Stavezner, J.

mutation repair junction ercc 1ϫ/ϫ cells recombination ercc 1-xpf switch segment class region 1-xpf b cells sequence ␮ segments ercc 1 msh 2 immunoglobulin antibody ␥3 segments nucleotide ␮–s junctions class switch recombination littermate wt cells recombined 2003. splenic b cells wt littermates isotype hypermutation excision mutation frequency frequency culture endonuclease splenic hotspot lesion nucleotide excision repair ercc 1ϫ/ϫ mice embo j table 2002. stavnezer immunol primers mechanism deficiency schrader mismatch acids res cell division ercc 1ϫ/ϫ processing table iii antibody class –␦ dextran –s junctions nonhomologous dna ends 2001. sg 3-4 primers immunoglobulin switch regions wt b cells cytidine polymerase pathway percent wilson protein hoeijmaker 2000. single-stranded dna pms 2 deaminase msh 3 double-strand ␮ segment dextran dna repair activation-induced