AmPEP: Sequence-based prediction of antimicrobial peptides using distribution patterns of amino acid properties and random forest.
AmPEP: Sequence-based prediction of antimicrobial peptides using distribution patterns of amino acid properties and random forest.
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AMPEP:使用氨基酸特性和随机森林的分布模式对基于序列的抗菌肽的预测。
DOI:
10.1038/s41598-018-19752-w
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发表时间:
2018-01-26
影响因子:
4.6
通讯作者:
Siu SWI
中科院分区:
文献类型:
--
作者:
Bhadra P;Yan J;Li J;Fong S;Siu SWI
Antimicrobial peptides (AMPs) are promising candidates in the fight against multidrug-resistant pathogens owing to AMPs’ broad range of activities and low toxicity. Nonetheless, identification of AMPs through wet-lab experiments is still expensive and time consuming. Here, we propose an accurate computational method for AMP prediction by the random forest algorithm. The prediction model is based on the distribution patterns of amino acid properties along the sequence. Using our collection of large and diverse sets of AMP and non-AMP data (3268 and 166791 sequences, respectively), we evaluated 19 random forest classifiers with different positive:negative data ratios by 10-fold cross-validation. Our optimal model, AmPEP with the 1:3 data ratio, showed high accuracy (96%), Matthew’s correlation coefficient (MCC) of 0.9, area under the receiver operating characteristic curve (AUC-ROC) of 0.99, and the Kappa statistic of 0.9. Descriptor analysis of AMP/non-AMP distributions by means of Pearson correlation coefficients revealed that reduced feature sets (from a full-featured set of 105 to a minimal-feature set of 23) can result in comparable performance in all respects except for some reductions in precision. Furthermore, AmPEP outperformed existing methods in terms of accuracy, MCC, and AUC-ROC when tested on benchmark datasets.
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影响因子:
3.3
作者:
Li, Jinyan;Fong, Simon;Fiaidhi, Jinan
通讯作者:
Fiaidhi, Jinan
DOI:
10.1073/pnas.92.19.8700
发表时间:
1995-09-12
影响因子:
11.1
作者:
DUBCHAK, I;MUCHNIK, I;KIM, SH
通讯作者:
KIM, SH
影响因子:
--
作者:
Ng XY;Rosdi BA;Shahrudin S
通讯作者:
Shahrudin S
影响因子:
14.9
作者:
Liu B;Liu F;Wang X;Chen J;Fang L;Chou KC
通讯作者:
Chou KC
影响因子:
4.6
作者:
Meher PK;Sahu TK;Saini V;Rao AR
通讯作者:
Rao AR