Citing IMGT/V-QUEST:
Brochet, X., Lefranc, M.-P. and Giudicelli, V. Nucl. Acids Res. 36, W503-508 (2008). PMID: 18503082.
Giudicelli, V., Brochet, X., Lefranc, M.-P. Cold Spring Harb Protoc. 2011 Jun 1;2011(6). pii: pdb.prot5633. doi: 10.1101/pdb.prot5633.
PMID: 21632778 Abstract also in IMGT booklet with generous provision from Cold Spring Harbor (CSH) Protocols (high res) (lower res)

IMGT/V-QUEST program version: 3.7.0 (21 July 2025) - IMGT/V-QUEST reference directory release: 202531-1 (28 July 2025)

Analyse your IG (or antibody) or TR nucleotide sequences

The list of the IMGT/V-QUEST reference directory sets to which your sequences can be compared is available here.

New feature: Customize IMGT/V-QUEST reference directory set see the documentation.

Human sequence sets to test IMGT/V-QUEST are available here

Your selection

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Sequence submission

Display results

Advanced parameters

The details of the reference directory could not be retrieved!

Allele exclusion From the IMGT Reference Directory Set

Selected alleles/All available alleles: 0/0

Allele inclusion to the IMGT Reference Directory Set

Sequences to add must be in FASTA format.
The FASTA header must follow the format:
>IMGT Group-IMGT functionality-additional sequence name
If the "IMGT functionality" is not known the letter U should be indicated.
For example: >IGHV-F-userSequence0001

Nb of accepted D-GENE in IGH (default is 1), TRB (default is 1) or TRD (default is 3) JUNCTION
in 3'V-REGION
in D-REGION
in 5'J-REGION

Advanced functionalities