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Format

GenBank Flat File

Summary

Name
GenBank Flat File
Identifiers
PUID: fmt/1770
Format type
Text (Structured)
Description
The GenBank format was developed by the U.S. National Center for Biotechnology Information (NCBI). The format is a standardised way of recording DNA and protein sequencing information accompanied with other data, such as Journal references, keywords, definitions and other information, so that it can be easily read by humans and machines. The NCBI Genbank database https://www.ncbi.nlm.nih.gov/genbank/ is a repository of publicly available DNA sequences in the Genbank format, and takes in submissions of Genbank files from all over the world.
Note
Specification: https://www.ncbi.nlm.nih.gov/genbank/samplerecord/
File extensions
gb, gbk
Source
Bodleian Library, University of Oxford / Bodleian Library, University of Oxford
Developed by
National Center for Biotechnology Information
Supported by
National Center for Biotechnology Information

Internal signatures

GenBank Flat File

Note
BOF Absolute from beginning of file, magic bytes: LOCUS Variable: ORIGIN EOF offset 0-1, magic bytes: //.

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
4C4F435553
Endianness
None
Min Frag Length
Variable
Offset
None
Max offset
None
Byte Sequence
4F524947494E
Endianness
None
Min Frag Length
Absolute from EOF
Offset
0
Max offset
1
Byte Sequence
2F2F(0A|0D)
Endianness
None

Changelog

  • Added in V109

    Release date
    1 November 2022

    GenBank Flat File: Signature researched and samples provided by Bodleian Libraries.

    GenBank Flat File: Full entry added. Submitted by Bodleian Libraries.