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IMGT reference sequences in FASTA format:

Amino acid 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) 
>M90721|FCGR2A*01|Homo Sapiens|F|EX1
METQMSQNVCPRNLWLLQPLTVLLLL
>M90722|FCGR2A*01|Homo sapiens|F|EX2
SADSQA
>M90723|FCGR2A*01|Homo sapiens|F|EX3|D1|C-LIKE|
.....AAAPPKAVLKLEPPWINVLQ.EDSVTLTCQGARSPE...SDSIQWFHNGNL....
.IPTHTQ..................PSYRFKANN...NDSGEYTCQTGQ...........
.......TSLSDPVHLTVLS
>M90724|FCGR2A*01|Homo sapiens|F|EX4|D2|C-LIKE
..........WLVLQTPHLEFQE...GETIMLRCHSWKDKP...LVKVTFFQNGKSQ...
.KFSHLD..................PTFSIPQANH..SHSGDYHCTGNIG..........
.....YTLFSSKPVTITVQV
>M90725|FCGR2A*01|Homo sapiens|F|EX5
PSMGSSSPMGIIVAVVIATAVAAIVAAVVALIYCRKKRIS
>NT_004668|FCGR2A*01|Homo sapiens|F|EX6
NSTDPVKAAQFE
>M90727|FCGR2A*01|Homo sapiens|F|EX7
PPGRQMIAIRKRQLEETNNDYETADGGYMTLNPRAPTDDDKNIYLTLPPNDHVNSNN
>X62572|FCGR2A*02|Homo Sapiens|F|EX1| partial partial
QMSQNVCPRNLWLLQPLTVLLLL
>X62572|FCGR2A*02|Homo sapiens|F|EX2|
SADSQA
>X62572|FCGR2A*02|Homo sapiens|F|EX3|D1|C-LIKE|
.......APPKAVLKLEPPWINVLQ.EDSVTLTCQGARSPE...SDSIQWFHNGNL....
.IPTHTQ..................PSYRFKANN...NDSGEYTCQTGQ...........
.......TSLSDPVHLTVLS
>X62572|FCGR2A*02|Homo sapiens|F|EX4|D2|C-LIKE|
..........WLVLQTPHLEFQE...GETIMLRCHSWKDKP...LVKVTFFQNGKSQ...
.KFSRLD..................PTFSIPQANH..SHSGDYHCTGNIG..........
.....YTLFSSKPVTITVQV
>X62572|FCGR2A*02|Homo sapiens|F|EX5|
PSMGSSSPMGIIVAVVIATAVAAIVAAVVALIYCRKKRIS
>X62572|FCGR2A*02|Homo sapiens|F|EX6|
NSTDPVKAAQFE
>X62572|FCGR2A*02|Homo sapiens|F|EX7|
PPGRQMIAIRKRQLEETNNDYETADGGYMTLNPRAPTDDDKNIYLTLPPNDHVNSNN
>BC020823|FCGR2A*03|Homo Sapiens|F|EX1|
METQMSQNVCPRNLWLLQPLTVLLLL
>BC020823|FCGR2A*03|Homo sapiens|F|EX2|
SADSQA
>BC020823|FCGR2A*03|Homo sapiens|F|EX3|D1|C-LIKE|
.......PPKAVLKLEPPWINVLQ.EDSVTLTCQGARSPE...SDSIQWFHNGNL.....
IPTHTQ..................PSYRFKANN...NDSGEYTCQTGQ............
......TSLSDPVHLTVLS
>BC020823|FCGR2A*03|Homo sapiens|F|EX4|D2|C-LIKE|
..........WLVLQTPHLEFQE...GETIMLRCHSWKDKP...LVKVTFFQNGKSQ...
.KFSHLD..................PTFSIPQANH..SHSGDYHCTGNIG..........
.....YTLFSSKPVTITVQV
>BC020823|FCGR2A*03|Homo sapiens|F|EX5|
PSMGSSSPMGVIVAVVIATAVAAIVAAVVALIYCRKKRIS
>BC020823|FCGR2A*03|Homo sapiens|F|EX6|
NSTDPVKAAQFE
>BC020823|FCGR2A*03|Homo sapiens|F|EX7|
PPGRQMIAIRKRQLEETNNDYETADGGYMTLNPRAPTDDDKNIYLTLPPNDHVNSNN
>BC019931|FCGR2A*04|Homo Sapiens|F|EX1|
METQMSQNVCPRNLWLLQPLTVLLLL
>BC019931|FCGR2A*04|Homo sapiens|F|EX2|
SADSQA
>BC019931|FCGR2A*04|Homo sapiens|F|EX3|D1|C-LIKE|
.......PPKAVLKLEPPWINVLQ.EDSVTLTCQGARSPE...SDSIQWFHNGNL.....
IPTHTQ..................PSYRFKANN...NDSGEYTCQTGQ............
......TSLSDPVHLTVLS
>BC019931|FCGR2A*04|Homo sapiens|F|EX4|D2|C-LIKE|
..........WLVLQTPHLEFQE...GETIMLRCHSWKDKP...LVKVTFFQNGKSQ...
.KFSRLD..................PTFSIPQANH..SHSGDYHCTGNIG..........
.....YTLFSSKPVTITVQV
>BC019931|FCGR2A*04|Homo sapiens|F|EX5|
PSMGSSSPMGIIVAVVIATAVAAIVAAVVALIYCRKKRIS
>BC019931|FCGR2A*04|Homo sapiens|F|EX6|
NSTDPVKAAQFE
>BC019931|FCGR2A*04|Homo sapiens|F|EX7|
PPGRQMIAIRKRQLEETNNDYETADGGYMTLNPRAPTDDDKNIYLTLPPNDHVNSNN
>M90724|FCGR2A*05|Homo sapiens|F|EX4|
RCHSWKDKP...LVKVTFFQNGKSK....KFSRLD..................PTFSIPQ
ANH..SHSGDYHCTGNIG...............YTLFSSKPVTITVQV