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Biology subjects

Rahman, C. R.

Publications and source records attributed to Rahman, C. R..

2 recordsLinked to original sources

Benchmarking Recent Computational Tools for DNA-binding Protein Identification

Identification of DNA-binding proteins (DBPs) is a crucial task in genome annotation, as it aids in understanding gene regulation, DNA replication, transcriptional control and various cellular processes. In this paper, we conduct an unbiased benchmarking of eleven state-of-the-art computational tools as well as traditional tools such as ScanProsite, BLAST, and HMMER for identifying DBPs. We highlight the data leakage issue in conventional datasets leading to inflated performance. We introduce new evaluation datasets to support further development. Through a comprehensive evaluation pipeline, we identify potential limitations in models, feature extraction techniques and training methods; and recommend solutions regarding these issues. We show that combining the predictions of the two best computational tools with BLAST based prediction significantly enhances DBP identification capability. We provide this consensus method as user-friendly software. The datasets and software are available at: https://github.com/Rafeed-bot/DNA_BP_Benchmarking. 1. Key PointsO_LIWe designed a comprehensive evaluation pipeline which systematically evaluates eleven recent machine learning (ML) based DBP identification tools. C_LIO_LIWe analyzed the test prediction mistakes made by top-performing tools identifying their potential limitations in terms of model architecture, feature extraction and class balancing. C_LIO_LIWe showed that although the best of these tools do not convincingly outperform BLAST, they still provide substantial value when integrated together with BLAST into a simple majority-voting ensemble. C_LIO_LIWe provide recommendations on more robust development & evaluation and better usability of future tools. C_LIO_LIWe provide the two best-performing ML-based tools, BLAST and the ensemble method as user-friendly software, as well as our proposed datasets, publicly available via GitHub. C_LI

bioinformatics↗

iPromoter-BnCNN: a Novel Branched CNN Based Predictor for Identifying and Classifying Sigma Promoters

MotivationPromoter is a short region of DNA which is responsible for initiating transcription of specific genes. Development of computational tools for automatic identification of promoters is in high demand. According to the difference of functions, promoters can be of different types. Promoters may have both intra and inter class variation and similarity in terms of consensus sequences. Accurate classification of various types of sigma promoters still remains a challenge. ResultsWe present iPromoter-BnCNN for identification and accurate classification of six types of promoters -{sigma} 24,{sigma} 28,{sigma} 32,{sigma} 38,{sigma} 54,{sigma} 70. It is a CNN based classifier which combines local features related to monomer nucleotide sequence, trimer nucleotide sequence, dimer structural properties and trimer structural properties through the use of parallel branching. We conducted experiments on a benchmark dataset and compared with six state-of-the-art tools to show our supremacy on 5-fold cross-validation. Moreover, we tested our classifier on an independent test dataset. AvailabilityOur proposed tool iPromoter-BnCNN web server is freely available at http://103.109.52.8/iPromoter-BnCNN. The runnable source code can be found here. Contactrafeed@cse.uiu.ac.bd Supplementary informationSupplementary data (benchmark dataset, independent test dataset, model files, structural property information, attention mechanism details and web server usage) are available at Bioinformatics. online.

genomics↗