after summing up the amino acid 15n amounts in the animal body , eliminating in each case the tracer aa and taking into account the molecular weight of the aa , there was a good agreement of the intensity of the accumulation of 15n in the individual aa , irrespective of the applied tracer substance : arginine , glutamic acid , cysteine and aspartic acid highest , threonine , phenylalanine and lysine lowest accumulation .
C0002520
aa
C0061472
glutamic acid