1.21 ADP-glucose + alpha-1,4-polyglucan Arabidopsis thaliana two insertion mutations at the AtSS3 gene locus, termed Atss3-1 and Atss3-2, condition complete loss of SSIII activity and prevent normal gene expression at both the mRNA and protein levels. Total SS activity is increased in both Atss3 mutants and a specific SS activity appears to be upregulated. In addition to its expected direct role in starch assembly, SSIII also has a negative regulatory function in the biosynthesis of transient starch in Arabidopsis ADP + alpha-1,4-polyglucan
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Organism

EC Number Organism UniProt Comment Textmining
2.4.1.21 Arabidopsis thaliana
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Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.4.1.21 leaf
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 Arabidopsis thaliana
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Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.21 ADP-glucose + alpha-1,4-polyglucan two insertion mutations at the AtSS3 gene locus, termed Atss3-1 and Atss3-2, condition complete loss of SSIII activity and prevent normal gene expression at both the mRNA and protein levels. Total SS activity is increased in both Atss3 mutants and a specific SS activity appears to be upregulated. In addition to its expected direct role in starch assembly, SSIII also has a negative regulatory function in the biosynthesis of transient starch in Arabidopsis Arabidopsis thaliana ADP + alpha-1,4-polyglucan
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 ?

Synonyms

EC Number Synonyms Comment Organism
2.4.1.21 SSIII
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 Arabidopsis thaliana
2.4.1.21 starch synthase III
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 Arabidopsis thaliana