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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) 
>J04162|FCGR3B*01|Homo sapiens|F|EX1|
atgtggcagctgctcctcccaactgctctgctacttcta
>J04162|FCGR3B*01|Homo sapiens|F|EX2|
gtttcagctggcatgcggact
>J04162|FCGR3B*01|Homo sapiens|F|EX3|D1|C-LIKE|
..................gaagatctcccaaaggctgtggtgttcctggagcctcaatgg
tacagggtgctcgagaaggacagtgtgactctgaagtgccagggagcctactcccctgag
.........gacaattccacacagtggtttcacaatgagaacctc...............
atctcaagccaggcc...............tcgagctacttcattgacgctgccacagtc
gacgacagtggagagtacaggtgccagacaaacctc..................tccacc
ctcagtgacccggtgcagctagaagtccatgtc
>J04162|FCGR3B*01|Homo sapiens|F|EX4|D2|C-LIKE|
...........................ggctggctgttgctccaggcccctcggtgggtg
ttcaaggag......gaagaccctattcacctgaggtgtcacagctggaagaacactgct
.........ctgcataaggtcacatatttacagaatggcaaagacagg............
aagtattttcatcataat............tctgacttccacattccaaaagccacactc
aaagatagcggctcctacttctgcagggggcttgttggg.........agtaaaaatgtg
tcttcagagactgtgaacatcaccatcactcaa
>J04162|FCGR3B*01|Homo sapiens|F|EX5|
ggtttggcagtgtcaaccatctcatcattctctccacctgggtaccaagtctctttctgc
ttggtgatggtactcctttttgcagtggacacaggactatatttctctgtgaagacaaac
atttga