Table 1.

TCR levels are low on thymocytes and T cells in FcRγTG ζKO mice

Cell type	Mean channel staining with anti-Cβ in mice
	ζKO	FcRγTG ζKO	ζ+
CD4+CD8+ thymocytes*	4.0 ± 1.0†	6.4 ± 1.6	13.7 ± 2.5
CD4+ thymocytes	4.6 ± 0.5	27.1 ± 5.1	215.6 ± 15.0
CD8+ thymocytes	4.4 ± 0.4	49.7 ± 9.4	152.8 ± 19.9
CD4+ lymph node T cells	4.7 ± 0.7	6.5 ± 1.3	133.6 ± 4.7
CD8+ lymph node T cells	5.6 ± 1.2	24.6 ± 3.2	124.2 ± 6.0

^*Gated on all CD4⁺CD8⁺ thymocytes even though some are TCR⁻ because the TCR⁺ and TCR⁻ populations could not be distinguished clearly (see Fig. 2b). 

^†Data are given as the mean ± SE of five independent assays.