neurotensin-(1-8) + H2O <=> neurotensin-(1-7) + L-arginine
neurotensin-(1-8) + h2o <=> neurotensin-(1-7) + l-arginine
neurotensin-(1-8) + H2O <=> neurotensin-(1-7) + L-arginine
neurotensin-(1-8) + h2o <=> neurotensin-(1-7) + l-arginine