A natural autoantibody is encoded by germline heavy and lambda light chain variable region genes without somatic mutation.

A natural autoantibody is encoded by germline heavy and lambda light chain variable region genes without somatic mutation.
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天然自身抗体由种系重链和 lambda 轻链可变区基因编码,无体细胞突变。

DOI:
10.1172/jci114347
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发表时间:
1989
期刊:
The Journal of clinical investigation
影响因子:
--
通讯作者:
Chen,PP
Chen,PP
中科院分区:
--
文献类型:
--
作者:
Siminovitch,KA;Misener,V;Kwong,PC;Song,QL;Chen,PP

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虽然已发现未突变的种系可变区 (V) 基因编码各种人类自身抗体的重链或轻链,但尚未记录给定自身抗体的两条链对种系 V 基因的使用。最近,我们报道 Kim4.6 抗 DNA 抗体的重链 V 基因(指定为 Humha346)与种系 VH 基因 1.9III 相同。为了研究这种自身抗体是否完全由种系编码,我们搜索了 Kim4.6 V lambda 片段(指定为 Humla146)的种系对应物,并分离了一个 V lambda I 基因,指定为 Humlv117,该基因与 Humla146 相同。连同 Kim4.6/Humha346 和 1.9III VH 基因的序列同一性,当前数据提供了第一个直接证据,证明自身抗体可以完全由种系 V 基因编码,而无需任何体细胞改变。此外,Humlv117是第一个分离的V lambda I种系基因,与两种淋巴瘤中表达的V lambda基因高度同源。因此,该V lambda I基因应该为研究人类V lambda基因库的表达提供有用的工具,特别是关于自身免疫和/或淋巴增殖性疾病。
While nonmutated germline variable region (V) genes have been found to encode heavy or light chains of various human autoantibodies, the use of germline V genes by both chains of a given autoantibody has not been documented. Recently, we reported that the heavy chain V gene (designated Humha346) of the Kim4.6 anti-DNA antibody is identical to a germline VH gene, 1.9III. To investigate whether this autoantibody was entirely germline encoded, we searched for the germline counterpart to the Kim4.6 V lambda segment (designated Humla146) and isolated a V lambda I gene designated Humlv117, which was identical to Humla146. Together with the sequence identity of the Kim4.6/Humha346 and 1.9III VH genes, the current data provide the first direct proof that an autoantibody can be encoded entirely by germline V genes without any somatic change. In addition, Humlv117 is the first V lambda I germline gene that has been isolated, and is highly homologous to the V lambda genes expressed in two lymphomas. Thus, this V lambda I gene should provide a useful tool for investigating the expression of the human V lambda gene repertoire, particularly with regard to autoimmune and/or lymphoproliferative diseases.
DOI: 10.1084/jem.167.3.840
发表时间: 1988-03-01
期刊: The Journal of experimental medicine
影响因子: --
作者:
Kipps TJ;Tomhave E;Chen PP;Carson DA
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DOI: --
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影响因子: 4.4
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DOI: --
发表时间: 1988
期刊: Annales de l'Institut Pasteur. Immunology
影响因子: --
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A. Davidson;A. Livneh;A. Manheimer;R. Shefner;J. Katz;K. Sewell;B. Diamond
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DOI: --
发表时间: 1983
期刊: Journal of Biochemistry (Tokyo)
影响因子: --
作者:
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通讯作者: A. Shimizu
DOI: --
发表时间: 1989
影响因子: 4.4
作者:
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通讯作者: Katherine A. Siminovitch