Starch granule initiation is controlled by a heteromultimeric isoamylase in potato tubers.

@article{Bustos2004StarchGI,
  title={Starch granule initiation is controlled by a heteromultimeric isoamylase in potato tubers.},
  author={Regla Bustos and Brendan F. Fahy and Christopher M. Hylton and Robert Seale and N. Miranda Nebane and Anne Edwards and Cathie Martin and Alison M Smith},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2004},
  volume={101 7},
  pages={2215-20}
}
Starch granule initiation is not understood, but recent evidence implicates a starch debranching enzyme, isoamylase, in the control of this process. Potato tubers contain isoamylase activity attributable to a heteromultimeric protein containing Stisa1 and Stisa2, the products of two of the three isoamylase genes of potato. To discover whether this enzyme is involved in starch granule initiation, activity was reduced by expression of antisense RNA for Stisa1 or Stisa2. Transgenic tubers… CONTINUE READING

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