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2FAST2Q: a general-purpose sequence search and counting program for FASTQ files.

Afonso M Bravo1, Athanasios Typas2, Jan-Willem Veening1

  • 1Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland.

Peerj
|October 31, 2022
PubMed
Summary
This summary is machine-generated.

2FAST2Q is a new, user-friendly tool for processing next-generation sequencing FASTQ files. It efficiently extracts and counts sequence features, offering broader applicability beyond CRISPRi-seq analysis.

Keywords:
2FAST2QBarcode-seqBioinformaticsCRISPRiCRISPRi-seqFASTQPythonSequencing analysisTn-seq

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Area of Science:

  • Bioinformatics
  • Computational Biology
  • Genomics

Background:

  • Next-generation sequencing (NGS) necessitates efficient raw data processing tools.
  • Existing tools may lack user-friendliness or versatility for diverse applications.

Purpose of the Study:

  • To introduce and elaborate on the functionality of 2FAST2Q, a versatile standalone program for FASTQ file analysis.
  • To demonstrate the broader applicability of 2FAST2Q beyond its initial description in a CRISPRi-seq pipeline.

Main Methods:

  • 2FAST2Q is a Python-based program with standalone executables for Windows, macOS, and Linux.
  • It features an intuitive user interface and an advanced custom sequence searching algorithm.
  • The program supports Hamming distance alignments, Phred score filtering, custom read trimming, and sequence searching.

Main Results:

  • 2FAST2Q accurately recapitulates published read counts from CRISPRi datasets for *Escherichia coli* and *Mycobacterium tuberculosis*.
  • The tool efficiently handles feature extraction from raw reads for various experimental setups.
  • It processes CRISPRi-seq and random-barcode sequencing data rapidly on standard laptops and extracts *de novo* features.

Conclusions:

  • 2FAST2Q is a faster, easier-to-use alternative for FASTQ file processing compared to existing tools.
  • Its capabilities extend to various sequencing applications, including microbiology and amplicon sequencing.
  • The program is readily available as an executable and a Python module for broad accessibility.