Reviews of Physiology, Biochemistry and Pharmacology 155

Contents S. Rospert, M. Rakwalska and Y. Dubaquié Polypeptide chain termination and stop codon readthrough on eukaryotic ribosomes A.S. Verkman Novel roles of aquaporins revealed by phenotype analysis of knockout mice M.J. Cismowski and S.M. Lanier Activation of heterotrimeric G-proteins independent of a G-protein coupled receptor and the implications for signal processing