R1

Summary

Gene Symbol: R1
Description: starch-granule-bound R1 protein
Alias: GWD, alpha-glucan water dikinase, chloroplastic, Alpha-glucan water dikinase, chloroplastic, starch associated protein R1, starch-related R1 protein
Species: potato

Top Publications

  1. Lorberth R, Ritte G, Willmitzer L, Kossmann J. Inhibition of a starch-granule-bound protein leads to modified starch and repression of cold sweetening. Nat Biotechnol. 1998;16:473-7 pubmed publisher
    ..The reduced phosphate content in potato starch has some secondary effects on its degradability, as the respective plants show a starch excess phenotype in leaves and a reduction in cold-sweetening in tubers...
  2. Ritte G, Lloyd J, Eckermann N, Rottmann A, Kossmann J, Steup M. The starch-related R1 protein is an alpha -glucan, water dikinase. Proc Natl Acad Sci U S A. 2002;99:7166-71 pubmed publisher
    To determine the enzymatic function of the starch-related R1 protein it was heterologously expressed in Escherichia coli and purified to apparent homogeneity...
  3. Mikkelsen R, Baunsgaard L, Blennow A. Functional characterization of alpha-glucan,water dikinase, the starch phosphorylating enzyme. Biochem J. 2004;377:525-32 pubmed publisher
    b>GWD (alpha-glucan,water dikinase) is the enzyme that catalyses the phosphorylation of starch by a dikinase-type reaction in which the beta-phosphate of ATP is transferred to either the C-6 or the C-3 position of the glycosyl residue of ..
  4. Ritte G, Lorberth R, Steup M. Reversible binding of the starch-related R1 protein to the surface of transitory starch granules. Plant J. 2000;21:387-91 pubmed
    ..The 160 kDa protein was identified to be the recently described starch-related R1 protein...
  5. Viks Nielsen A, Hao Jie Chen P, Larsson H, Blennow A, M ller B. Production of highly phosphorylated glycopolymers by expression of R1 in Escherichia coli. Carbohydr Res. 2002;337:327-33 pubmed
    The possible involvement of the starch bound R1 protein from potato (Solanum tuberosum L.) in the phosphorylation of starch was investigated by functional expression and characterisation of R1 in Escherichia coli. By expression of R1 in E...
  6. Mikkelsen R, Blennow A. Functional domain organization of the potato alpha-glucan, water dikinase (GWD): evidence for separate site catalysis as revealed by limited proteolysis and deletion mutants. Biochem J. 2005;385:355-61 pubmed publisher
    The potato tuber (Solanum tuberosum) GWD (alpha-glucan, water dikinase) catalyses the phosphorylation of starch by a dikinase-type reaction mechanism in which the beta-phosphate of ATP is transferred to the glucosyl residue of ..