Abstract
The murine hybridoma line B1-8.delta 1 secretes monoclonal IgD lambda 1 antibodies specific for the hapten (4-hydroxy-3-nitrophenyl)acetyl (NP). The variable (V) region of these antibodies is defined by a characteristic pattern of idiotopes. A spontaneous V-region variant (B1-8.V1) with altered idiotope pattern was selected. The structural variation is confined to the V region of the heavy chain. It was shown previously that the variant V region is encoded by a gene that was generated by a crossover between the rearranged VDJ gene of the wild type (B1-8.delta 1) and a neighboring germ-line VH gene. In the present study the nucleotide sequence of coding and flanking regions of the VH gene expressed in variant B1-8.V1 was determined. Wild-type and variant VH genes differ at 15 positions in a region between leader sequence and codon 66. The sequence of the region carrying the substitutions is identical to the sequence of the corresponding region in a neighboring germ-line VH gene. This implies that the variant VH gene was generated by a mechanism of recombination more complicated than single crossover. Gene conversion as the mechanism of the recombination is discussed.
Full text
PDF![4997](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5737/384175/66d7c16b13ec/pnas00642-0129.png)
![4998](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5737/384175/d786ca0f468a/pnas00642-0130.png)
![4999](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5737/384175/470dea8f50d6/pnas00642-0131.png)
![5000](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5737/384175/70b209cdb20d/pnas00642-0132.png)
![5001](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5737/384175/e25017258697/pnas00642-0133.png)
Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Alt F., Rosenberg N., Lewis S., Thomas E., Baltimore D. Organization and reorganization of immunoglobulin genes in A-MULV-transformed cells: rearrangement of heavy but not light chain genes. Cell. 1981 Dec;27(2 Pt 1):381–390. doi: 10.1016/0092-8674(81)90421-9. [DOI] [PubMed] [Google Scholar]
- Baltimore D. Gene conversion: some implications for immunoglobulin genes. Cell. 1981 Jun;24(3):592–594. doi: 10.1016/0092-8674(81)90082-9. [DOI] [PubMed] [Google Scholar]
- Bentley D. L., Rabbitts T. H. Evolution of immunoglobulin V genes: evidence indicating that recently duplicated human V kappa sequences have diverged by gene conversion. Cell. 1983 Jan;32(1):181–189. doi: 10.1016/0092-8674(83)90508-1. [DOI] [PubMed] [Google Scholar]
- Bentley D. L., Rabbitts T. H. Human V kappa immunoglobulin gene number: implications for the origin of antibody diversity. Cell. 1981 Jun;24(3):613–623. doi: 10.1016/0092-8674(81)90088-x. [DOI] [PubMed] [Google Scholar]
- Benton W. D., Davis R. W. Screening lambdagt recombinant clones by hybridization to single plaques in situ. Science. 1977 Apr 8;196(4286):180–182. doi: 10.1126/science.322279. [DOI] [PubMed] [Google Scholar]
- Bernard O., Hozumi N., Tonegawa S. Sequences of mouse immunoglobulin light chain genes before and after somatic changes. Cell. 1978 Dec;15(4):1133–1144. doi: 10.1016/0092-8674(78)90041-7. [DOI] [PubMed] [Google Scholar]
- Bothwell A. L., Paskind M., Reth M., Imanishi-Kari T., Rajewsky K., Baltimore D. Heavy chain variable region contribution to the NPb family of antibodies: somatic mutation evident in a gamma 2a variable region. Cell. 1981 Jun;24(3):625–637. doi: 10.1016/0092-8674(81)90089-1. [DOI] [PubMed] [Google Scholar]
- Brack C., Hirama M., Lenhard-Schuller R., Tonegawa S. A complete immunoglobulin gene is created by somatic recombination. Cell. 1978 Sep;15(1):1–14. doi: 10.1016/0092-8674(78)90078-8. [DOI] [PubMed] [Google Scholar]
- Brüggemann M., Radbruch A., Rajewsky K. Immunoglobulin V region variants in hybridoma cells. I. Isolation of a variant with altered idiotypic and antigen binding specificity. EMBO J. 1982;1(5):629–634. doi: 10.1002/j.1460-2075.1982.tb01219.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Clarke S. H., Claflin J. L., Rudikoff S. Polymorphism in immunoglobulin heavy chains suggesting gene conversion. Proc Natl Acad Sci U S A. 1982 May;79(10):3280–3284. doi: 10.1073/pnas.79.10.3280. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Cohen J. B., Effron K., Rechavi G., Ben-Neriah Y., Zakut R., Givol D. Simple DNA sequences in homologous flanking regions near immunoglobulin VH genes: a role in gene interaction? Nucleic Acids Res. 1982 Jun 11;10(11):3353–3370. doi: 10.1093/nar/10.11.3353. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Crews S., Griffin J., Huang H., Calame K., Hood L. A single VH gene segment encodes the immune response to phosphorylcholine: somatic mutation is correlated with the class of the antibody. Cell. 1981 Jul;25(1):59–66. doi: 10.1016/0092-8674(81)90231-2. [DOI] [PubMed] [Google Scholar]
- Denhardt D. T. A membrane-filter technique for the detection of complementary DNA. Biochem Biophys Res Commun. 1966 Jun 13;23(5):641–646. doi: 10.1016/0006-291x(66)90447-5. [DOI] [PubMed] [Google Scholar]
- Dildrop R., Brüggemann M., Radbruch A., Rajewsky K., Beyreuther K. Immunoglobulin V region variants in hybridoma cells. II. Recombination between V genes. EMBO J. 1982;1(5):635–640. doi: 10.1002/j.1460-2075.1982.tb01220.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Early P., Huang H., Davis M., Calame K., Hood L. An immunoglobulin heavy chain variable region gene is generated from three segments of DNA: VH, D and JH. Cell. 1980 Apr;19(4):981–992. doi: 10.1016/0092-8674(80)90089-6. [DOI] [PubMed] [Google Scholar]
- Egel R. Intergenic conversion and reiterated genes. Nature. 1981 Mar 19;290(5803):191–192. doi: 10.1038/290191a0. [DOI] [PubMed] [Google Scholar]
- Ernst J. F., Stewart J. W., Sherman F. The cyc1-11 mutation in yeast reverts by recombination with a nonallelic gene: composite genes determining the iso-cytochromes c. Proc Natl Acad Sci U S A. 1981 Oct;78(10):6334–6338. doi: 10.1073/pnas.78.10.6334. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Evans G. A., Margulies D. H., Camerini-Otero R. D., Ozato K., Seidman J. G. Structure and expression of a mouse major histocompatibility antigen gene, H-2Ld. Proc Natl Acad Sci U S A. 1982 Mar;79(6):1994–1998. doi: 10.1073/pnas.79.6.1994. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gearhart P. J., Johnson N. D., Douglas R., Hood L. IgG antibodies to phosphorylcholine exhibit more diversity than their IgM counterparts. Nature. 1981 May 7;291(5810):29–34. doi: 10.1038/291029a0. [DOI] [PubMed] [Google Scholar]
- Gough N. M., Bernard O. Sequences of the joining region genes for immunoglobulin heavy chains and their role in generation of antibody diversity. Proc Natl Acad Sci U S A. 1981 Jan;78(1):509–513. doi: 10.1073/pnas.78.1.509. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hohn B., Murray K. Packaging recombinant DNA molecules into bacteriophage particles in vitro. Proc Natl Acad Sci U S A. 1977 Aug;74(8):3259–3263. doi: 10.1073/pnas.74.8.3259. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Jackson J. A., Fink G. R. Gene conversion between duplicated genetic elements in yeast. Nature. 1981 Jul 23;292(5821):306–311. doi: 10.1038/292306a0. [DOI] [PubMed] [Google Scholar]
- Kabat E. A., Wu T. T., Bilofsky H. Evidence supporting somatic assembly of the DNA segments (minigenes), coding for the framework, and complementarity-determining segments of immunoglobulin variable regions. J Exp Med. 1979 Jun 1;149(6):1299–1313. doi: 10.1084/jem.149.6.1299. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kabat E. A., Wu T. T., Bilofsky H. Variable region genes for the immunoglobulin framework are assembled from small segments of DNA--a hypothesis. Proc Natl Acad Sci U S A. 1978 May;75(5):2429–2433. doi: 10.1073/pnas.75.5.2429. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Klar A. J., Fogel S. Activation of mating type genes by transposition in Saccharomyces cerevisiae. Proc Natl Acad Sci U S A. 1979 Sep;76(9):4539–4543. doi: 10.1073/pnas.76.9.4539. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kurosawa Y., Tonegawa S. Organization, structure, and assembly of immunoglobulin heavy chain diversity DNA segments. J Exp Med. 1982 Jan 1;155(1):201–218. doi: 10.1084/jem.155.1.201. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Laskey R. A., Mills A. D. Enhanced autoradiographic detection of 32P and 125I using intensifying screens and hypersensitized film. FEBS Lett. 1977 Oct 15;82(2):314–316. doi: 10.1016/0014-5793(77)80609-1. [DOI] [PubMed] [Google Scholar]
- Loh D. Y., Bothwell A. L., White-Scharf M. E., Imanishi-Kari T., Baltimore D. Molecular basis of a mouse strain-specific anti-hapten response. Cell. 1983 May;33(1):85–93. doi: 10.1016/0092-8674(83)90337-9. [DOI] [PubMed] [Google Scholar]
- Max E. E., Seidman J. G., Leder P. Sequences of five potential recombination sites encoded close to an immunoglobulin kappa constant region gene. Proc Natl Acad Sci U S A. 1979 Jul;76(7):3450–3454. doi: 10.1073/pnas.76.7.3450. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Meselson M. S., Radding C. M. A general model for genetic recombination. Proc Natl Acad Sci U S A. 1975 Jan;72(1):358–361. doi: 10.1073/pnas.72.1.358. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Neuberger M. S., Rajewsky K. Switch from hapten-specific immunoglobulin M to immunoglobulin D secretion in a hybrid mouse cell line. Proc Natl Acad Sci U S A. 1981 Feb;78(2):1138–1142. doi: 10.1073/pnas.78.2.1138. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ollo R., Rougeon F. Gene conversion and polymorphism: generation of mouse immunoglobulin gamma 2a chain alleles by differential gene conversion by gamma 2b chain gene. Cell. 1983 Feb;32(2):515–523. doi: 10.1016/0092-8674(83)90471-3. [DOI] [PubMed] [Google Scholar]
- Pech M., Höchtl J., Schnell H., Zachau H. G. Differences between germ-line and rearranged immunoglobulin V kappa coding sequences suggest a localized mutation mechanism. Nature. 1981 Jun 25;291(5817):668–670. doi: 10.1038/291668a0. [DOI] [PubMed] [Google Scholar]
- Reth M., Hämmerling G. J., Rajewsky K. Analysis of the repertoire of anti-NP antibodies in C57BL/6 mice by cell fusion. I. Characterization of antibody families in the primary and hyperimmune response. Eur J Immunol. 1978 Jun;8(6):393–400. doi: 10.1002/eji.1830080605. [DOI] [PubMed] [Google Scholar]
- Rigby P. W., Dieckmann M., Rhodes C., Berg P. Labeling deoxyribonucleic acid to high specific activity in vitro by nick translation with DNA polymerase I. J Mol Biol. 1977 Jun 15;113(1):237–251. doi: 10.1016/0022-2836(77)90052-3. [DOI] [PubMed] [Google Scholar]
- Rimm D. L., Horness D., Kucera J., Blattner F. R. Construction of coliphage lambda Charon vectors with BamHI cloning sites. Gene. 1980 Dec;12(3-4):301–309. doi: 10.1016/0378-1119(80)90113-4. [DOI] [PubMed] [Google Scholar]
- Sablitzky F., Radbruch A., Rajewsky K. Spontaneous immunoglobulin class switching in myeloma and hybridoma cell lines differs from physiological class switching. Immunol Rev. 1982;67:59–72. doi: 10.1111/j.1600-065x.1982.tb01055.x. [DOI] [PubMed] [Google Scholar]
- Sakano H., Hüppi K., Heinrich G., Tonegawa S. Sequences at the somatic recombination sites of immunoglobulin light-chain genes. Nature. 1979 Jul 26;280(5720):288–294. doi: 10.1038/280288a0. [DOI] [PubMed] [Google Scholar]
- Sanger F., Coulson A. R., Barrell B. G., Smith A. J., Roe B. A. Cloning in single-stranded bacteriophage as an aid to rapid DNA sequencing. J Mol Biol. 1980 Oct 25;143(2):161–178. doi: 10.1016/0022-2836(80)90196-5. [DOI] [PubMed] [Google Scholar]
- Schreier P. H., Bothwell A. L., Mueller-Hill B., Baltimore D. Multiple differences between the nucleic acid sequences of the IgG2aa and IgG2ab alleles of the mouse. Proc Natl Acad Sci U S A. 1981 Jul;78(7):4495–4499. doi: 10.1073/pnas.78.7.4495. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schreier P. H., Cortese R. A fast and simple method for sequencing DNA cloned in the single-stranded bacteriophage M13. J Mol Biol. 1979 Mar 25;129(1):169–172. doi: 10.1016/0022-2836(79)90068-8. [DOI] [PubMed] [Google Scholar]
- Seidman J. G., Leder A., Nau M., Norman B., Leder P. Antibody diversity. Science. 1978 Oct 6;202(4363):11–17. doi: 10.1126/science.99815. [DOI] [PubMed] [Google Scholar]
- Slightom J. L., Blechl A. E., Smithies O. Human fetal G gamma- and A gamma-globin genes: complete nucleotide sequences suggest that DNA can be exchanged between these duplicated genes. Cell. 1980 Oct;21(3):627–638. doi: 10.1016/0092-8674(80)90426-2. [DOI] [PubMed] [Google Scholar]
- Southern E. M. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. doi: 10.1016/s0022-2836(75)80083-0. [DOI] [PubMed] [Google Scholar]
- Steffen D., Weinberg R. A. The integrated genome of murine leukemia virus. Cell. 1978 Nov;15(3):1003–1010. doi: 10.1016/0092-8674(78)90284-2. [DOI] [PubMed] [Google Scholar]
- Szostak J. W., Orr-Weaver T. L., Rothstein R. J., Stahl F. W. The double-strand-break repair model for recombination. Cell. 1983 May;33(1):25–35. doi: 10.1016/0092-8674(83)90331-8. [DOI] [PubMed] [Google Scholar]
- Weigert M., Riblet R. Genetic control of antibody variable regions. Cold Spring Harb Symp Quant Biol. 1977;41(Pt 2):837–846. doi: 10.1101/sqb.1977.041.01.093. [DOI] [PubMed] [Google Scholar]
- Wu T. T., Kabat E. A. Fourteen nucleotides in the second complementarity-determining region of a human heavy-chain variable region gene are identical with a sequence in a human D minigene. Proc Natl Acad Sci U S A. 1982 Aug;79(16):5031–5032. doi: 10.1073/pnas.79.16.5031. [DOI] [PMC free article] [PubMed] [Google Scholar]