EC Number |
General Information |
Reference |
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2.4.1.242 | evolution |
diversification of GBSS genes in plants, overview |
723548 |
2.4.1.242 | evolution |
genotyping and phylogenetic analysis, starch phenotyping |
736995 |
2.4.1.242 | malfunction |
a null mutation of the Wx gene in each of the three genomes is associated with starch almost entirely consisting of the branched glucan polymer amylopectin (waxy starch), with corresponding changes in functionality |
759036 |
2.4.1.242 | malfunction |
Arabidopsis thaliana ptst mutants synthesise amylose-free starch and are phenotypically similar to mutants lacking GBSS. Mutation of the CBM domain of PTST causes GBSS to remain in the plastid stroma |
737059 |
2.4.1.242 | malfunction |
loss of GBSS activity results in starch granules containing mostly amylopectin and little or no amylose (phenotype waxy) |
705654 |
2.4.1.242 | malfunction |
phenotyping of a GBSSIa or GBSSIb null mutant |
736995 |
2.4.1.242 | malfunction |
waxy wheat, which accumulates amylose-free starch, is developed by the elimination of granule-bound starch synthase I (GBSSI),1 which is responsible for amylose synthesis in endosperm tissue. Starch of Wx wheat shows a modified gelatinization curve, with a lower gelatinization onset temperature, higher peak viscosity, and lower setback compared to wild-type wheat |
722432 |
2.4.1.242 | metabolism |
relationships among amylose and amylopectin accumulation and enzyme activities related to starch synthesis, involving GBSS, overview |
722897 |
2.4.1.242 | metabolism |
the enzyme is involved in the synthesis of amylose |
759036 |
2.4.1.242 | metabolism |
tropical tree Cecropia peltata is a rare example of an organism able to make either polymer type, glycogen and starch. Glycogen accumulates to very high levels in specialized myrmecophytic structures (Müllerian bodies), whereas starch accumulates in leaves. Compared with polymers comprising leaf starch, glycogen is more highly branched and has shorter branches, factors that prevent crystallization and explain its solubility |
736982 |