V genes of the primary antibody response of C57BL/10 mice to the hapten phenyloxazolone.
The mRNA of ten monoclonal phenyloxazolone (phOx) antibodies originating from the primary (day 7) response of C57BL/10 mice were partially sequenced. The sequences were analyzed together with those of two previously published antibodies. The C57BL response does not have a predominant subset of antibodies like the BALB/c response has (VH-Ox1/V kappa-Ox1 JK5). Probably, C57BL mice lack the VH-Ox1 gene and, as a consequence, their V kappa-Ox1 gene does not have a main role in the anti-phOx response. Five V kappa and six VH genes were found to participate. All five V kappa genes or their "alleles" had previously been found from the BALB/c response to 2-phenyloxazolone (phOx). On the other hand, the two strains use different VH genes for the anti-phOx response. Most C57BL antibodies were coded by VH genes of group 1 which has only minor role in the BALB/c response. The remaining VH genes were from group 7. Our data show that one V kappa segment (e.g. V kappa-Ox1) can code for anti-phOx antibodies with several, even widely different, VH genes. On the other hand, they emphasize the role of certain VH/VL gene combinations for the anti-phOx specificity. Thus, VH genes of group 7 were found to code for anti-phOx antibodies only together with the V kappa 45.1 gene.
D000595:Amino Acid Sequence; D000818:Animals; D000911:Antibodies, Monoclonal / Q000235:genetics*; D001483:Base Sequence; D005803:Genes, Immunoglobulin; D007143:Immunoglobulin Heavy Chains / Q000235:genetics; D007135:Immunoglobulin Variable Region / Q000235:genetics*; D007145:Immunoglobulin kappa-Chains / Q000235:genetics*; D051379:Mice; D008807:Mice, Inbred BALB C / Q000235:genetics / Q000276:immunology; D008810:Mice, Inbred C57BL / Q000235:genetics* / Q000276:immunology; D008969:Molecular Sequence Data; D010080:Oxazoles / Q000276:immunology*; D010081:Oxazolone / Q000031:analogs & derivatives / Q000276:immunology*; D012333:RNA, Messenger / Q000235:genetics
D000911:Antibodies, Monoclonal; D007143:Immunoglobulin Heavy Chains; D007135:Immunoglobulin Variable Region; D007145:Immunoglobulin kappa-Chains; D010080:Oxazoles; D012333:RNA, Messenger; C018361:2-phenyloxazolone; D010081:Oxazolone