同人标签组装测试用于全长抗体测序
Nuomin Li1,2, Xu Wang2, Hao Wang2
1Department of Comprehensive Basic Experiment, The Ninth Medical Center of Chinese PLA General Hospital, Beijing 100101, China.
Analytical chemistry
|July 28, 2025
概括
研究人员开发了Homo-Tag-Assembler,这是一种用于准确测序抗体的新型软件工具. 这种方法克服了确定抗体序列的挑战,实现了轻链和重链的高精度.
科学领域:
- 免疫学 免疫学 免疫学
- 生物信息学是一种生物信息学.
- 蛋白质测序是指蛋白质的测序.
背景情况:
- 抗体测序对于理解免疫反应和开发治疗方法至关重要.
- 现有的方法面临挑战,包括不完整的序列覆盖率和异基残留物 (如异氨酸和氨酸) 的模糊性.
研究的目的:
- 开发一种用于准确的全长抗体可变区域序列重建的计算工具.
- 为了解决当前抗体测序技术的局限性.
主要方法:
- 使用同类标签模糊字符串匹配算法的Homo-Tag-Assembler软件的开发.
- 在抗体变量区域中分析氨基酸分布,以创建特定的概率表.
- 该工具的应用用于*de novo*测序,相似性评估,以及轻/重链和异黄素/白素的差异化.
主要成果:
- 实现了对Herceptin抗体的全长序列覆盖.
- 证明了高精度:轻链的99.1%,重链变量区域的100%.
- 成功分化异基残留物 (I/L) 并分配来纠正链.
结论:
- 人类标签组装器有效地重建了全长的抗体序列.
- 该方法利用保存的区域特征和同质信息来进行强大而准确的测序.
- 这种工具在抗体表征和发现方面取得了重大进展.
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