通过Dolphynyn的表位优先设置,对大型抗原空间进行有效编码
Anna-Maria Liebhoff1,2, Thiagarajan Venkataraman2, William R Morgenlander2
1Department of Computer Science, Johns Hopkins University, Baltimore, MD, USA.
bioRxiv : the preprint server for biology
|August 14, 2023
概括
研究人员使用菌体免疫沉积测序 (PhIP-Seq) 分析了对肠道菌体的抗体反应. 一种新的方法Dolphyn显著提高了PhIP-Seq的效率,并揭示了对肠道中的细菌感染病毒的免疫反应.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 生物信息学是一种生物信息学.
背景情况:
- 肠道免疫轴对健康至关重要,但对肠道菌体的抗体反应仍未得到充分研究.
- 菌体免疫沉测序 (PhIP-Seq) 是一种分析菌体对抗体反应的方法.
- 现有的PhIP-Seq方法在库的大小和效率方面存在局限性.
研究的目的:
- 开发一种新的计算方法,Dolphyn,用于增强菌体免疫沉测序 (PhIP-Seq).
- 提高分析抗体对肠道菌体反应的效率和成本效益.
- 为了研究针对人类肠道中的菌体的抗体的景观.
主要方法:
- 开发Dolphyn,一种基于机器学习的工具,用于通过表位接选择和蛋白质组压缩.
- 应用Dolphyn来设计优化的PhIP-Seq库,用于肠道菌素蛋白.
- 使用增强的PhIP-Seq库对健康个体的抗体反应进行分析.
主要成果:
- 在健康人群中,Dolphyn显著增加了肠道菌体库的与抗体结合的比例,从10%增加到31%.
- "海豚"的方法使合成的数量减少了78%,提高了成本效益.
- 该研究确定了针对细菌感染病毒的特定抗体反应,特别是感染大肠杆菌 (Myoviridae) 的病毒.
结论:
- Dolphyn显著提高了PhIP-Seq的效率和成本效益,用于研究肠道菌体.
- 人的免疫系统积极准肠道微生物群中的细菌感染病毒.
- 这种方法促进了对肠-免疫轴和菌体-宿主相互作用的更广泛的研究.
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