This sequence corresponds to the sequence found naturally in mucin-type MUC5AC glycoprotein, but with 2 amino acid substitutions – a reflection of mucin molecule polymorphism. MUC5AC gene is mainly expressed in gastric and tracheo-bronchial mucosae. Duperat, V; et al., Biochem. J., 305, 211, (1995); Ten Hagen, K; et al., J. Biol. Chem., 277, 22616, (2002).
M.W.: 1541.73


