... This sensitivity is well within the capability of the ES-MS system employed The primary structural diversity displayed within amphibian skin bradykinins may not simply be due to phylogenetic differences ... Pharmacological 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, ... preprobradykinin cDNAs were consistently cloned from the skin library and each encoded a single copy of a novel bradykinin-related peptide (Ala3,Thr6)-bradykinin (BVK-1) or (Val1,Thr3,Thr6)-bradykinin...