leucine,leucyl,tryptophyl,threonyl
Leucine
153150-45-9L-Leucine,L-a-glutamyl-L-isoleucyl-L-tyrosyl-L-lysyl-L-arginyl-L-tryptophyl-L-isoleucyl-L-isoleucyl-
138967-34-7L-Leucine,N-[N-[1-[N-[N-[N-[N-[N-(N-L-alanylglycyl)-L-seryl]-L-isoleucyl]-L-threonyl]-L-threonyl]-L-leucyl]-L-prolyl]-L-alanyl]-
922184-31-4L-Leucine,L-leucyl-L-leucyl-L-isoleucyl-L-lysylglycylglycyl-L-valyl-L-a-glutamyl-L-valyl-