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Abstract

The MHC class II DQ molecule is composed of an α-chain, encoded by the DQA1 locus and a β-chain, encoded by the DQB1 locus. In contrast to the DR and DP molecules, both the α-chain and the β-chain are polymorphic among individuals, resulting in a vast combinatorial diversity at the antigen level. As is the case for other class II MHC molecules, the DQ antigen is displayed on the surface of antigen-presenting cells.

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References

  • Begovich AB, McClure GR, Suraj VC, Helmuth RC, Fildes N, Bugawan TL, Erlich HA et al. Polymorphism, recombination, and linkage disequilibrium within the HLA class II region. J Immunol 148: 249–258, 1992

    PubMed  CAS  Google Scholar 

  • Bergström T, Gyllensten U. Evolution of Mhc class II polymorphism: the rise and fall of class II gene function in primates. Immunol Rev 143: 13–31, 1995

    Article  PubMed  Google Scholar 

  • Bontrop RE. Nonhuman primate Mhc-DQA and -DQB second exon nucleotide sequences: a compilation. Immunogenetics 39: 81–92, 1994

    Article  PubMed  CAS  Google Scholar 

  • Brown JH, Jardetzky TS, Benirschke K, Andersson JM, Brownhill LC, Saper MA, Samaraoui B, Bjorkman PJ, Wiley DC. A hypothetical model of the foreign antigen binding site of class II histocompatibility molecules. Nature 332: 845–850, 1988

    Article  PubMed  CAS  Google Scholar 

  • Brown JH, Jardetzky TS, Gorga JC, Stern LJ, Urban RG, Strominger JL, Wiley DC. Three-dimensional structure of the human class II histocompability antigen HLA- DRl. Nature 364: 33–39, 1993

    Article  PubMed  CAS  Google Scholar 

  • Erlich HA, Gyllenstern UB. Shared epitopes among HLA class II alleles: gene conversion common ancestry and balancing selection. Immunol Today 12 (11): 411–414, 1991

    Article  PubMed  CAS  Google Scholar 

  • Ewens WI. The sampling theory of selectively neutral alleles. Theor Popul Biol 3: 87–112, 1972

    Article  PubMed  CAS  Google Scholar 

  • Gaur LK, Heise ER, Thurtle PS, Nepom GT. Is DQB2 functional among nonhuman primates? In: Klein J, Klein D (eds) Molecular evolution of the major histocompatibility complex. Springer, Berlin Heidelberg New York, pp 221–230 (NATO ASI series, vol 59), 1991

    Google Scholar 

  • Gaur LK, Heise ER, Thurtle PS, Nepom GT. Conservation of the HLA-DQB2 locus in nonhuman primates. J Immunol 148: 943–948, 1992a

    CAS  Google Scholar 

  • Gaur LK, Heise ER, Thurtle PS, Nepom GT. Conservation of the HLA-DQB2 locus in nonhuman primates (published erratum). J Immunol 149: 2530–2531, 1992b

    CAS  Google Scholar 

  • Gaur LK, Hughes AL, Heise ER, Gutknecht J. Maintenance of DQB1 polymorphisms in primates. Mol Biol Evol 9: 599–609, 1993

    Google Scholar 

  • Gorski J, Mach B. Polymorphism of human Ia antigens: gene conversion between two DRb loci results in a HLA-D/DR specificity. Nature 322: 67–70, 1986

    Article  PubMed  CAS  Google Scholar 

  • Gyllensten U, Erlich HA. Generation of single-stranded DNA by the polymerase chain reaction and its application to direct sequencing of the HLA-DQA locus. Proc Nat] Acad Sci USA 85: 7652–7656, 1988

    Article  CAS  Google Scholar 

  • Gyllensten U, Erlich HA. Ancient roots for polymorphism at the DQA locus of primates. Proc Natl Acad Sci USA 86: 9956–9990, 1989

    Article  Google Scholar 

  • Gyllensten U, Erlich HA. Evolution of HLA class II polymorphism in primates: the DQA locus. Immunol Res 9: 223–233, 1990

    Article  PubMed  CAS  Google Scholar 

  • Gyllensten U, Lashkari D, Erlich HA. Allelic diversification at the class II DQB locus of the mammalian major histocompability complex. Proc Natl Acad Sci USA 87: 1835–1839, 1990

    Article  PubMed  CAS  Google Scholar 

  • Gyllensten U, Bergström T, Josefsson A, Sundvall M, Savage A, Blumer ES, Humberto Giraldo L, Soto LH, Watkins DI. The cotton-top tamarin revisited: Mhc class I polymorphism of wild tamarins and polymorphism and allelic diversity of the class II DQA1 DQB1 and DRB loci. Immunogenetics 40: 167–176, 1994

    Article  PubMed  CAS  Google Scholar 

  • Hedrick P. Evolutionary genetics of the major histocompatibility complex. Am Natural 143: 945, 1994

    Article  Google Scholar 

  • Horn GT, Bugawan TL, Long CM, Erlich HA. Allelic sequence variation of the HLA-DQ loci: relationship to serology aand to insulin-dependent diabetes susceptibility. Proc Nail Acad Sci USA 855:6012–6016

    Google Scholar 

  • Hughes AL, Nei M. Pattern of nucleotide substitution at major histocompatibility complex class I loci reveals overdominant selection. Nature 335: 167–170, 1988

    Article  PubMed  CAS  Google Scholar 

  • Hughes A, Nei M. Nucleotide substitution at major histocompability complex class II loci: evidence for overdominance selection. Proc Natl Acad Sci USA 86: 958–962, 1989

    Article  PubMed  CAS  Google Scholar 

  • Hughes AL, Nei M. Evolutionary relationships of class II major-histocompatibility-complex genes in mammals. Mol Biol Evol 7 (6): 491–514, 1990

    PubMed  CAS  Google Scholar 

  • Kappes D, Strominger JL. Human class II major histocompatibility complex genes and proteins. Annu Rev Biochem 57:991–1028, 1988

    Article  PubMed  CAS  Google Scholar 

  • Kenter M, Anholts J, Ruff G, Otting N, Bontrop RE. Selective inactivation of the primate Mhc-DQA2 locus. In: Klein J, Klein D (eds) Molecular evolution of the major histocompatibility complex. Springer, Berlin Heidelberg New York, pp 213–220 (NATO ASI series, vol 59), 1991

    Chapter  Google Scholar 

  • Kenter M, Otting N, Anholts J, Leunissen J, Jonker M, Bontrop RE. Evolutionary relationships among the primate Mhc-DQA1 and DQA2 alleles. Immunogenetics 36: 71–78, 1992

    Article  PubMed  CAS  Google Scholar 

  • Kimura M. Preponderance of synonymous changes as evidence for the neutral theory of molecular evolution. Nature 267: 275–276, 1977

    Article  PubMed  CAS  Google Scholar 

  • Kimura M. The neutral theory of molecular evolution. Cambridge University Press, Cambridge, 1983

    Book  Google Scholar 

  • Klein J, Figueroa F Evolution of the major histocompatibility complex. CRC Crit Rev Immunol 6: 295–389, 1986

    CAS  Google Scholar 

  • Kumar S, Tamura K, Nei M. MEGA: Molecular Evolutionary Genetics Analysis, version l0. Pennsylvania State University University Park. Comput Appl Biosci 10: 189–191, 1994

    PubMed  CAS  Google Scholar 

  • Kwok WW, Thurtle P, Nepom GT. A genetically controlled pairing anomaly between HLA-DQa and HLA-DQ13 chains. J Immunol 143: 3598–3601, 1989

    PubMed  CAS  Google Scholar 

  • Kwok WW, Kovats S, Thurtle P, Nepom GT. HLA-DQ allelic polymorphisms constrain patters of class II heterodimer formation. J Immunol 150: 2263–2272, 1993

    PubMed  CAS  Google Scholar 

  • Li W-H, Graur D. Fundamentals in molecular evolution. Sinauer, Sunderland, 1991

    Google Scholar 

  • Markow TP, Hendrick PW, Zuerlein K, Danilovs J, Martin J, Vyvial T, Armstrong C. HLA polymorphism in the Havasupai: evidence for balancing selection. Am J Hum Genet 53: 943–952, 1993

    PubMed  CAS  Google Scholar 

  • Marsh SG, Bodmer JG. HLA class II region nucleotide sequences. Tissue Antigens 46: 258280, 1995

    Google Scholar 

  • Maruyama T, Nei M. Genetic variability maintained by mutations and overdominant selection in finite populations. Genetics 98: 441–459, 1981

    PubMed  CAS  Google Scholar 

  • McGinnis MD, Lebo RV, Quinn DL, Simons MJ. Ancient, highly polymorphic human major histocompatibility complex DQA1 intron sequences. Am J Med Genet 52: 438–444, 1994

    Article  PubMed  CAS  Google Scholar 

  • Nei M, Gojobori T. Simple methods for estimating the number of synonymous and non-synonymous nucleotide substitutions. Mol Biol Evol 3: 418–426, 1986

    PubMed  CAS  Google Scholar 

  • Otting N, Kenter M, van Weeren P, Jonker M, Bontrop RE. Mhc-DQB repertoire variation in hominoid and Old World primate species. J Immunol 149: 461–470, 1992

    PubMed  CAS  Google Scholar 

  • Rzhetsky A, Nei M. Unbiased estimates of the number of nucleotide substitutions when substitution rate varies among different sites. J Mol Evol 38: 295–299, 1994

    Article  PubMed  CAS  Google Scholar 

  • Satta Y. How the ratio of nonsynonymous to synonymous pseudogene substitutions can be less than one. Immunogenetics 38: 450–454, 1993

    Article  PubMed  CAS  Google Scholar 

  • Stern LJ, Brown JH, Jardetzky TS, Gorga JC, Urban RG, Strominger JL, Wiley DC. Crystal structure of the human class II MHC protein HLA-DR! complexed with an influenza virus peptide. Nature 368: 215–221, 1994

    Article  PubMed  CAS  Google Scholar 

  • Titus-Trachtenberg EA, Rickards O, DeStefano GF, Erlich HA. Analysis of HLA class II haplotypes in the Cayapa Indians of Ecuador: a novel DRB1 allele reveals evidence for convergent evolution and balancing selection at position 86. Am J Hum Genet 5: 160–167, 1994

    Google Scholar 

  • Titus-Trachtenberg EA, Erlich HA, Rickards O, DeStefano GF, Klitz W. HLA class II linkage disequilibrium and haplotype evolution in the Cayapa Indians of Ecuador. Am J Hum Genet 57: 415–424, 1995

    Google Scholar 

  • Todd JA, Bell JI. HLa-DQβ gene contributes to susceptibility and resistance to insulin-dependent diabetes mellitus. Nature

    Google Scholar 

  • Trowsdale J, Young JAT, Kelly AP, Austin PJ, Carson S, Meunier H, So A, Erlich HA, Spielman R, Bodmer J, Bodmer WE Stucture sequence and polymorphism in the HLA-D region. Immunol Rev 85: 5–43, 1985

    Article  PubMed  CAS  Google Scholar 

  • Watterson GA. The homozygosity test of neutrality. Genetics 88: 405–417, 1978

    PubMed  CAS  Google Scholar 

  • Wu S, Saunders T, Bach F. Polymorphism of human la antigens generated by reciprocal exchange between two DRb loci. Nature 324: 676–679, 1986

    Article  PubMed  CAS  Google Scholar 

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© 1997 Springer-Verlag Berlin Heidelberg

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Gyllensten, U., Bergström, T., Erlich, H.A. (1997). The DQ Loci. In: Blancher, A., Klein, J., Socha, W. (eds) Molecular Biology and Evolution of Blood Group and MHC Antigens in Primates. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-59086-3_16

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  • DOI: https://doi.org/10.1007/978-3-642-59086-3_16

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-63843-5

  • Online ISBN: 978-3-642-59086-3

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