Meng Chaolu, Guo Fei, Zou Quan
College of Intelligence and Computing, Tianjin University, Tianjin, China; College of Computer and Information Engineering, Inner Mongolia Agricultural University, Hohhot, China.
College of Intelligence and Computing, Tianjin University, Tianjin, China.
Comput Biol Chem. 2020 Jun 13;87:107304. doi: 10.1016/j.compbiolchem.2020.107304.
Cell wall lytic enzymes, as an important biotechnical tool in drug development, agriculture and the food industry, have attracted more research attention. In this research, the accurate identification of cell wall lytic enzymes is one of the key and fundamental tasks. In this study, in order to eliminate the inefficiency of in vitro experiments, a support vector machine-based cell wall lytic enzyme identification model was constructed using bioinformatics. This machine learning process includes feature extraction, feature selection, model training and optimization. According to the jackknife cross validation test, this model obtained a sensitivity of 0.853, a specificity of 0.977, an MCC of 0.845 and an AUC of 0.915. These benchmark results demonstrate that the proposed model outperforms the state-of-the-art method and that it has powerful cell wall lytic enzyme identification ability. Furthermore, we comprehensively analyzed the selected optimal features and used the proposed model to construct a user friendly web server called the CWLy-SVM to identify cell wall lytic enzymes, which is available at http://server.malab.cn/CWLy-SVM/index.jsp.
细胞壁裂解酶作为药物开发、农业和食品工业中的一种重要生物技术工具,已吸引了更多的研究关注。在本研究中,准确鉴定细胞壁裂解酶是关键且基础的任务之一。在本研究中,为消除体外实验的低效性,利用生物信息学构建了基于支持向量机的细胞壁裂解酶鉴定模型。这个机器学习过程包括特征提取、特征选择、模型训练和优化。根据留一法交叉验证测试,该模型的灵敏度为0.853,特异性为0.977,马修斯相关系数为0.845,曲线下面积为0.915。这些基准结果表明,所提出的模型优于现有方法,并且具有强大的细胞壁裂解酶鉴定能力。此外,我们全面分析了所选的最优特征,并使用所提出的模型构建了一个名为CWLy-SVM的用户友好型网络服务器来鉴定细胞壁裂解酶,该服务器可在http://server.malab.cn/CWLy-SVM/index.jsp上获取。