I wonder what is told about the derivatives of the database? I mean mapping those sequences to, say, hg38 genome build and then assigning alleles using available HTS data? ENSEMBL database has a list of V/J segments, yet there are fewer of them than in IMGT if I recall it correctly.
And we definitely need such a database with a strong basis for segments and alleles, without cases when an allele is represented by a single genbank entry that doesn’t even cover full Variable segment. I don’t know whether it is possible to make backward compatibility to IMGT as the nomenclature is copyrighted. But we can basically integrate RNA-seq data and genbank records and re-map V/J segments (this can be done for any species), as well as RACE-based RepSeq samples. This will require some strict guidelines and community effort though, especially of those familiar with de-novo TCR/IG segment allele prediction. So we come back to http://b-t.cr/t/how-best-to-collect-and-share-germline-gene-repertoires/