__SP__ __NODE__ protein in Cho cells overproducing mutant __SP__ __NODE__ protein ( C terminal truncation 807 End with its cytoplasmic domain deleted ) causes little or no change in uptake of __NODE__ in cell borders from Cho cells overproducing mutant __SP__ __NODE__ protein ( C terminal truncation 807 End with its cytoplasmic domain deleted ) to __NODE__ in Cho cells overproducing mutant __SP__ __NODE__ protein ( C terminal truncation 807 End with its cytoplasmic domain deleted ) .