Comparison of identical and functional Igh alleles reveals a nonessential role for E? in somatic hypermutation and class-switch recombination.
Li F, Yan Y, Pieretti J, Feldman DA, Eckhardt LA. Comparison of identical and functional Igh alleles reveals a nonessential role for E? in somatic hypermutation and class-switch recombination. J Immunol. 2010 Nov 15; 185(10):6049-57.