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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) 
>NT_004668|FCGR2B*01|Homo sapiens|F|EX1|
atgggaatcctgtcattcttacctgtccttgccactgagagtgactgggctgactgcaag
tccccccagccttggggtcatatgcttctgtggacagctgtgctattcctgg
>M90729|FCGR2B*01|Homo sapiens|F|EX2|
ctcctgttgctgggacacctg
>M90730|FCGR2B*01|Homo sapiens|F|EX3|D1|C-LIKE|
...................cagctcccccaaaggctgtgctgaaactcgagccccagtgg
atcaacgtgctccag...gaggactctgtgactctgacatgccgggggactcacagccct
gag.........agcgactccattcagtggttccacaatgggaatctc............
...attcccacccacacgcag.......................................
...............cccagctacaggttcaaggccaacaac.........aatgacagc
ggggagtacacgtgccagactggccag.................................
.....................accagcctcagcgaccctgtgcatctgactgtgctttct
g
>M90731|FCGR2B*01|Homo sapiens|F|EX4|D2|C-LIKE|
............................agtggctggtgctccagacccctcacctggag
ttccaggag.........ggagaaaccatcgtgctgaggtgccacagctggaaggacaag
cct.........ctggtcaaggtcacattcttccagaatggaaaatccaag.........
...aaattttcccgttcggat.......................................
...............cccaacttctccatcccacaagcaaaccac......agtcacagt
ggtgattaccactgcacaggaaacataggc..............................
...............tacacgctgtactcatccaagcctgtgaccatcactgtccaag
>M90732|FCGR2B*01|Homo sapiens|F|EX5|
ctcccagctcttcaccgatggggatcattgtggctgtggtcactgggattgctgtagcgg
ccattgttgctgctgtagtggccttgatctactgcaggaaaaagcggatttcag
>M90733|FCGR2B*01|Homo sapiens|F|EX6|
ctctcccaggataccctgagtgcagggaaatgggagagaccctccctgagaaaccag
>M90734|FCGR2B*01|Homo sapiens|F|EX7|
ccaatcccactaatcctgatgaggctgacaaagttggg
>M90735|FCGR2B*01|Homo sapiens|F|EX8|
gctgagaacacaatcacctattcacttctcatgcacccggatgctctggaagagcctgat
gaccagaaccgtatttag