1.3.3.13	cyclo(L-4-O-methyltyrosine-L-leucine) + 2 O2	-	
1.3.3.13	cyclo(L-Leu-L-Phe) + O2	the catalytic reaction of the natural substrate cyclo(L-leucyl-L-phenylalanyl) occurs in a two-step sequential reaction leading first to cyclo(alpha,beta-dehydro-Phe-L-Leu) and finally to albonoursin	
1.3.3.13	cyclo(L-Leu-L-Phe) + O2	-	
1.3.3.13	cyclo(L-leucyl-L-phenylalanyl) + 2 O2	-	
1.3.3.13	cyclo(L-leucyl-L-phenylalanyl) + O2	-