on the basis of this preferential uptake of amino acids , radioactive iodine-labeled amino acids and peptides , gamma-131i-iodo-alpha-aminobutyric acid , n-2-131i-monoiodoacetyl-l- and d-leucines , l- and d-leucine 2-131i-iodoethyl esters , 125i or 131i-labeled dipeptides , and insulin 125i-a and 131i-b chains , were prepared and assayed for their distribution in mouse organs and ehrlich ascites tumor cells .
C0301714
basis
C0002520
amino acids