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. 1984 Jan 25;259(2):696-8.

Amino acid sequence of retinal transducin at the site ADP-ribosylated by cholera toxin

C Van Dop, M Tsubokawa, H R Bourne, J Ramachandran
  • PMID: 6582062
Free article

Amino acid sequence of retinal transducin at the site ADP-ribosylated by cholera toxin

C Van Dop et al. J Biol Chem. .
Free article

Abstract

Transducin was [32P]ADP-ribosylated by cholera toxin in bovine retinal rod outer segments and then partially purified on omega-amino octyl agarose to remove other ADP-ribosylated proteins. Trypsin digestion of the ADP-ribosylated transducin and further purification using boronate-polyacrylamide beads and high performance liquid chromatography yielded a single radiolabeled tetrapeptide, Ser-Arg-Val-Lys. The ADP-ribose is linked to the guanidinium group of arginine.

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