no influence of several kinds of amino acids ( leucine , histidine , phenylalanine , valine , alanine , glutamic acid and glycine ) and peptides ( prolyl-leucine , glycyl-glycine , glycyl-sarcosine , glycyl-leucine and gamma-glutamyl-cysteinylglycine ) was observed for benzylpenicillin uptake into hepatocytes .
C0002520
amino acids
C0001898
alanine