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IMGT reference sequences in FASTA format:

Nucleotide 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) 
>AF317088|B7H1*01|Mus musculus|F|EX1|
atgaggatatttgctggcattatattcacagcctgctgtcacttgctacggg
>AF317088|B7H1*01|Mus musculus|F|EX2|[D1]|V-LIKE|
cgtttactatcacggctccaaaggacttgtacgtggtggagtatggcagcaacgtcacga
tggagtgcagattccctgtagaacgggagctggac...ctgcttgcgttagtggtgtact
gggaaaaggaagatgagcaagtgattcagtttgtggcaggagaggaggac..........
........cttaagcctcagcacagcaacttcagggggagagcctcgctgccaaaggacc
agcttttgaagggaaatgctgcccttcagatcacagacgtcaagctgcaggacgcaggcg
tttactgctgcataatcagctac...............ggtggtgcggactacaagcgaa
tcacgctgaaagtcaatg
>AF317088|B7H1*01|Mus musculus|F|EX3|[D2]|C-LIKE|
ccccataccgcaaaatcaaccagagaatttccgtggatccagcc.........acttctg
agcatgaactaatatgtcaggccgag...ggttatcca.........gaagctgaggtaa
tctggacaaacagtgaccaccaacccgtgagt......gggaagagaagtgtcaccactt
cccggaca..............................gaggggatgcttctcaatgtga
ccagcagtctgagggtcaacgcc...acagcgaatgatgttttctactgtacgttttgga
gatcacag......ccagggcaaaaccacacagcggagctgatcatcccag
>AF317088|B7H1*01|Mus musculus|F|EX4|
aactgcctgcaacacatcctccacagaacaggactcactgggtgcttctgggatccatcc
tgttgttcctcattgtagtgtccacggtcctcctcttcttgagaaaacaag
>AF317088|B7H1*01|Mus musculus|F|EX5|
tgagaatgctagatgtggagaaatgtggcgttgaagatacaagctcaaaaaaccgaaatg
>AF317088|B7H1*01|Mus musculus|F|EX6|
atacacaattcgaggagacg
>AK154403|B7H1*02|Mus musculus|F|EX1|
atgaggatatttgctggcattatattcacagcctgctgtcacttgctacggg
>AK154403|B7H1*02|Mus musculus|F|EX2|[D1]|V-LIKE|
cgtttactatcacggctccaaaggacttgtacgtggtggagtatggcagcaacgtcacga
tggagtgcagattccctgtagaacgggagctggac...ctgcttgcgttagtggtgtact
gggaaaaggaagatgagcaagtgattcagtttgtggcaggagaggaggac..........
........cttaagcctcagcacagcaacttcagggggagagcctcgctgccaaaggacc
agcttttgaagggaaatgctgcccttcagatcacagacgtcaagctgcaggacgcaggcg
tttactgctgcataatcagctac...............ggtggtgcggactacaagcgaa
tcacgctgaaagtcaatg
>AK154403|B7H1*02|Mus musculus|F|EX3|[D2]|C-LIKE|
ccccataccgcaaaatcaaccagagaatttccgtggatccagcc.........acttctg
agcatgaactaatatgtcaggccgag...ggttatcca.........gaagctgaggtaa
tctggacaaacagtgaccaccaacccgtgagt......gggaagagaagtgtcaccactt
cccggaca..............................gaggggatgcttctcaatgtga
ccagcagtctgagggtcaacgcc...acagcgaatgatgttttctactgcacgttttgga
gatcacag......ccagggcaaaaccacacagcggagctgatcatcccag
>AK154403|B7H1*02|Mus musculus|F|EX4|
aactgcctgcaacacatcctccacagaacaggactcactgggtgcttctgggatccatcc
tgttgttcctcattgtagtgtccacggtcctcctcttcttgagaaaacaag
>AK154403|B7H1*02|Mus musculus|F|EX5|
tgagaatgctagatgtggagaaatgtggcgttgaagatacaagctcaaaaaaccgaaatg
>AK154403|B7H1*02|Mus musculus|F|EX6|
atacacaattcgaggagacg