Table 3.

Mutations in Sμ region (650bp) from splenic CD43− resting B cells of WT and KI mice with LPS and IL-4 induction

	KI	WT	Chi-square Test
Number of sequences	47	46	p-value
Total length sequenced (bp)	30550	29900	KI vs WT
Unmutated Sequences (%)	32/47, 68.1%	26/46, 56.5%
Number of deletions and insertions	1	15
A. Total number of non-unique point mutations	20	26
Mutation frequency per total sequences (per 100bp)	0.07	0.14	0.0125
Mutation frequency per mutated sequences (per 100bp)	0.22	0.32	0.1938
B. Total number of unique point mutations	18	25
Mutation frequency per total sequences (per 100bp)	0.06	0.13	0.0073
Mutation frequency per mutated sequences (per 100bp)	0.20	0.31	0.1285