| Cell type . | Total . | In-frame . | VPTC . | CPTC . |
|---|---|---|---|---|
| n | % | % | % | |
| Pro–B/pre–B cells | 51 | 33.3 | 31.4 | 35.3 |
| GC B cells | 53 | 60.4 | 18.9 | 20.7 |
| Plasma cells | 47 | 72.3 | 2.1 | 25.5 |
| Cell type . | Total . | In-frame . | VPTC . | CPTC . |
|---|---|---|---|---|
| n | % | % | % | |
| Pro–B/pre–B cells | 51 | 33.3 | 31.4 | 35.3 |
| GC B cells | 53 | 60.4 | 18.9 | 20.7 |
| Plasma cells | 47 | 72.3 | 2.1 | 25.5 |
Pro–B/pre–B cells (B220lo/IgLneg) and PCs (B220neg/CD138pos) were isolated from bone marrow and GC B cells (B220hi/PNAhi) from Peyer’s patches, and PCRs were performed on genomic DNA using Vκcons-for/Jκ5-rev primers (Fig. 1 A). Productive VκJκ5 junctions were assigned as in-frame and nonproductive junctions as VPTC and CPTC. Data are from two independent cell sorting experiments. n = total number of sequences.