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  • Title: Dipeptide transport in isolated intestinal brush border membrane.
    Author: Sigrist-Nelson K.
    Journal: Biochim Biophys Acta; 1975 Jun 25; 394(2):220-6. PubMed ID: 1138931.
    Abstract:
    Transport of glycyl-L-leucine into isolated brush border membrane vesicles was studied. On the basis of the following observations it was postulated that glycyl-L-leucine was transported intact by a specific dipeptide mechanism. (1) The differing time course and Na-+ stimulation of glycine, L-leucine and glycyl-L-leucine. (2) The failure of glycine and L-leucine to inhibit glycyl-L-leucine transport. (3) Initial presence of dipeptide within the vesicle. (4) Inhibition of glycyl-L-leucine uptake by other dipeptides. (5) The occurrence of accelerated amino acid uptake in the presence of the dipeptide.
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