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Literature summary extracted from

  • Clarke, B.; Liang, R.; Morell, M.K.; Bird, A.R.; Jenkins, C.L.; Li, Z.
    Gene expression in a starch synthase IIa mutant of barley: changes in the level of gene transcription and grain composition (2008), Funct. Integr. Genomics, 8, 211-221.
    View publication on PubMed

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.21 Hordeum vulgare
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 shrunken grain mutant M292
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Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.4.1.21 seed the barley shrunken grain mutant M292 has a novel high-amylose starch phenotype caused by a mutation in the starch synthase IIa gene (SsIIa) located at the starch excess-6 (sex6) locus on chromosome 7H of barley. The loss of SSIIa enzyme activity leads to a decrease in amylopectin synthesis to less than 20% of the levels found in wild-type grains Hordeum vulgare
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Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.21 additional information the barley shrunken grain mutant M292 has a novel high-amylose starch phenotype caused by a mutation in the starch synthase IIa gene (SsIIa) located at the starch excess-6 (sex6) locus on chromosome 7H of barley. The loss of SSIIa enzyme activity leads to a decrease in amylopectin synthesis to less than 20% of the levels found in wild-type grains Hordeum vulgare ?
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 ?

Synonyms

EC Number Synonyms Comment Organism
2.4.1.21 SSIIa
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 Hordeum vulgare
2.4.1.21 starch synthase IIa
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 Hordeum vulgare