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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) 
>M13733|CD79A*01|Mus musculus|F|EX1|
atgccagggggtctagaagccctcagagccctgcctctcctcctcttcttgtcatacgcc
tgtttgg
>M13733|CD79A*01|Mus musculus|F|EX2|[D1]|C-LIKE|
gtcccggatgccaggccctgcgggtagaagggggtccaccatccctgacggtgaacttgg
gcgaggaggcccgcctcacctgtgaaaacaatggcaggaaccctaatatcacatggtggt
tcagccttcagtctaacatcacatggcccccagtgccactgggtcctggccagggtacca
caggccagctgttcttccccgaagtaaacaagaacacaggggcttgtactgggtgccaag
tgatagaaaacaacatattaaaacgctcctgtggtacttacctccgcgtgcgca
>M13733|CD79A*01|Mus musculus|F|EX3|
atccagtccctaggcccttcctggacatgggggaaggtaccaagaaccgcatcatcacag
cagaagggatcatcttgctgttctgtgcagtggtgccagggacgctgctgctattcagg
>M13733|CD79A*01|Mus musculus|F|EX4|
aaacggtggcaaaatgagaagtttggggtggacatgccagatgactatgaagatgaaaat
ctctatgag
>M13733|CD79A*01|Mus musculus|F|EX5|
ggcctgaaccttgatgactgttctatgtatgaggacatctccaggggactccagggcacc
taccaggatgtgggcaacctccacattggagatgcccagctggaaaagcca
>CD79A*01|Mus musculus|F|EX1-5|Complete|Splicing A|
atgccagggggtctagaagccctcagagccctgcctctcctcctcttcttgtcatacgcc
tgtttgggtcccggatgccaggccctgcgggtagaagggggtccaccatccctgacggtg
aacttgggcgaggaggcccgcctcacctgtgaaaacaatggcaggaaccctaatatcaca
tggtggttcagccttcagtctaacatcacatggcccccagtgccactgggtcctggccag
ggtaccacaggccagctgttcttccccgaagtaaacaagaacacaggggcttgtactggg
tgccaagtgatagaaaacaacatattaaaacgctcctgtggtacttacctccgcgtgcgc
aatccagtccctaggcccttcctggacatgggggaaggtaccaagaaccgcatcatcaca
gcagaagggatcatcttgctgttctgtgcagtggtgccagggacgctgctgctattcagg
aaacggtggcaaaatgagaagtttggggtggacatgccagatgactatgaagatgaaaat
ctctatgagggcctgaaccttgatgactgttctatgtatgaggacatctccaggggactc
cagggcacctaccaggatgtgggcaacctccacattggagatgcccagctggaaaagcca
tga