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Format

FASTAQ

Download XML

Summary

Name
FASTAQ
Identifiers
  • PUID: fmt/2118
  • MIME: None
Format type
Text (Structured)
Description
FASTQ is a text based format for storing biological sequences (nucleotide and amino), but differs from the FASTA format by also storing corresponding quality scores alongside the sequences. Both the sequence letter and quality score are encoded with a single ASCII character.
Note
https://en/wikipedia.org/wiki/FASTQ
File extensions
fastq, fq
Source
Brigham Young University / Brigham Young University

Internal signatures

FASTQ

Note
BOF; Magic Bytes: Searching for repeated sequencing data

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
40{0-65536}(0A|0D|0D0A)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54)(41|43|47|4E|54){0-2048}(0A|0D|0D0A)2B
Endianness
None

Changelog

  • Added in V125

    Release date
    7 September 2026

    FASTAQ: Signature researched and samples provided by Brigham Young University and Digital Research Alliance of Canada - Federated Research Data Repository / Alliance de recherche numérique du Canada - Dépôt fédéré de données de recherche.

    FASTAQ: Full entry added. Submitted by Brigham Young University and Digital Research Alliance of Canada - Federated Research Data Repository / Alliance de recherche numérique du Canada - Dépôt fédéré de données de recherche.