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体内抗二硝基苯基抗体应答过程中独特型(Id-460)的表达。I. 将Id-460表达基因定位到免疫球蛋白重链基因座的可变区以及免疫球蛋白κ轻链基因座的可变区。

Expression of an idiotype (Id-460) during in vivo anti-dinitrophenyl antibody responses. I. Mapping of genes for Id-460 expression to the variable region of immunoglobulin heavy-chain locus and to the variable region of immunoglobulin kappa-light-chain locus.

作者信息

Dzierzak E A, Janeway C A, Rosenstein R W, Gottlieb P D

出版信息

J Exp Med. 1980 Sep 1;152(3):720-9. doi: 10.1084/jem.152.3.720.

Abstract

The genetic contro of the expression of an idiotype (Id-460) associated with the 2,4-dinitrophenyl (DNP)-binding BALB/c myeloma protein MOPC 460 was studied using congenic strains of mice. It was shown that the expression of high levels of Id-460 during secondary in vivo anti-DNP-ovalbumin responses was determined by genes governing immunoglobulin heavy-chain variable and kappa-light chain variable regions (V kappa). Appropriate alleles at both loci were required for the expression of Id-460. Genes in the major histocompatability complex and the X-linked immune deficiency gene found in strain CBA/N did not greatly affect Id-460 expression. The V kappa gene controlling Id-460 expression can be differentiated from Lyt-3, and it is the first instance in which expression of an idiotype subdivides the V kappa genes associated with the Lyt-3a allele. Although it is likely that the V kappa gene(s) involved are structural, the involvememt of a regulatory gene linked to the structural gene can not be excluded.

摘要

利用同基因系小鼠研究了与2,4-二硝基苯基(DNP)结合的BALB/c骨髓瘤蛋白MOPC 460相关的独特型(Id-460)表达的遗传控制。结果表明,在体内二次抗DNP-卵清蛋白反应期间高水平Id-460的表达由控制免疫球蛋白重链可变区和κ轻链可变区(Vκ)的基因决定。两个位点的合适等位基因对于Id-460的表达都是必需的。主要组织相容性复合体中的基因以及在CBA/N品系中发现的X连锁免疫缺陷基因对Id-460表达影响不大。控制Id-460表达的Vκ基因可与Lyt-3区分开来,这是独特型表达将与Lyt-3a等位基因相关的Vκ基因细分的首个实例。虽然所涉及的Vκ基因很可能是结构基因,但不能排除与结构基因连锁的调控基因的参与。

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