neurotensin(1-11) + L-isoleucyl-L-leucine => neurotensin + H2O
neurotensin(1-11) + l-isoleucyl-l-leucine => neurotensin + h2o
neurotensin(1-11) + L-isoleucyl-L-leucine => neurotensin + H2O
neurotensin(1-11) + l-isoleucyl-l-leucine => neurotensin + h2o