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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) 
>AY346100|B7H4*01|Homo sapiens|F|EX1|
atggcttccctggggcagatcctcttctggag
>AY346100|B7H4*01|Homo sapiens|F|EX2|
cataattagcatcatcattattctggctggagcaattgcactcatcattggctttggtat
ttcag
>AY346100|B7H4*01|Homo sapiens|F|EX3|[D1]|V-LIKE|
ggagacactccatcacagtcactactgtcgcctcagctgggaacattggggaggatggaa
tccagagctgcacttttgaacctgacatcaaactttctgatatcgtgatacaatggctga
aggaaggtgttttaggcttggtccatgagttcaaagaaggcaaagatgagctgtcggagc
aggatgaaatgttcagaggccggacagcagtgtttgctgatcaagtgatagttggcaatg
cctctttgcggctgaaaaacgtgcaactcacagatgctggcacctacaaatgttatatca
tcacttctaaaggcaaggggaatgctaaccttgagtataaaactggag
>AY346100|B7H4*01|Homo sapiens|F|EX4|[D2]|C-LIKE|
ccttcagcatgccggaagtgaatgtggactataatgccagctcagagaccttgcggtgtg
aggctccccgatggttcccccagcccacagtggtctgggcatcccaagttgaccagggag
ccaacttctcggaagtctccaataccagctttgagctgaactctgagaatgtgaccatga
aggttgtgtctgtgctctacaatgttacgatcaacaacacatactcctgtatgattgaaa
atgacattgccaaagcaacaggggatatcaaagtgacag
>AY346100|B7H4*01|Homo sapiens|F|EX5|
aatcggagatcaaaaggcggagtcacctacagctgctaaactcaaaggcttctctgtgtg
tctcttctttctttgccatcagctgggcacttctgcctctcagcccttacctgatgctaa
aa
>B7H4*01|Homo sapiens|F|EX1-5|complete|
atgggccacacacggaggcagggaacatcaccatccaagtgtccatacctcaatttcttt
cagctcttggtgctggctggtctttctcacttctgttcaggtgttatccacgtgaccaag
gaagtgaaagaagtggcaacgctgtcctgtggtcacaatgtttctgttgaagagctggca
caaactcgcatctactggcaaaaggagaagaaaatggtgctgactatgatgtctggggac
atgaatatatggcccgagtacaagaaccggaccatctttgatatcactaataacctctcc
attgtgatcctggctctgcgcccatctgacgagggcacatacgagtgtgttgttctgaag
tatgaaaaagacgctttcaagcgggaacacctggctgaagtgacgttatcagtcaaagct
gacttccctacacctagtatatctgactttgaaattccaacttctaatattagaaggata
atttgctcaacctctggaggttttccagagcctcacctctcctggttggaaaatggagaa
gaattaaatgccatcaacacaacagtttcccaagatcctgaaactgagctctatgctgtt
agcagcaaactggatttcaatatgacaaccaaccacagcttcatgtgtctcatcaagtat
ggacatttaagagtgaatcagaccttcaactggaatacaagctttgccccaagatgcaga
gagagaaggaggaatgagagattgagaagggaaagtgtacgccctgtataa