High-throughput sequencing of the zebrafish antibody repertoire.

High-throughput sequencing of the zebrafish antibody repertoire.
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DOI:
10.1126/science.1170020
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发表时间:
2009-05-08
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Quake SR
Quake SR
中科院分区:
其他
文献类型:
--
作者:
Weinstein JA;Jiang N;White RA 3rd;Fisher DS;Quake SR

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尽管在理解免疫系统的性质方面取得了巨大进展,但生物体抗体库的全部多样性仍是未知的。我们使用来自14条斑马鱼的抗体重链可变区的高通量测序来分析VDJ使用和抗体序列。斑马鱼被发现使用50%至86%的所有可能的VDJ组合,并共享一个类似的频率分布,与个体之间的VDJ模式的一些相关性。斑马鱼抗体保留了几千条独特的重链,这些重链也表现出共享的频率分布。我们发现了趋同的证据,即不同的个体产生相同的抗体。这种方法提供了对表达的抗体库的广度和在个体生物体水平上的免疫多样性的洞察。
Despite tremendous progress in understanding the nature of the immune system, the full diversity of an organism’s antibody repertoire is unknown. We used high-throughput sequencing of the variable domain of the antibody heavy chain from 14 zebrafish to analyze VDJ usage and antibody sequence. Zebrafish were found to use between 50% and 86% of all possible VDJ combinations and shared a similar frequency distribution, with some correlation of VDJ patterns between individuals. Zebrafish antibodies retained a few thousand unique heavy chains that also exhibited a shared frequency distribution. We found evidence of convergence, in which different individuals made the same antibody. This approach provides insight into the breadth of the expressed antibody repertoire and immunological diversity at the level of an individual organism.
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