Figure 4.
Extent of allelic inclusion in the edited B-cell compartment. (A) IgκαHEL/h splenic B cells were isolated by single-cell sorting, and 387 Igκ transcripts were amplified by RT-PCR and analyzed by sequencing (top). From this analysis, six populations were characterized as shown (bottom). The VκαHEL prerecombined light chain is depicted by a yellow rectangle, and secondary recombination events at the mCκ and hCκ alleles are depicted with red or blue rectangles, respectively. OOF rearrangements are depicted by rectangles with a slash, and use of the lambda locus is represented with a green rectangle. (B) Analysis of in-frame and OOF status of Igκ transcripts in IgκαHEL/h or Igκm/h B cells. IgκαHEL/h cells were the same as those shown in A.