title: Members of novel VH gene families are found in VDJ regions of polyclonally activated B-lymphocytes.
abstract: Four potentially productive and two non-productive VDJ gene segments were isolated from the DNA of mouse B-lymphocytes which had been polyclonally activated by bacterial lipopolysaccharide (LPS). Three VDJ regions exhibit VH genes which stem from two novel VH gene families. The complexity of these families is 5-9 genes. One of the non-productive VDJ regions exhibits a D segment which may have been generated by joining of two DSP2 segments. Both non-productive VDJ regions appear to contain rearranged pseudo VH genes. Three potential somatic mutations distributed over two productive VDJ regions are observed.
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology*; D010582:Bacteriophage lambda / Q000235:genetics; D001483:Base Sequence; D004247:DNA / Q000302:isolation & purification; D004262:DNA Restriction Enzymes; D005796:Genes; D014644:Genetic Variation; D007135:Immunoglobulin Variable Region / Q000235:genetics*; D008099:Liver / Q000276:immunology; D008213:Lymphocyte Activation; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D009693:Nucleic Acid Hybridization
chemical_list: D007135:Immunoglobulin Variable Region; D004247:DNA; D004262:DNA Restriction Enzymes