Pulcherosine, an oxidatively coupled trimer of tyrosine in plant cell walls: its role in cross-link formation.

@article{Brady1998PulcherosineAO,
  title={Pulcherosine, an oxidatively coupled trimer of tyrosine in plant cell walls: its role in cross-link formation.},
  author={James D Brady and I. Sadler and Stephen c. Fry},
  journal={Phytochemistry},
  year={1998},
  volume={47 3},
  pages={349-53}
}
An oxidatively coupled trimer of tyrosine has been isolated from hydrolysates of primary cell walls of a tomato cell culture. UV-absorption, fluorescence and 1H NMR spectra showed that the trimer was pulcherosine, composed of isodityrosine and tyrosine oxidatively coupled via a biphenyl linkage such that the aromatic core is 2,2'-dihydroxy-3-phenoxybiphenyl. Pulcherosine could act as an intermediate in the conversion of isodityrosine to the tetramer, di-isodityrosine. Steric considerations show… CONTINUE READING

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