[Anti-mullerian hormone : a new glycoprotein (author's transl)].

The hypothesis that anti-müllerian hormone might be a glycoprotein was suggested by the discrepancy between various methods of evaluation of the molecular weight of the substance responsible for anti-müllerian activity. Incorporation of radioactive fucose to the proteins synthesised by the fetal calf testis in vitro resulted in specific labelling of bioactive molecules, once labelled contaminants had been removed by prior partial purification.