Abstract
We have cloned an active gene for an immunoglobulin mu heavy (H) chain, bearing the variable (VH), joining (JH), and constant (C mu) sequences expressed in the IgM-secreting mouse plasmacytoma HPC-76. The mu gene was formed by somatic recombination between a VH gene and one of several JH genes, which are located about 7.7 kilobase pairs from the C mu gene in embryo DNA. The JH-C mu intervening sequence has suffered a deletion of about 2.7 kilobase pairs in HPC-76. Because the delection encompasses sequences required to switch an expressed VH-JH gene from C mu to another CH gene, it may represent a mechanism for "freezing" a lymphocyte clone at the stage of IgM expression. For the second (inactive) C mu allele in HPC-76, the entire joining and switch regions have been deleted; functional inactivation of one allele may thus represent one mechanism by which a lymphocyte clone restricts expression to a single allele (allelic exclusion). Probes generated from the cloned mu gene allowed examination of the JH locus in B, Abelson "pre-B," and T lymphoma cell lines and a myeloid line, all of which cotain RNA species bearing C mu sequences. The B and pre-B lines exhibited recombination within both alleles of the JH locus, suggesting that both alleles may be expressed in some cells. The absence of the JH gene 5' to the recombination sites favors a deletion mechanism for VH-JH joining. Recombination within the JH locus was also detected in two out of four T lymphoma lines, but not in the myeloid line. This indicates that the mechanism by which B cells generate immunoglobulin diversity is operational in some T cells. Lines that synthesize mu RNA without JH rearrangement may have activated the C mu gene directly or have undergone recombination at a more distant locus.
Full text
PDFImages in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- 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., Gough N. M. Nucleotide sequence of immunoglobulin heavy chain joining segments between translocated VH and mu constant regions genes. Proc Natl Acad Sci U S A. 1980 Jun;77(6):3630–3634. doi: 10.1073/pnas.77.6.3630. [DOI] [PMC free article] [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]
- Coleclough C., Cooper D., Perry R. P. Rearrangement of immunoglobulin heavy chain genes during B-lymphocyte development as revealed by studies of mouse plasmacytoma cells. Proc Natl Acad Sci U S A. 1980 Mar;77(3):1422–1426. doi: 10.1073/pnas.77.3.1422. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Cory S., Adams J. M. Deletions are associated with somatic rearrangement of immunoglobulin heavy chain genes. Cell. 1980 Jan;19(1):37–51. doi: 10.1016/0092-8674(80)90386-4. [DOI] [PubMed] [Google Scholar]
- Cory S., Jackson J., Adams J. M. Deletions in the constant region locus can account for switches in immunoglobulin heavy chain expression. Nature. 1980 Jun 12;285(5765):450–456. doi: 10.1038/285450a0. [DOI] [PubMed] [Google Scholar]
- Davis M. M., Calame K., Early P. W., Livant D. L., Joho R., Weissman I. L., Hood L. An immunoglobulin heavy-chain gene is formed by at least two recombinational events. Nature. 1980 Feb 21;283(5749):733–739. doi: 10.1038/283733a0. [DOI] [PubMed] [Google Scholar]
- Dreyer W. J., Bennett J. C. The molecular basis of antibody formation: a paradox. Proc Natl Acad Sci U S A. 1965 Sep;54(3):864–869. doi: 10.1073/pnas.54.3.864. [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]
- Gally J. A., Edelman G. M. The genetic control of immunoglobulin synthesis. Annu Rev Genet. 1972;6:1–46. doi: 10.1146/annurev.ge.06.120172.000245. [DOI] [PubMed] [Google Scholar]
- Gough N. M., Kemp D. J., Tyler B. M., Adams J. M., Cory S. Intervening sequences divide the gene for the constant region of mouse immunoglobulin mu chains into segments, each encoding a domain. Proc Natl Acad Sci U S A. 1980 Jan;77(1):554–558. doi: 10.1073/pnas.77.1.554. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Honjo T., Kataoka T. Organization of immunoglobulin heavy chain genes and allelic deletion model. Proc Natl Acad Sci U S A. 1978 May;75(5):2140–2144. doi: 10.1073/pnas.75.5.2140. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Joho R., Weissman I. L., Early P., Cole J., Hood L. Organization of kappa light chain genes in germ-line and somatic tissue. Proc Natl Acad Sci U S A. 1980 Feb;77(2):1106–1110. doi: 10.1073/pnas.77.2.1106. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Joho R., Weissman I. L. V-J joining of immunoglobulin kappa genes only occurs on one homologous chromosome. Nature. 1980 Mar 13;284(5752):179–181. doi: 10.1038/284179a0. [DOI] [PubMed] [Google Scholar]
- Kataoka T., Kawakami T., Takahashi N., Honjo T. Rearrangement of immunoglobulin gamma 1-chain gene and mechanism for heavy-chain class switch. Proc Natl Acad Sci U S A. 1980 Feb;77(2):919–923. doi: 10.1073/pnas.77.2.919. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kemp D. J., Cory S., Adams J. M. Cloned pairs of variable region genes for immunoglobulin heavy chains isolated from a clone library of the entire mouse genome. Proc Natl Acad Sci U S A. 1979 Sep;76(9):4627–4631. doi: 10.1073/pnas.76.9.4627. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kemp D. J., Harris A. W., Cory S., Adams J. M. Expression of the immunoglobulin C mu gene in mouse T and B lymphoid and myeloid cell lines. Proc Natl Acad Sci U S A. 1980 May;77(5):2876–2880. doi: 10.1073/pnas.77.5.2876. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kemp D. J., Wilson A., Harris A. W., Shortman K. The immunoglobulin mu constant region gene is expressed in mouse thymocytes. Nature. 1980 Jul 10;286(5769):168–170. doi: 10.1038/286168a0. [DOI] [PubMed] [Google Scholar]
- Lenhard-Schuller R., Hohn B., Brack C., Hirama M., Tonegawa S. DNA clones containing mouse immunoglobulin kappa chain genes isolated by in vitro packaging into phage lambda coats. Proc Natl Acad Sci U S A. 1978 Oct;75(10):4709–4713. doi: 10.1073/pnas.75.10.4709. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Levitt D., Cooper M. D. Mouse pre-B cells synthesize and secrete mu heavy chains but not light chains. Cell. 1980 Mar;19(3):617–625. doi: 10.1016/s0092-8674(80)80038-9. [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]
- Perry R. P., Kelley D. E., Coleclough C., Seidman J. G., Leder P., Tonegawa S., Matthyssens G., Weigert M. Transcription of mouse kappa chain genes: implications for allelic exclusion. Proc Natl Acad Sci U S A. 1980 Apr;77(4):1937–1941. doi: 10.1073/pnas.77.4.1937. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rabbitts T. H., Forster A., Dunnick W., Bentley D. L. The role of gene deletion in the immunoglobulin heavy chain switch. Nature. 1980 Jan 24;283(5745):351–356. doi: 10.1038/283351a0. [DOI] [PubMed] [Google Scholar]
- Rabbitts T. H., Matthyssens G., Hamlyn P. H. Contribution of immunoglobulin heavy-chain variable-region genes to antibody diversity. Nature. 1980 Mar 20;284(5753):238–243. doi: 10.1038/284238a0. [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]
- 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]
- Schibler U., Marcu K. B., Perry R. P. The synthesis and processing of the messenger RNAs specifying heavy and light chain immunoglobulins in MPC-11 cells. Cell. 1978 Dec;15(4):1495–1509. doi: 10.1016/0092-8674(78)90072-7. [DOI] [PubMed] [Google Scholar]
- Schilling J., Clevinger B., Davie J. M., Hood L. Amino acid sequence of homogeneous antibodies to dextran and DNA rearrangements in heavy chain V-region gene segments. Nature. 1980 Jan 3;283(5742):35–40. doi: 10.1038/283035a0. [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]
- 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]
- Steinmetz M., Zachau H. G., Mach B. Cloning of immunoglobulin kappa light chain genes from mouse liver and myeloma MOPC 173. Nucleic Acids Res. 1979 Jul 25;6(10):3213–3229. doi: 10.1093/nar/6.10.3213. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wilson R., Miller J., Storb U. Rearrangement of immunoglobulin genes. Biochemistry. 1979 Oct 30;18(22):5013–5021. doi: 10.1021/bi00589a032. [DOI] [PubMed] [Google Scholar]