passages.id: split_8_test_1340_passage
passages.type: progene_text
passages.text: The c-mpl - del - transfected cells expressed greater amounts of c-mpl - del RNA and protein than the comparable c-mpl - wt-transfected cells , however flow cytometry analysis could not detect any c-mpl receptor on the surface of the c-mpl - del - transfected cells .