Waugh, R.Steinborner, S.Bowie, J.Wallace, J.Tyler, M.Hu, P.Gross, M.2006-07-052006-07-051995Australian Journal of Chemistry: an international journal for chemical science, 1995; 48(12):1981-19870004-94251445-0038http://hdl.handle.net/2440/11262<jats:p>Three related peptides, caeridins 1.1-1.3, have been isolated from the green tree frog Litoria gilleni. Caeridins 1.1 and 1.2 are dodecapeptides differing only in having α and β Asp at residue 4 [viz. Gly Leu Leu Asp Gly Leu Leu Gly Thr Leu Gly Leu (NH2)]. Caeridin 1.3 is the corresponding cyclic amino succinyl derivative derived formally by cyclization of Asp(4) and Gly (5). Hydrolysis of caeridin 1.3 yields caeridin 1.1 and 1.2 in the ratio 3:1. This constitutes a rare case of the isolation of three such related peptides from a natural system. </jats:p>enTwo isomeric a and b aspartyl dodecapeptides and their cyclic amino succinyl analogues from the Australian Green Tree Frog Litoria gilleniJournal article0030004426001995157910.1071/CH9951981A1995TQ308000072-s2.0-000026595968432