[Isolation of a phosphoprotein from preeruptive dentin from molars of domestic pigs (Sus scrofa domesticus)].

Isolation of a phosphoprotein from dentin of pre-eruptive molars of Sus scrofa domesticus. A protein with a relative molecular mass of 60,000 kD was isolated from dentin of unerupted pig molars. The electrophoretically homogeneous protein was identified as phosphoprotein with a specific staining procedure. The phosphorylation degree is 75%. The amino-acid composition and the molecular mass were compared with values of other species.