Journal
BRIEFINGS IN BIOINFORMATICS
Volume 22, Issue 2, Pages 1065-1075Publisher
OXFORD UNIV PRESS
DOI: 10.1093/bib/bbaa437
Keywords
severe acute respiratory syndrome coronavirus 2; computational subtraction; infectious pathogen detection; graphical user interface (GUI); COVID-19 pandemic
Funding
- ACTREC-Tata Memorial Centre
- Junior Research Fellowship at ACTREC
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The analysis of SARS-CoV-2 genome datasets has led to a better understanding of the virus biology and genetic adaptability. The Infectious Pathogen Detector (IPD) is a computational tool that allows for integrated analysis of diverse genomic datasets, including a customized module for SARS-CoV-2. Through IPD, individual occurrences of pathogens can be quantified and mutation and phylogenetic analysis can be performed, providing valuable insights into SARS-CoV-2 variants and their relationships.
The analysis of the SARS-CoV-2 genome datasets has significantly advanced our understanding of the biology and genomic adaptability of the virus. However, the plurality of advanced sequencing datasets-such as short and long reads-presents a formidable computational challenge to uniformly perform quantitative, variant or phylogenetic analysis, thus limiting its application in public health laboratories engaged in studying epidemic outbreaks. We present a computational tool, Infectious Pathogen Detector (IPD), to perform integrated analysis of diverse genomic datasets, with a customized analytical module for the SARS-CoV-2 virus. The IPD pipeline quantitates individual occurrences of 1060 pathogens and performs mutation and phylogenetic analysis from heterogeneous sequencing datasets. Using IPD, we demonstrate a varying burden (5.055-999655.7 fragments per million) of SARS-CoV-2 transcripts across 1500 short- and long-read sequencing SARS-CoV-2 datasets and identify 4634 SARS-CoV-2 variants (similar to 3.05 variants per sample), including 449 novel variants, across the genome with distinct hotspot mutations in the ORF1ab and S genes along with their phylogenetic relationships establishing the utility of IPD in tracing the genome isolates from the genomic data (as accessed on 11 June 2020). The IPD predicts the occurrence and dynamics of variability among infectious pathogens-with a potential for direct utility in the COVID-19 pandemic and beyond to help automate the sequencing-based pathogen analysis and in responding to public health threats, efficaciously. A graphical user interface (GUI)-enabled desktop application is freely available for download for the academic users at http://www.actrec.gov.in/pi-webpages/AmitDutt/IPD/IPD.html and for web-based processing at http://ipd.actrec.gov.in/ipdweb/ to generate an automated report without any prior computational know-how.
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