Table 1.

Typical NCRs-specific fluorescence intensity values obtained with control peripheral blood purified NK cells from healthy donors and used for calculation of MFI values.

		Fluorescence intensity
	Untreated controls purified NK cells
Cell type (dot plot quadrant)*	NKp30	NKp44	NKp46
Double-stained cells	115·57	137·40	141·70
Purified NK cells which do not express NCR	55·33	91·74	95·37
Mean**	60·24	45·66	56·33

^*Cells were obtained from the upper and lower right quadrants of a dot plot obtained from flow cytometric determinations.

^**Mean was defined as the difference between the geometric mean of the fluorescence emitted by the purified NK cells that express the specific NCRs analysed (NKp46, NKp44 or NKp30) and the geometric mean of the fluorescence emitted by the purified NK cells that do not express the NCRs (background).