FLAN specifications


Unique identifier OMICS_14142
Alternative name FLu ANnotation
Interface Web user interface
Restrictions to use None
Input data One or multiple nucleotide sequences into the sequence box.
Input format FASTA
Output data It produces a complete list of diagnostic information, which includes predicted virus type, predicted virus segment, predicted virus subtype for the hemagglutinin and neuraminidase segments of influenza A virus, missing start/stop codon, ambiguity sequences and frameshift.
Output format XML, FASTA
Computer skills Basic
Stability Stable
Maintained Yes


  • person_outline Tatiana Tatusova <>

FLAN article

FLAN citation

PMCID: 5641542

[…] have to fluctuate in the same direction as temperature., hemagglutinin gene (ha) sequences were annotated for completeness and functionality using the influenza virus sequence annotation tool (flan)1 (48). h1 clade classification was done using the swine h1 clade classification tool in the influenza research database (ird)2 (49)., for h3 cluster classification, reference strains […]

FLAN institution(s)
National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
FLAN funding source(s)
This research was supported by the Intramural Research Program of the NIH, National Library of Medicine. Funding to pay the Open Access publication charges for this article was provided by the National Institutes of Health.

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