Abstract
At least two different class II histocompatibility antigens, I-A and I-E, are encoded by the murine major histocompatibility complex. Both types of class II antigens are composed of polypeptide chains called alpha and beta. Class II antigens display extensive genetic polymorphism, the main part of which resides in the NH2-terminal domains of the A alpha, A beta and E beta chains. Recently it was shown that the mutant gene Abm 12 beta differed from the wild-type gene Ab beta by three nucleotide substitutions, which all occur within a stretch of 14 nucleotides. Multiple substitutions of the type found in the Abm 12 beta gene suggest that the mutant arose by a gene conversion-like event. To examine whether the Eb beta gene may have served as the donor gene in the generation of the Abm 12 beta gene, we have isolated and sequenced a cDNA clone corresponding to the Eb beta gene. Comparisons of the Eb beta, the Ab beta and the Abm 12 beta nucleotide sequences revealed that the Eb beta sequence is identical to that of Abm 12 beta in the positions where the latter differs from the Ab beta sequence. This observation is consistent with the notion that the Abm 12 beta mutant gene arose by a gene conversion-like event involving the Eb beta gene.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Auffray C., Rougeon F. Purification of mouse immunoglobulin heavy-chain messenger RNAs from total myeloma tumor RNA. Eur J Biochem. 1980 Jun;107(2):303–314. doi: 10.1111/j.1432-1033.1980.tb06030.x. [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]
- Benoist C. O., Mathis D. J., Kanter M. R., Williams V. E., 2nd, McDevitt H. O. Regions of allelic hypervariability in the murine A alpha immune response gene. Cell. 1983 Aug;34(1):169–177. doi: 10.1016/0092-8674(83)90147-2. [DOI] [PubMed] [Google Scholar]
- Charron D. J., McDevitt H. O. Analysis of HLA-D region-associated molecules with monoclonal antibody. Proc Natl Acad Sci U S A. 1979 Dec;76(12):6567–6571. doi: 10.1073/pnas.76.12.6567. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Choi E., McIntyre K., Germain R. N., Seidman J. G. Murine I-A beta chain polymorphism: nucleotide sequences of three allelic I-A beta genes. Science. 1983 Jul 15;221(4607):283–286. doi: 10.1126/science.6407114. [DOI] [PubMed] [Google Scholar]
- Cook R. G., Siegelman M. H., Capra J. D., Uhr J. W., Vitetta E. S. Structural studies on the murine Ia alloantigens. IV. NH2-terminal sequence analysis of allelic products of the I-A and I-E/C subregions. J Immunol. 1979 Jun;122(6):2232–2237. [PubMed] [Google Scholar]
- Gustafsson K., Wiman K., Emmoth E., Larhammar D., Böhme J., Hyldig-Nielsen J. J., Ronne H., Peterson P. A., Rask L. Mutations and selection in the generation of class II histocompatibility antigen polymorphism. EMBO J. 1984 Jul;3(7):1655–1661. doi: 10.1002/j.1460-2075.1984.tb02026.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hedrick S. M., Nielsen E. A., Kavaler J., Cohen D. I., Davis M. M. Sequence relationships between putative T-cell receptor polypeptides and immunoglobulins. Nature. 1984 Mar 8;308(5955):153–158. doi: 10.1038/308153a0. [DOI] [PubMed] [Google Scholar]
- Klein J., Figueroa F. Polymorphism of the mouse H-2 loci. Immunol Rev. 1981;60:23–57. doi: 10.1111/j.1600-065x.1981.tb00361.x. [DOI] [PubMed] [Google Scholar]
- Kupinski J. M., Gamble P. A., David C. S., Freed J. H. Biochemical documentation of allelic variation of the I-E antigens of the d, k, p, r, and u haplotypes. Immunogenetics. 1982;16(5):393–405. doi: 10.1007/BF00372099. [DOI] [PubMed] [Google Scholar]
- Land H., Grez M., Hauser H., Lindenmaier W., Schütz G. 5'-Terminal sequences of eucaryotic mRNA can be cloned with high efficiency. Nucleic Acids Res. 1981 May 25;9(10):2251–2266. doi: 10.1093/nar/9.10.2251. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Larhammar D., Gustafsson K., Claesson L., Bill P., Wiman K., Schenning L., Sundelin J., Widmark E., Peterson P. A., Rask L. Alpha chain of HLA-DR transplantation antigens is a member of the same protein superfamily as the immunoglobulins. Cell. 1982 Aug;30(1):153–161. doi: 10.1016/0092-8674(82)90021-6. [DOI] [PubMed] [Google Scholar]
- Larhammar D., Hammerling U., Denaro M., Lund T., Flavell R. A., Rask L., Peterson P. A. Structure of the murine immune response I-A beta locus: sequence of the I-A beta gene and an adjacent beta-chain second domain exon. Cell. 1983 Aug;34(1):179–188. doi: 10.1016/0092-8674(83)90148-4. [DOI] [PubMed] [Google Scholar]
- Maxam A. M., Gilbert W. Sequencing end-labeled DNA with base-specific chemical cleavages. Methods Enzymol. 1980;65(1):499–560. doi: 10.1016/s0076-6879(80)65059-9. [DOI] [PubMed] [Google Scholar]
- McIntyre K. R., Seidman J. G. Nucleotide sequence of mutant I-A beta bm12 gene is evidence for genetic exchange between mouse immune response genes. Nature. 1984 Apr 5;308(5959):551–553. doi: 10.1038/308551a0. [DOI] [PubMed] [Google Scholar]
- Mellor A. L., Weiss E. H., Kress M., Jay G., Flavell R. A. A nonpolymorphic class I gene in the murine major histocompatibility complex. Cell. 1984 Jan;36(1):139–144. doi: 10.1016/0092-8674(84)90082-5. [DOI] [PubMed] [Google Scholar]
- Mengle-Gaw L., McDevitt H. O. Isolation and characterization of a cDNA clone for the murine I-E beta polypeptide chain. Proc Natl Acad Sci U S A. 1983 Dec;80(24):7621–7625. doi: 10.1073/pnas.80.24.7621. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pease L. R., Schulze D. H., Pfaffenbach G. M., Nathenson S. G. Spontaneous H-2 mutants provide evidence that a copy mechanism analogous to gene conversion generates polymorphism in the major histocompatibility complex. Proc Natl Acad Sci U S A. 1983 Jan;80(1):242–246. doi: 10.1073/pnas.80.1.242. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Robinson P. J., Graf L., Sege K. Two allelic forms of mouse beta 2-microglobulin. Proc Natl Acad Sci U S A. 1981 Feb;78(2):1167–1170. doi: 10.1073/pnas.78.2.1167. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Saito H., Maki R. A., Clayton L. K., Tonegawa S. Complete primary structures of the E beta chain and gene of the mouse major histocompatibility complex. Proc Natl Acad Sci U S A. 1983 Sep;80(18):5520–5524. doi: 10.1073/pnas.80.18.5520. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schenning L., Larhammar D., Bill P., Wiman K., Jonsson A. K., Rask L., Peterson P. A. Both alpha and beta chains of HLA-DC class II histocompatibility antigens display extensive polymorphism in their amino-terminal domains. EMBO J. 1984 Feb;3(2):447–452. doi: 10.1002/j.1460-2075.1984.tb01826.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Uhr J. W., Capra J. D., Vitetta E. S., Cook R. G. Organization of the immune response genes. Science. 1979 Oct 19;206(4416):292–297. doi: 10.1126/science.113876. [DOI] [PubMed] [Google Scholar]
- Weiss E. H., Mellor A., Golden L., Fahrner K., Simpson E., Hurst J., Flavell R. A. The structure of a mutant H-2 gene suggests that the generation of polymorphism in H-2 genes may occur by gene conversion-like events. Nature. 1983 Feb 24;301(5902):671–674. doi: 10.1038/301671a0. [DOI] [PubMed] [Google Scholar]
- Williams A. F., Gagnon J. Neuronal cell Thy-1 glycoprotein: homology with immunoglobulin. Science. 1982 May 14;216(4547):696–703. doi: 10.1126/science.6177036. [DOI] [PubMed] [Google Scholar]
- Yanagi Y., Yoshikai Y., Leggett K., Clark S. P., Aleksander I., Mak T. W. A human T cell-specific cDNA clone encodes a protein having extensive homology to immunoglobulin chains. Nature. 1984 Mar 8;308(5955):145–149. doi: 10.1038/308145a0. [DOI] [PubMed] [Google Scholar]