Enamelysin is a recently isolated member of the matrix metalloproteinase (M
MP) family of extracellular matrix (ECM)-degrading enzymes. Here we describ
e the isolation and characterization of the mouse enamelysin cDNA. Expressi
on of mouse enamelysin was detectable only in ameloblasts and odontoblasts
of developing teeth. Characterization of mouse enamelysin demonstrated that
it is highly conserved in both its sequence content and pattern of express
ion relative to the porcine, human, and bovine homologues previously descri
bed.