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IMGT reference sequences in FASTA format:

Amino acid sequences with gaps

The FASTA header contains:
IMGT accession number | gene and allele name | species | functionality | exon name | domain name | domain type | alternative splicing (if it is) | partial (if it is) 
>U39456|B7A2*01|Mus musculus|F|EX1|
MAKTIRRLSVAFLTLS
>U39457|B7A2*01|Mus musculus|F|EX2|
DRGPHYKILLPLPHKGWTPGLTHNASLYCASIILK
>U39461|B7A2*01|Mus musculus|F|EX6|[D1]|V-LIKE|
NTMGLAILIFVTVLLIS
>U39462|B7A2*01|Mus musculus|F|EX7|[D1]|V-LIKE|
DAVSVETQAYFNGTAYLPCPFTKAQNIS.LSELVVFWQDQ....QKLVLYEHYL....GT
EKLDSVNAKYLGRTSFDRN..NWTLRLHNVQIKDMGSYDCFIQKKPPTGSIILQQTLTEL
SVI
>U39463|B7A2*01|Mus musculus|F|EX8|[D2]|C-LIKE|
ANFSEPEIKLAQNVTG..NSGINLTCTSKQGHP..KPKKMSFLITNSTNEYGDNMQISQD
NV............TELFSISNSLSLSFPDGVWHMTVVCVLETE........SMKISSKP
LNF
>U39464|B7A2*01|Mus musculus|F|EX9|
TQEFPSPQTYWKEITASVTVALLLVMLLIIVCHKKPNQPS
>U39465|B7A2*01|Mus musculus|F|EX10|
RPSNTASKLERDSNADRETINLKELEPQIASA
>U39466|B7A2*01|Mus musculus|F|EX11|
KPNAE
>U39460|B7A2*01|Mus musculus|F|EX5|
MYVIKTCATC
>U39461|B7A2*01|Mus musculus|F|EX6|[D1]|V-LIKE|
NTMGLAILIFVTVLLIS
>U39462|B7A2*01|Mus musculus|F|EX7|[D1]|V-LIKE|
DAVSVETQAYFNGTAYLPCPFTKAQNIS.LSELVVFWQDQ....QKLVLYEHYL....GT
EKLDSVNAKYLGRTSFDRN..NWTLRLHNVQIKDMGSYDCFIQKKPPTGSIILQQTLTEL
SVI
>U39463|B7A2*01|Mus musculus|F|EX8|[D2]|C-LIKE|
ANFSEPEIKLAQNVTG..NSGINLTCTSKQGHP..KPKKMSFLITNSTNEYGDNMQISQD
NV............TELFSISNSLSLSFPDGVWHMTVVCVLETE........SMKISSKP
LNF
>U39464|B7A2*01|Mus musculus|F|EX9|
TQEFPSPQTYWKEITASVTVALLLVMLLIIVCHKKPNQPS
>U39465|B7A2*01|Mus musculus|F|EX10|
RPSNTASKLERDSNADRETINLKELEPQIASA
>U39466|B7A2*01|Mus musculus|F|EX11|
KPNAE
>U39460|B7A2*01|Mus musculus|F|EX4|
MDPRC
>U39461|B7A2*01|Mus musculus|F|EX6|[D1]|V-LIKE|
NTMGLAILIFVTVLLIS
>U39462|B7A2*01|Mus musculus|F|EX7|[D1]|V-LIKE|
DAVSVETQAYFNGTAYLPCPFTKAQNIS.LSELVVFWQDQ....QKLVLYEHYL....GT
EKLDSVNAKYLGRTSFDRN..NWTLRLHNVQIKDMGSYDCFIQKKPPTGSIILQQTLTEL
SVI
>U39463|B7A2*01|Mus musculus|F|EX8|[D2]|C-LIKE|
ANFSEPEIKLAQNVTG..NSGINLTCTSKQGHP..KPKKMSFLITNSTNEYGDNMQISQD
NV............TELFSISNSLSLSFPDGVWHMTVVCVLETE........SMKISSKP
LNF
>U39464|B7A2*01|Mus musculus|F|EX9|
TQEFPSPQTYWKEITASVTVALLLVMLLIIVCHKKPNQPS
>U39465|B7A2*01|Mus musculus|F|EX10|
RPSNTASKLERDSNADRETINLKELEPQIASA
>U39466|B7A2*01|Mus musculus|F|EX11|
KPNAE
>AK172548|B7A2*02|Mus musculus|F|EX4|
MDPRC
>AK172548|B7A2*02|Mus musculus|F|EX6|[D1]|V-LIKE|
NTMGLAILIFVTVLLIS
>AK172548|B7A2*02|Mus musculus|F|EX7|[D1]|V-LIKE|
DAVSVETQAYFNGTAYLPCPFTKAQNIS.LSELVVFWQDQ....QKLVLYEHYL....GT
EKLDSVNAKYLGRTSFDRN..NWTLRLHNVQIKDMGSYDCFIQKKPPTGSIILQQTLTEL
SVI
>AK172548|B7A2*02|Mus musculus|F|EX8|[D2]|C-LIKE|
ANFSEPEIKLAQNVTG..NSGINLTCTSRQGHP..KPKKMYFLITNSTNEYGDNMQISQD
NV............TELFSISNSLSLSFPDGVWHMTVVCVLETE........SMKISSKP
LNF
>AK172548|B7A2*02|Mus musculus|F|EX9|
TQEFPSPQTYWKEITASVTVALLLVMLLIIVCHKKPNQPS
>AK172548|B7A2*02|Mus musculus|F|EX10|
RPSNTASKLERDSNADRETINLKELEPQIASA
>AK172548|B7A2*02|Mus musculus|F|EX11|
KPNAE
>AK170054|B7A2*03|Mus musculus|F|EX4|
MDPRC
>AK170054|B7A2*03|Mus musculus|F|EX6|[D1]|V-LIKE|
NTMGLAILIFVTVLLIS
>AK170054|B7A2*03|Mus musculus|F|EX7|[D1]|V-LIKE|
DAVSVETQAYFNGTAYLPCPFTKAQNIS.LSELVVFWQDQ....QKLVLYEHYL....GT
EKLDSVNAKYLGRTSFDRN..NWTLRLHNVQIKDMGSYDCFIQKKPPTGSIILQQTLTEL
SVI
>AK170054|B7A2*03|Mus musculus|F|EX8|[D2]|C-LIKE|
ANFSEPEIKLAQNVTG..NSGINLTCTSKQGHP..KPKKMYFLITNSTNEYGDNMQISQD
NV............TELFSISNSLSLSFPDGVWHMTVVCVLETE........SMKISSKP
LNF
>AK170054|B7A2*03|Mus musculus|F|EX9|
TQEFPSPQTYWKEITASVTVALLLVMLLIIVCHKKPNQPS
>AK170054|B7A2*03|Mus musculus|F|EX10|
RPSNTASKLERDSNADRETINLKELEPQIASA
>AK170054|B7A2*03|Mus musculus|F|EX11|
KPNAE
>BC013807|B7A2*04|Mus musculus|F|EX4|
MDPRC
>BC013807|B7A2*04|Mus musculus|F|EX6|[D1]|V-LIKE|
NTMGLAILIFVTVLLIS
>BC013807|B7A2*04|Mus musculus|F|EX7|[D1]|V-LIKE|
DAVSVETQAYFNGTAYLPCPFTKAQNIS.LSELVVFWQDQ....QKLVLYEHYL....GT
EKLDSVNAKYLGRTSFDRN..NWTLRLHNVQIKDMGSYDCFIQKKPPTGSIILQQTLTEL
SVI
>BC013807|B7A2*04|Mus musculus|F|EX8|[D2]|C-LIKE|
ANFSEPEIKLAQNVTG..NSGINLTCTSKQGHP..KPKKMYFLITNSTNEYGDNMQISQD
NV............TELFSISNSLSLSFPDGVWHMTVVCVLETE........SMKISSKP
LNF
>BC013807|B7A2*04|Mus musculus|F|EX9|
TQEFPSPQTYWKEITASVTVALLLVMLLIIVCHKKPNQPS
>BC013807|B7A2*04|Mus musculus|F|EX10|
RPSNTASKLERDSNADRETINLKELEPQIASA
>BC013807|B7A2*04|Mus musculus|F|EX11|
KPNAE