as substrates for these enzymes , they were better than esters of alpha-n-toluene-p-sulphonyl-l-homoarginine or of alpha-n-toluene-p-sulphonyl-l-ornithine but not as good as esters of alpha-n-toluene-p-sulphonyl-l-arginine .
C0019877
homoarginine
C0003765
arginine