Sequence composition of >1 nucleotide CSR insertions.

30 bases flanking each side of the insertion are shown. The numbers separated by colons give the position relative to the beginning of the Sμ and Sγ genomic sequences. New mutations (different from the reference sequence) are shown in lower case. For some longer insertions (indicated in bold), homologies were identified in the switch region, at the positions indicated in the right column. Microhomologies at the junction site are underlined. A dash (-) indicates a base deletion. Sequences (graphed in Figure 4E) are from Polq+/+ (WT) and Polq−/− (KO) splenic B cells that were treated with NU7026 or mock-treated.Sequence composition of >1 nucleotide CSR insertions.