this homology is one of six amino acids corresponding to interleukin-2 ( il-2 ) residues 14-19 ( leu-glu-his-leu-leu-leu ) and to the carboxy terminal six amino acids of hiv envelope protein gp41 ( leu-glu-arg-ile-leu-leu ) .
C0002520
amino acids
C0061472
glu