A Protein Present in Fetal but Not in Maternal Rat Serum

Science  26 Oct 1962:
Vol. 138, Issue 3539, pp. 510-511
DOI: 10.1126/science.138.3539.510


Immunoelectrophoretic comparison of maternal and fetal rat serum proteins with antiserum to adult rat serum proteins showed a unique protein in the fetal serum. The fetal protein exhibited in agar gel electrophoresis a variable mobility that was dependent on concentration. The fetal protein reacted strongly with a nonspecific antiserum.