AIRBabel immunoglobulin and T-cell receptor allele sequences · leaders · RSSs
CAGGTGCAGCTGGTGCAGTCTGGGGCTGAGGTGAAGAAGCCTGGGTCCTCGGTGAAGGTCTCCTGCAAGGCTTCTGGA TRBV20-1 IGHV1-69 CAGGTCACCTTGAGGGAGTCTGGTCCTGCGCTGGTGAAACCCACACAGACCCTCACACTG IGKV IGLV TRAV ACGT GATTCGAGTC QVQLVQSGAEVKKPGSSVKVSCKAS IGHV3-23*01 TRGV9*01 CAGGTTCAGCTGGTGCAGTCTGGAGCTGAGGTGAAGAAGCCTGGGGCCTCAGTGAAGGTCTCCTGCAAGGCTTCTGGA GGGGCTGAGGTG TRDV2 IGHV4-34 CAGGTGCAGCTACAGCAGTGGGGCGCAGGACTGTTGAAGCCTTCGGAG

One sequence-defined identity. Every recorded name.

V, D, J, C immunoglobulin and T-cell receptor allele sequences. Resolve recorded names from contributing sources to one canonical germline identity across 40 species. Names are labels; the sequence is identity.

14,706V alleles811D alleles2,089J alleles753C alleles 40species 8loci 6,595leaders 8,580RSS 10sources

Public website and REST API · no registration or API key required | open data access | release 2026.09.10 what is in it | 10 sources, licences & citations | tutorial

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Coverage is partial. Citations arrive two ways: a source publishes them with its records, or AIRBabel mines a paper's full text and supplements. Neither is exhaustive; most of what is loaded today comes from curated sets that carry their own references. An empty result therefore means AIRBabel holds no citation linking that paper to an allele, not that the paper describes none. Treat a linked record as evidence within AIRBabel and an empty result as absence of recorded linkage.

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Auto: allele name, UID, or a sequence; picks the best match

Try an example: allele namehuman IGHV1-69*01 server UIDHUMAN-VQLNRZF6P retired nameIGKV1D-17*02 nucleotidepartial sequence amino acidprotein fragment publicationPMID 29163486 cross-speciesmouse IGHV5-17*01 → human

Tutorial: five worked examples → Why names are not identifiers → Guide & API →

Alleles by locus

IGH7,755 IGK2,260 IGL2,516 TRA3,270 TRB1,796 TRG395 TRD427 IGI10

About AIRBabel

AIRBabel aggregates immunoglobulin and T-cell receptor allele reference data from IMGT, OGRDB and curated sets. Records are identified by sequence rather than by name, so a name from any contributing source resolves to one canonical germline identity carrying its aliases, leader, RSS and cross-species neighbours. It complements the primary databases and does not adjudicate nomenclature.

Data: IMGT (CC BY 4.0), OGRDB and published sources, each credited on Sources & citations. What AIRBabel adds → · Download the dataset →