... defensive skin secretion of the yellow-bellied toad (B. variegata)andthesubsequent cloning of their precursor cDNAs from a skin- derived cDNA library. In addition, both peptides werechemically synthesized ... data on phyllokinin (braykinyl-isoleucyl-tyrosine-0-sulphate) and bradykinyl-isoleucyl-tyrosine. Br.J.Pharmacol.27, 479–485.16. Yasuhara, T., Hira, M., Nakajima, T., Yanaihara, N. &Yanaihara, ... This sensitivity is well within the capabilityof the ES-MS system employed.The primary structural diversity displayed withinamphibian skin bradykinins may not simply be due tophylogenetic differences...