A highly informative probe for two polymorphic Vh gene regions that contain one or more autoantibody-associated Vh genes.

A highly informative probe for two polymorphic Vh gene regions that contain one or more autoantibody-associated Vh genes.
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一种信息丰富的探针,用于检测两个多态性 Vh 基因区域,其中包含一个或多个自身抗体相关 Vh 基因。

DOI:
10.1172/jci114218
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发表时间:
1989
期刊:
The Journal of clinical investigation
影响因子:
--
通讯作者:
Carson,DA
Carson,DA
中科院分区:
--
文献类型:
--
作者:
Chen,PP;Siminovitch,KA;Olsen,NJ;Erger,RA;Carson,DA

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由于缺乏合适的多态探针,确定特定免疫球蛋白可变区(V)基因在人类自身免疫反应中的作用的努力一直受到阻碍。最近我们分离到一个重链V(VH)基因,命名为Humhv3005,它与1.9ⅢVH基因有99%的同源性,并能编码抗DNA抗体。为了研究这两个基因之间的关系,用分离的Humhv3005克隆的不同DNA片段来探测人类基因组DNA的Southern blotts。发现1.6kb的Eco RI片段(命名为hv3005/E1.6)仅与Eco RI酶切的DNA中的一条带杂交,而在Bam HI酶切的DNA中与两条主带杂交。重要的是,后两条带的大小分别与分离的hv3005克隆和分离的1.9III克隆的Bam HI片段大小没有区别。用hv3005/E1.6探针进行的人群和家系研究发现,这两个特征条带有五种不同的杂交模式,这定义了两个人类免疫球蛋白VH基因座的九种可能的基因型。总之,这些数据表明,hv3005/E1.6是一个针对自身抗体相关的VH基因(S)的高度信息量的探针,应该被证明在阐明Ig VH基因在自身免疫性疾病中的作用方面是有用的。
Efforts to determine the role of specific Ig variable region (V) genes in human autoimmune responses have been hampered by the lack of suitably polymorphic probes. Recently we isolated a heavy chain V (Vh) gene, designated Humhv3005, that is 99% homologous to the 1.9III Vh gene and can encode an anti-DNA antibody. To study the relation between these two genes, different DNA fragments from the isolated Humhv3005 clone were used to probe Southern blots of human genomic DNA. A 1.6-kb Eco RI fragment (designated hv3005/E1.6) was found to hybridize with only one band in Eco RI-digested DNA, and with two major bands in Bam HI-digested DNA. Importantly, the sizes of the latter two bands were indistinguishable from the corresponding Bam HI fragment sizes of the isolated hv3005 clone and the isolated 1.9III clone, respectively. Population and family studies with the hv3005/E1.6 probe revealed five different hybridization patterns of these two characteristic bands, which defined nine possible genotypes for two human Ig Vh gene loci. Together the data demonstrate that hv3005/E1.6 is a highly informative probe for an autoantibody-associated Vh gene(s), and should prove useful in elucidating the role of Ig Vh genes in autoimmune diseases.Images
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发表时间: 1988
期刊: Annales de l'Institut Pasteur. Immunology
影响因子: --
作者:
Makar,R;Sanz,I;Thomas,JW;Capra,JD
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DOI: --
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DOI: --
发表时间: 1986
影响因子: 4.6
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DOI: --
发表时间: 1988
影响因子: 9.8
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影响因子: 11.1
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