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IMGT reference sequences in FASTA format:

Nucleotide sequences without 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) 
>L12585|B7A1*01|Mus musculus|F|EX1|[D1]|V-LIKE|
atggcttgcaattgtcagttgatgcaggatacaccactcctcaagtttccatgtccaagg
ctcattcttctctttgtgctgctgattcgtctttcacaagtgtcttcag
>L12586|B7A1*01|Mus musculus|F|EX2|[D1]|V-LIKE|
atgttgatgaacaactgtccaagtcagtgaaagataaggtattgctgccttgccgttaca
actctcctcatgaagatgagtctgaagaccgaatctactggcaaaaacatgacaaagtgg
tgctgtctgtcattgctgggaaactaaaagtgtggcccgagtataagaaccggactttat
atgacaacactacctactctcttatcatcctgggcctggtcctttcagaccggggcacat
acagctgtgtcgttcaaaagaaggaaagaggaacgtatgaagttaaac
>L12587|B7A1*01|Mus musculus|F|EX3|[D2]|C-LIKE|
ctgacttctctacccccaacataactgagtctggaaacccatctgcagacactaaaagga
ttacctgctttgcttccgggggtttcccaaagcctcgcttctcttggttggaaaatggaa
gagaattacctggcatcaatacgacaatttcccaggatcctgaatctgaattgtacacca
ttagtagccaactagatttcaatacgactcgcaaccacaccattaagtgtctcattaaat
atggagatgctcacgtgtcagaggacttcacctgggaaaaac
>L12588|B7A1*01|Mus musculus|F|EX4|
ccccagaagaccctcctgatagcaagaacacacttgtgctctttggggcaggattcggcg
cagtaataacagtcgtcgtcatcgttgtcatcatcaaatgcttctgtaagcaca
>L12589|B7A1*01|Mus musculus|F|EX5|
atcttcaaggaagctgtttcagaagaaatgaggcaagcagagaaacaaacaacagcctta
ccttcgggcctgaagaagcattagctgaacagaccgtcttcctttag
>B7A1*01|Mus musculus|F|EX1-5|Splicing A|complete|
atggcttgcaattgtcagttgatgcaggatacaccactcctcaagtttccatgtccaagg
ctcattcttctctttgtgctgctgattcgtctttcacaagtgtcttcagatgttgatgaa
caactgtccaagtcagtgaaagataaggtattgctgccttgccgttacaactctcctcat
gaagatgagtctgaagaccgaatctactggcaaaaacatgacaaagtggtgctgtctgtc
attgctgggaaactaaaagtgtggcccgagtataagaaccggactttatatgacaacact
acctactctcttatcatcctgggcctggtcctttcagaccggggcacatacagctgtgtc
gttcaaaagaaggaaagaggaacgtatgaagttaaacacttggctttagtaaagttgtcc
atcaaagctgacttctctacccccaacataactgagtctggaaacccatctgcagacact
aaaaggattacctgctttgcttccgggggtttcccaaagcctcgcttctcttggttggaa
aatggaagagaattacctggcatcaatacgacaatttcccaggatcctgaatctgaattg
tacaccattagtagccaactagatttcaatacgactcgcaaccacaccattaagtgtctc
attaaatatggagatgctcacgtgtcagaggacttcacctgggaaaaacccccagaagac
cctcctgatagcaagaacacacttgtgctctttggggcaggattcggcgcagtaataaca
gtcgtcgtcatcgttgtcatcatcaaatgcttctgtaagcacaatcttcaaggaagctgt
ttcagaagaaatgaggcaagcagagaaacaaacaacagccttaccttcgggcctgaagaa
gcattagctgaacagaccgtcttcctttag
>AF065894|B7A1*02|Mus musculus|F|EX1|[D1]|V-LIKE|Splicing B|
atggcttgcaattgtcagttgatgcaggatacaccactcctcaagtttccatgtccaagg
ctcattcttctctttgtgctgctgattcgtctttcacaagtgtcttcag
>AF065894|B7A1*02|Mus musculus|F|EX2|[D1]|V-LIKE|Splicing B|
atgttgatgaacaactgtccaagtcagtgaaagataaggtattgctgccttgccgttaca
actctcctcatgaagatgagtctgaagaccgaatctactggcaaaaacatgacaaagtgg
tgctgtctgtcattgctgggaaactaaaagtgtggcccgagtataagaaccggactttat
atgacaacactacctactctcttatcatcctgggcctggtcctttcagaccggggcacat
acagctgtgtcgttcaaaagaaggaaagaggaacgtatgaagttaaacacttggctttag
taaagttgtccatcaaag
>AF065894|B7A1*02|Mus musculus|F|EX3|[D2]|C-LIKE|Splicing B|
ctgacttctctacccccaacataactgagtctggaaacccatctgcaggcactaaaagga
ttacctgctttgcttccgggggtttcccaaagcctcgcttctcttggttggaaaatggaa
gagaattacctggcatcaatacgacaatttcccaggatcctgaatctgaattgtacacca
ttagtagccaactagatttcaatacgactcgcaaccacaccattaagtgtctcattaaat
atggagatgctcacgtgtcagaggacttcacctgggaaaaac
>AF065894|B7A1*02|Mus musculus|F|EX4|Splicing B|
ccccagaagaccctcctgatagcaagaacacacttgtgctctttggggcaggattcggcg
cagtaataacagtcgtcgtcatcgttgtcatcatcaaatgcttctgtaagcaca
>AF065894|B7A1*02|Mus musculus|F|EX5|Splicing B|
gaagctgtttcagaagaaatgaggcaagcagagaaacaaacaacagccttaccttcgggc
ctgaagaagcattagctgaacagaccgtcttcctttag
>B7A1*02|Mus musculus|F|EX1-5|Splicing B|complete|
atggcttgcaattgtcagttgatgcaggatacaccactcctcaagtttccatgtccaagg
ctcattcttctctttgtgctgctgattcgtctttcacaagtgtcttcagatgttgatgaa
caactgtccaagtcagtgaaagataaggtattgctgccttgccgttacaactctcctcat
gaagatgagtctgaagaccgaatctactggcaaaaacatgacaaagtggtgctgtctgtc
attgctgggaaactaaaagtgtggcccgagtataagaaccggactttatatgacaacact
acctactctcttatcatcctgggcctggtcctttcagaccggggcacatacagctgtgtc
gttcaaaagaaggaaagaggaacgtatgaagttaaacacttggctttagtaaagttgtcc
atcaaagctgacttctctacccccaacataactgagtctggaaacccatctgcaggcact
aaaaggattacctgctttgcttccgggggtttcccaaagcctcgcttctcttggttggaa
aatggaagagaattacctggcatcaatacgacaatttcccaggatcctgaatctgaattg
tacaccattagtagccaactagatttcaatacgactcgcaaccacaccattaagtgtctc
attaaatatggagatgctcacgtgtcagaggacttcacctgggaaaaacccccagaagac
cctcctgatagcaagaacacacttgtgctctttggggcaggattcggcgcagtaataaca
gtcgtcgtcatcgttgtcatcatcaaatgcttctgtaagcacagaagctgtttcagaaga
aatgaggcaagcagagaaacaaacaacagccttaccttcgggcctgaagaagcattagct
gaacagaccgtcttcctttag
>D16220|B7A1*03|Mus musculus|F|EX1|[D1]|V-LIKE|Splicing C|
atggcttgcaattgtcagttgatgcaggatacaccactcctcaagtttccatgtccaagg
ctcattcttctctttgtgctgctgattcgtctttcacaagtgtcttcag
>D16220|B7A1*03|Mus musculus|F|EX2|[D1]|V-LIKE|Splicing C|
atgttgatgaacaactgtccaagtcagtgaaagataaggtattgctgccttgccgttaca
actctcctcatgaagatgagtctgaagaccgaatctactggcaaaaacatgacaaagtgg
tgctgtctgtcattgctgggaaactaaaagtgtggcccgagtataagaaccggactttat
atgacaacactacctactctcttatcatcctgggcctggtcctttcagaccggggcacat
acagctgtgtcgttcaaaagaaggaaagaggaacgtatgaagttaaac
>D16220|B7A1*03|Mus musculus|F|EX4|Splicing C|
ccccagaagaccctcctgatagcaagaacacacttgtgctctttggggcaggattcggcg
cagtaataacagtcgtcgtcatcgttgtcatcatcaaatgcttctgtaagcaca
>D16220|B7A1*03|Mus musculus|F|EX5|Splicing C|
gaagctgtttcagaagaaatgaggcgagcagagaaacaaacaacagccttaccttcgggc
ctgaagaagcattagctgaacagaccgtcttcctttag
>B7A1*03|Mus musculus|F|EX1-2,4-5|Splicing C|complete|
atggcttgcaattgtcagttgatgcaggatacaccactcctcaagtttccatgtccaagg
ctcattcttctctttgtgctgctgattcgtctttcacaagtgtcttcagatgttgatgaa
caactgtccaagtcagtgaaagataaggtattgctgccttgccgttacaactctcctcat
gaagatgagtctgaagaccgaatctactggcaaaaacatgacaaagtggtgctgtctgtc
attgctgggaaactaaaagtgtggcccgagtataagaaccggactttatatgacaacact
acctactctcttatcatcctgggcctggtcctttcagaccggggcacatacagctgtgtc
gttcaaaagaaggaaagaggaacgtatgaagttaaacacttggctttagtaaagttgtcc
atcaaagccccagaagaccctcctgatagcaagaacacacttgtgctctttggggcagga
ttcggcgcagtaataacagtcgtcgtcatcgttgtcatcatcaaatgcttctgtaagcac
agaagctgtttcagaagaaatgaggcgagcagagaaacaaacaacagccttaccttcggg
cctgaagaagcattagctgaacagaccgtcttcctttag