Table 1.

Frequencies of 3-83Ig⁺ and λ⁺ spleen B cells

Genotype	% 3-83Ig+*	% λ+*
3-83Hi/+; 3-83ki/+; H-2d†	22.1  ±  7.3 (n = 4)	31.4  ± 4.0 (n = 7)
3-83Hi/+; 3-83ki/+; H-2d; CD45−/−‡	76.2  ± 21.7 (n = 3)	13.4  ± 4.2 (n = 3)
3-83Hi/Hi; 3-83ki/ki; H-2d; BALB/c§	90.6  ±  5.5 (n = 6)	3.8  ± 0.7 (n = 4)
3-83Hi/Hi; 3-83ki/ki; H-2d; BALB/c × C57BL/6 × 129	71.9  ±  6.3 (n = 6)	17.8  ± 7.6 (n = 6)
3-83Hi/Hi; 3-83ki/ki; H-2b; BALB/c × C57BL/6 × 129	8.8  ±  3.2 (n = 4)	52.9  ± 8.3 (n = 4)
Wild-type BALB/c × C57BL/6	3.7  ±  2.7 (n = 8)	4.0  ± 0.2 (n = 7)

*Frequencies of 3-83⁺ and λ⁺ cells are calculated, respectively, in the IgM⁺ and B220⁺ (CD22⁺ for CD45−/− mice) populations. 

^†Mice on BALB/c or mixed (BALB/c × C57BL/6 × 129) background. 

^‡Mice on mixed (BALB/c × C57BL/6 × 129) background. 

^§Mice with or without Jκ3-5 segments downstream of the 3-83k insertion.