MCT-ARG:基于多通道变压器模型的抗生素耐药性基因的识别和分类
Limuxuan He1, Huan Li2, Ren Qi3
1Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China.
The Science of the total environment
|November 11, 2025
概括
一个新的框架MCT-ARG通过整合各种蛋白质特征,准确地预测抗生素耐药性基因. 这一进步有助于理解耐药机制和设计新的抗菌剂.
科学领域:
- 计算生物学和生物信息学
- 抗微生物耐药性研究的研究.
- 在基因组学中的机器学习.
背景情况:
- 抗生素耐药性基因 (ARG) 的全球传播是一个主要的公共卫生问题.
- 目前的ARG预测方法缺乏可解释性,无法捕捉非序列特征.
- 现有方法的局限性阻碍了新型抗生素耐药性机制的发现.
研究的目的:
- 开发一个先进的框架,MCT-ARG,用于准确预测抗生素耐药性基因.
- 整合多模式蛋白质数据,包括初级序列,二级结构和RSA,进行全面分析.
- 提高对抗生素耐药性的机制性见解的解释性.
主要方法:
- 提出了一个多通道变压器框架 (MCT-ARG),集成蛋白质初级序列,预测二级结构和相对溶剂可访问性 (RSA).
- 采用多头自我注意力来模拟跨异质数据模式的长距离依赖.
- 采用双约束规范化策略 (缩小和执行局部连续性),将注意力集中在功能相关的残留物上.
主要成果:
- 在15个抗生素类别中实现了卓越的二元分类性能 (AUC-ROC = 99.23%,MCC = 92.74%) 和多类分类准确性 (92.42%).
- 在阶级不平衡下表现出强性 (MCC = 90.97%).
- 解释性分析确定了在进化上保存的和功能关键区域,与已知的催化动机和活性区域保持一致.
结论:
- 在预测准确度,稳定性和ARG预测的可解释性方面,MCT-ARG超越了最先进的模型.
- 该框架为抗性监测和功能注释提供了有价值的见解.
- MCT-ARG促进了新型抗菌剂的合理设计.
更多相关视频
12:32Quantification of Plasmid-Mediated Antibiotic Resistance in an Experimental Evolution Approach
Published on: December 14, 2019
14.6K
05:06Author Spotlight: Advancing Antibiotic Resistance Research Using an Efflux-Deficient Bacterial Strain and a Single-Copy Gene Expression System
Published on: January 5, 2024
1.0K
相关概念视频
Antibiotic Selection
59.3K
Overview
59.3K
Development of Antibiotic Resistance
1.2K
Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
1.2K
Transformation
666
Microbial communities are dynamic environments where cell lysis releases free DNA into the surroundings. Other cells can take up this extracellular DNA through a process known as transformation.When a cell incorporates this foreign DNA into its genome, resulting in genetic modification, the process is known as transformation. Cells capable of this process are termed competent. Competence can be natural, as observed in certain bacteria and archaea, or artificially induced in the...
666
Transduction
1.2K
Among the three main modes of HGT—transformation, conjugation, and transduction—transduction is unique in that it is mediated by bacteriophages, or bacterial viruses.Transduction occurs in two ways. Generalized transduction occurs during the lytic cycle of a bacteriophage infection. In this process, bacteriophages infect bacterial cells, replicate within them, and ultimately cause cell lysis, releasing newly assembled virions. Occasionally, random fragments of the bacterial genome...
1.2K
