isoelectric focusing profiles of alpha-l-fucosidase recovered from human embryonal carcinoma ( ec ) and seminoma were compared with those of mouse germ cell tumor-derived stem cells and some human somatic cell neoplasms in an attempt to determine whether ec cells could be used as a source of human basic isoelectric forms of the enzyme previously identified in normal and malignant mouse embryonic cells . alpha-l-fucosidase activity in all human tumors was associated with isoelectric forms in the isoelectric point ( pl ) range between approximately 4.5 and 7 , corresponding to the range seen in normal human tissues .
C0036631
seminoma
C0205851
of