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arXiv 2102.07653q-bio.QM
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用人工神经网络学习方法预测人类甲型流感病毒感染

Prediction of Influenza A virus infections in humans using an Artificial Neural Network learning approach

Charalambos Chrysostomou, Harris Partaourides, Huseyin Seker

摘要:

A型流感病毒可以被认为是最严重的病毒之一,可以感染多个物种,对宿主造成致命的后果。该病毒的血凝素(HA)基因有可能成为抗病毒药物开发的靶点,通过准确鉴定其亚型和可能的靶向宿主来实现。在本文中,为了准确预测A型流感病毒是否具有感染人类宿主的能力,因此开发并测试了仅使用HA基因的方法。预测模型遵循三个主要步骤:(i)使用EIIP氨基酸标度将蛋白质序列解码为数字信号,(ii)通过使用离散傅立叶变换(DFT)分析这些序列并提取基于DFT的特征,(iii)使用基于人工神经网络的预测模型并使用DFT生成的特征。在该分析中,从流感研究数据库中分别收集了人、禽和猪的30724、18236和8157个HA蛋白质序列。给定这组蛋白质,所提出的方法的产率为97.36%。(+- 0.04%),97.26%(+- 0.26%),0.978(+- 0.004),0.963(+- 0.005)和0.945(± 0.005)分别用于训练准确性验证准确率、精确率、召回率和马修斯相关系数(MCC),基于10倍交叉验证。通过使用最大的数据集之一(如果不是最大的话)生成的分类模型产生了有希望的结果,可以导致早期发现这些物种,并有助于制定预防措施,以预防可能的人类感染。

英文摘要:

The Influenza type A virus can be considered as one of the most severe viruses that can infect multiple species with often fatal consequences to the hosts. The Haemagglutinin (HA) gene of the virus has the potential to be a target for antiviral drug development realised through accurate identification of its sub-types and possible the targeted hosts. In this paper, to accurately predict if an Influenza type A virus has the capability to infect human hosts, by using only the HA gene, is therefore developed and tested. The predictive model follows three main steps; (i) decoding the protein sequences into numerical signals using EIIP amino acid scale, (ii) analysing these sequences by using Discrete Fourier Transform (DFT) and extracting DFT-based features, (iii) using a predictive model, based on Artificial Neural Networks and using the features generated by DFT. In this analysis, from the Influenza Research Database, 30724, 18236 and 8157 HA protein sequences were collected for Human, Avian and Swine, respectively. Given this set of the proteins, the proposed method yielded 97.36% (+- 0.04%), 97.26% (+- 0.26%), 0.978 (+- 0.004), 0.963 (+- 0.005) and 0.945 (+- 0.005) for the training accuracy validation accuracy, precision, recall and Mathews Correlation Coefficient (MCC) respectively, based on a 10-fold cross-validation. The classification model generated by using one of the largest dataset, if not the largest, yields promising results that could lead to early detection of such species and help develop precautionary measurements for possible human infections.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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