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Charge transfer (CT) transitions between the C-terminal carboxylate and peptide group have been investigated for alanyl-X and X… Expand The separation of stereoisomers, particularly enantiomers, is important when their physiological activity differs. We have… Expand 1. Studies have been made of jejunal absorption rates in vivo in the rat of the stereoisomers of alanylphenylalanine, leucyl… Expand Abstract— A reproducible extraction and fractionation scheme for the isolation of peptides from nervous tissue is described. The… Expand