Table 1.

B cell reconstitution after PerC transfer to nonirradiated hosts

Host	n	Recipient Igh	PerC§ Igh	% B-2* ± SD	% B-1* ± SD	Serum IgMa, μg/ml	Serum IgMb, μg/ml
μ−/−	8	Ighb	Igha	0.3  ± 0.3	0.03  ± 0.02	< 0.015	< 0.015
C57-Ab†	7	Ighb	Igha	11  ± 2.6	18  ± 2.4	250  ± 48	330  ± 59
RAG−/−‡	5	Ighb	Igha	3.6  ± 2.4	19  ± 5.4	230  ± 89	540  ± 440
C57/Igha	6	Igha	None	22  ± 2.4	26  ± 3.7	210  ± 130	< 0.015
C57BL/6	7	Ighb	None	13  ± 5.2	22  ± 5.5	< 0.015	590  ± 380

*Shown is the frequency (± SD) of cells among total live recipient PerC cells. 

^†Mice were treated from birth for 6 weeks with a total of 2 mg per mouse anti-IgM^b. 

^‡Mice received i.v. 3 × 10⁶ bone marrow from C57BL/6 2–3 months before analysis. 

^§Mice received 5 × 10⁶ PerC cells from C57/Igh^a 2–3 months before analysis.