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) 
>NC_000083|MH2-AA*01|Mus musculus|F|EX1|[D1]|G-ALPHA1-LIKE
atgccgcgcagcagagctctgattctgggggtcctcgccctgaccaccatgctcagcctc
tgtggaggtgaagacgacattgagg
>NC_000083|MH2-AA*01|Mus musculus|F|EX2|[D1]|G-ALPHA1-LIKE|
ccgaccacgtaggcacctatggtataagtgtatatcagtctcctggagacattggccagt
acacatttgaatttgatggtgatgagttgttctatgtggacttggataagaaggagactg
tctggatgcttcctgagtttggccaattggcaagctttgacccccaaggtggactgcaaa
acatagctgtagtaaaacacaactcgcgagtattgactaagaggtcaaattccaccccag
ctaccaatg
>NC_000083|MH2-AA*01|Mus musculus|F|EX3|[D2]|C-LIKE|
aggctcctcaagcgactgtgttccccaagtcccctgtgctgctgggtcagcccaacaccc
tcatctgctttgtggacaacatcttccctcctgtgatcaacatcacatggctcagaaata
gcaagtcagtcgcagacggtgtttatgagaccagcttcttcgtcaaccgtgactattcct
tccacaagctgtcttatctcaccttcatcccttctgacgatgacatttatgactgcaagg
tggaacactggggcctggaggagccggttctgaaacactggg
>NC_000083|MH2-AA*01|Mus musculus|F|EX4|
aacctgagattccagcccccatgtcagagctgacagagactgtggtctgtgccctggggt
tgtctgtgggccttgtgggcatcgtggtgggcaccatcttcatcattcaaggcctgcgat
caggtggcacctccagacacccagggccttta
>NC_000083|MH2-AA*01|Mus musculus|F|EX1-4|
atgccgcgcagcagagctctgattctgggggtcctcgccctgaccaccatgctcagcctc
tgtggaggtgaagacgacattgaggccgaccacgtaggcacctatggtataagtgtatat
cagtctcctggagacattggccagtacacatttgaatttgatggtgatgagttgttctat
gtggacttggataagaaggagactgtctggatgcttcctgagtttggccaattggcaagc
tttgacccccaaggtggactgcaaaacatagctgtagtaaaacacaactcgcgagtattg
actaagaggtcaaattccaccccagctaccaatgaggctcctcaagcgactgtgttcccc
aagtcccctgtgctgctgggtcagcccaacaccctcatctgctttgtggacaacatcttc
cctcctgtgatcaacatcacatggctcagaaatagcaagtcagtcgcagacggtgtttat
gagaccagcttcttcgtcaaccgtgactattccttccacaagctgtcttatctcaccttc
atcccttctgacgatgacatttatgactgcaaggtggaacactggggcctggaggagccg
gttctgaaacactgggaacctgagattccagcccccatgtcagagctgacagagactgtg
gtctgtgccctggggttgtctgtgggccttgtgggcatcgtggtgggcaccatcttcatc
attcaaggcctgcgatcaggtggcacctccagacacccagggcctttatga