abnormal immature B cell morphology, abnormal immunoglobulin V(D)J recombination, abnormal immunoglobulin heavy chain V(D)J recombination, abnormal immunoglobulin light chain V-J recombination, abnormal kidney morphology, abnormal late pro-B cell, abnormal lymph node germinal center morphology, abnormal marginal zone B cell morphology, abnormal marginal zone B cell physiology, abnormal mature B cell morphology, abnormal somatic hypermutation frequency, abnormal spleen B cell follicle morphology, abnormal thymus morphology, absent B-1 B cells, absent B-1a cells, absent B-1b cells, absent Peyer's patches, absent follicular B cells, absent marginal zone B cells, absent mature B cells, absent plasma cells, absent pre-B cells, absent spleen germinal center, arrested B cell differentiation, cellular phenotype, decreased B-1a cell number, decreased B-1b cell number, decreased IgG1 level, decreased IgG2a level, decreased IgG2b level, decreased IgG3 level, decreased bone marrow cell number, decreased double-negative T cell number, decreased double-positive T cell number, decreased follicular B cell number, decreased immature B cell number, decreased marginal zone B cell number, decreased mature B cell number, decreased pre-B cell number, decreased transitional stage B cell number, decreased transitional stage T2 B cell number, enlarged lymph nodes, enlarged thymus, hematopoietic system phenotype, immune system phenotype, increased B cell apoptosis, increased B cell proliferation, increased IgG1 level, increased IgG3 level, increased T cell derived lymphoma incidence, increased anti-nuclear antigen antibody level, increased anti-single stranded DNA antibody level, increased autoantibody level, increased chronic lymphocytic leukemia incidence, increased early pro-B cell number, increased late pro-B cell number, increased lymphoma incidence, increased marginal zone B cell number, increased pre-B cell number, increased pro-B cell number, increased susceptibility to autoimmune diabetes, insulitis, no abnormal phenotype detected, premature death, reduced male fertility, small spleen