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IMGT reference sequences in FASTA format:

Amino acid 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) 
>NT_004668|FCGR2B*01|Homo sapiens|F|EX1
MGILSFLPVLATESDWADCKSPQPWGHMLLWTAVLFL
>M90729|FCGR2B*01|Homo sapiens|F|EX2
PVAGTP
>M90730|FCGR2B*01|Homo sapiens|F|EX3|D1|C-LIKE|
APPKAVLKLEPQWINVLQEDSVTLTCRGTHSPESDSIQWFHNGNLIPTHTQPSYRFKANN
NDSGEYTCQTGQTSLSDPVHLTVLS
>M90731|FCGR2B*01|Homo sapiens|F|EX4|D2|C-LIKE|
WLVLQTPHLEFQEGETIVLRCHSWKDKPLVKVTFFQNGKSKKFSRSDPNFSIPQANHSHS
GDYHCTGNIGYTLYSSKPVTITVQ
>M90732|FCGR2B*01|Homo sapiens|F|EX5
PSSSPMGIIVAVVTGIAVAAIVAAVVALIYCRKKRIS
>M90733|FCGR2B*01|Homo sapiens|F|EX6
LPGYPECREMGETLPEKP
>M90734|FCGR2B*01|Homo sapiens|F|EX7
NPTNPDEADKVG
>M90735|FCGR2B*01|Homo sapiens|F|EX8
AENTITYSLLMHPDALEEPDDQNRI
>FCGR2B*01|Homo sapiens|F|
MGILSFLPVLATESDWADCKSPQPWGHMLLWTAVLFLAPVAGTPAAPPKAVLKLEPQWIN
VLQEDSVTLTCRGTHSPESDSIQWFHNGNLIPTHTQPSYRFKANNNDSGEYTCQTGQTSL
SDPVHLTVLSEWLVLQTPHLEFQEGETIVLRCHSWKDKPLVKVTFFQNGKSKKFSRSDPN
FSIPQANHSHSGDYHCTGNIGYTLYSSKPVTITVQAPSSSPMGIIVAVVTGIAVAAIVAA
VVALIYCRKKRISALPGYPECREMGETLPEKPANPTNPDEADKVGAENTITYSLLMHPDA
LEEPDDQNRI*