Sequence analysis of H5R phosphopeptide. Fraction 29 from Fig 1c was subjected to automatic Edman degradation, and the 32P radioactivity released at each stage measured. The identity of the phenylthiohydantoin derivative from the first seven cycles was unequivocal and is indicated.
Brown et al. BMC Biochemistry 2000 1:2-2 doi:10.1186/1471-2091-1-2