L-tyrosylglycylglycine + L-phenylalanyl-L-leucine => Leu-enkephalin + H2O
l-tyrosylglycylglycine + l-phenylalanyl-l-leucine => leu-enkephalin + h2o
L-tyrosylglycylglycine + L-phenylalanyl-L-leucine => Leu-enkephalin + H2O
l-tyrosylglycylglycine + l-phenylalanyl-l-leucine => leu-enkephalin + h2o