the biological refractoriness of the nmumg/rash cells to human egf or human alpha tgf is reflected by a reduction in the total number of cell surface receptors for egf and by an absence of a high-affinity population of binding sites for mouse [ 125l ] egf on these cells as compared to the nmumg or nmumg/pyt cells .
C0699040
of cell surface
C0007634
cells