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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) 
>AL121986|CD1B*01|Homo sapiens|F|EX1||
atgctgctgctgccatttcaactgttagctgttctctttcctggtggtaacagtgaacat
g
>AL121986|CD1B*01|Homo sapiens|F|EX2|[D1]|G-LIKE-ALPHA1||
ccttccaggggccgacctcctttcatgttatccagacctcgtcctttaccaatagtacct
gggcacaaactcaaggctcaggctggttggatgatttgcagattcatggctgggatagcg
actcaggcactgccatattcctgaagccttggtctaaaggtaactttagtgataaggagg
ttgctgagttagaggagatattccgagtctacatctttggattcgctcgagaagtacaag
actttgccggtgatttccagatgaaat
>AL121986|CD1B*01|Homo sapiens|F|EX3|[D2]|G-LIKE-ALPHA2||
acccctttgagatccagggcatagcaggctgtgagctacattctggaggtgccatagtaa
gcttcctgaggggagctctaggaggattggatttcctgagtgtcaagaatgcttcatgtg
tgccttccccagaaggtggcagcagggcacagaaattctgtgcactaatcatacaatatc
aaggtatcatggaaactgtgagaattctcctctatgaaacctgcccccgatatctcttgg
gcgtcctcaatgcaggaaaagcagatctgcaaagacaag
>AL121986|CD1B*01|Homo sapiens|F|EX4|C-LIKE||
tgaagcctgaggcctggctgtccagtggccccagtcctggacctggccgtctgcagcttg
tgtgccatgtctcaggattctacccaaagcccgtgtgggtgatgtggatgcggggtgagc
aggagcagcagggcactcagctaggggacatcctgcccaatgctaactggacatggtatc
tccgagcaaccctggatgtggcagatggggaggcggctggcctgtcctgtcgggtgaagc
acagcagtttagagggccaggacatcatcctctactgga
>AL121986|CD1B*01|Homo sapiens|F|EX5||
actggagaaaccccacctccattggctcaattgttttggcaataatagtgccttccttgc
tccttttgctatgccttgcattatggtatatgaggcgccg
>AL121986|CD1B*01|Homo sapiens|F|EX6||
gtcatatcagaatatcccatga
>AL121986|CD1B*01|Homo sapiens|F||
atgctgctgctgccatttcaactgttagctgttctctttcctggtggtaacagtgaacat
gccttccaggggccgacctcctttcatgttatccagacctcgtcctttaccaatagtacc
tgggcacaaactcaaggctcaggctggttggatgatttgcagattcatggctgggatagc
gactcaggcactgccatattcctgaagccttggtctaaaggtaactttagtgataaggag
gttgctgagttagaggagatattccgagtctacatctttggattcgctcgagaagtacaa
gactttgccggtgatttccagatgaaatacccctttgagatccagggcatagcaggctgt
gagctacattctggaggtgccatagtaagcttcctgaggggagctctaggaggattggat
ttcctgagtgtcaagaatgcttcatgtgtgccttccccagaaggtggcagcagggcacag
aaattctgtgcactaatcatacaatatcaaggtatcatggaaactgtgagaattctcctc
tatgaaacctgcccccgatatctcttgggcgtcctcaatgcaggaaaagcagatctgcaa
agacaagtgaagcctgaggcctggctgtccagtggccccagtcctggacctggccgtctg
cagcttgtgtgccatgtctcaggattctacccaaagcccgtgtgggtgatgtggatgcgg
ggtgagcaggagcagcagggcactcagctaggggacatcctgcccaatgctaactggaca
tggtatctccgagcaaccctggatgtggcagatggggaggcggctggcctgtcctgtcgg
gtgaagcacagcagtttagagggccaggacatcatcctctactggaactggagaaacccc
acctccattggctcaattgttttggcaataatagtgccttccttgctccttttgctatgc
cttgcattatggtatatgaggcgccggtcatatcagaatatcccatga