New placental proteins and their potential diagnostic significance as tumour markers.

Five new soluble placental tissue proteins (PP8, PP9,, PP10, PP11 and PP12) have been isolated, purified and characterized. PP, has the electrophoretic mobility of a beta 1-globulin; the other 4 proteins are alpha 1-globulins. The molecular weights of these proteins range from 25 000--65 000 daltons. They all are glycoproteins with carbohydrate contents… (More)