dynorphin A-(1-13) + H2O = dynorphin A-(1-12) + L-lysine
dynorphin a-(1-13) + h2o = dynorphin a-(1-12) + l-lysine
dynorphin A-(1-13) + H2O = dynorphin A-(1-12) + L-lysine
dynorphin a-(1-13) + h2o = dynorphin a-(1-12) + l-lysine