we used 2-parameter flow cytometry ( fcm ) to investigate the relationship between the cell cycle phases and 3 proteins whose expression is known to increase in proliferating cells : the surface antigen transferrin receptor ( trf-r ) , the `` '' cyclin '' '' ( a proliferating cell nuclear antigen , pcna ) , and the nuclear antigen recognized by the monoclonal antibody ( moab ) ki-67 .
C1516337
cell cycle phases
C0007634
cells