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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) 
>M91645|FCGR1A*01|Homo sapiens|F|EX1|
MWFLTTLLLW
>M91645|FCGR1A*01|Homo sapiens|F|EX2|
PVDGQV
>M91645|FCGR1A*01|Homo sapiens|F|EX3|[D1]|C-LIKE|
........TTKAVITLQPPWVSVFQ.EETVTLHCEVLHLPG...SSSTQWFLNGTA....
.TQTST...................PSYRITSASV..NDSGEYRCQRGL...........
.......SGRSDPIQLEIHR
>M91645|FCGR1A*01|Homo sapiens|F|EX4|[D2]|C-LIKE|
..........WLLLQVSSRVFTE...GEPLALRCHAWKDKL...VYNVLYYRNGKAF...
.KFFHWN..................SNLTILKTNI..SHNGTYHCSGMGK..........
......HRYTSAGISVTVK
>M91645|FCGR1A*01|Homo sapiens|F|EX5|[D3]|C-LIKE|
...LFPAPVLNASVTSPLLEG......NLVTLSCETKLLLQ..RPGLQLYFSFYMGSKT.
.LRGRNTSSE.............YQILTARRED......SGLYWCEAATEDGNVLKRS.P
ELELQVL
>M91645|FCGR1A*01|Homo sapiens|F|EX6|[D4]|
LQLPTPVWFHVLFYLAVGIMFLVNTVLWVTIRKELKRKKKWDLEISLDSGHEKKVISSLQ
EDRHLEEELKCQEQKEEQLQEGVHRKEPQGAT*
>X14355|FCGR1A*01|Homo sapiens|F|EX1|splicingB
MWFLTTLLLW
>X14355|FCGR1A*01|Homo sapiens|F|EX2|splicingB
PVDGQV
>X14355|FCGR1A*01|Homo sapiens|F|[D1]|C-LIKE|splicingB
........TTKAVITLQPPWVSVFQ.EETVTLHCEVLHLPG...SSSTQWFLNGTA....
.TQTST...................PSYRITSASV..NDSGEYRCQRGL...........
.......SGRSDPIQLEIHR
>X14355|FCGR1A*01|Homo sapiens|F|[D2]|C-LIKE|splicingB
..........WLLLQVSSRVFTE...GEPLALRCHAWKDKL...VYNVLYYRNGKAF...
.KFFHWN..................SNLTILKTNI..SHNGTYHCSGMGK..........
......HRYTSAGISVTVK
>X14355|FCGR1A*01|Homo sapiens|F|[D3]|C-LIKE|splicingB
...LFPAPVLNASVTSPLLEG......NLVTLSCETKLLLQ..RPGLQLYFSFYMGSKT.
.LRGRNTSSE.............YQILTARRED......SGLYWCEAATEDGNVLKRS.P
ELELQVL
>X14355|FCGR1A*01|Homo sapiens|F|EX6|[D4]|splicingB
LQLPTPVWFHVLFYLAVGIMFLVNTVLWVTIRKELKRKKKWDLEISLDSGGQALEAPTQG
CA*
>X14356|FCGR1A*02|Homo sapiens|F|EX1|
MWFLTTLLLW
>X14356|FCGR1A*02|Homo sapiens|F|EX2|
PVDGQV
>X14356|FCGR1A*02|Homo sapiens|F|EX3|[D1]|C-LIKE|
........TTKAVISLQPPWVSVFQ.EETVTLHCEVLHLPG...SSSTQWFLNGTA....
.TQTST...................PSYRITSASV..NDSGEYRCQRGL...........
.......SGRSDPIQLEIHR
>X14356|FCGR1A*02|Homo sapiens|F|EX4|[D2]|C-LIKE|
..........WLLLQVSSRVFTE...GEPLALRCHAWKDKL...VYNVLYYRNGKAF...
.KFFHWN..................SNLTILKTNI..SHNGTYHCSGMGK..........
......HRYTSAGISVTVK
>X14356|FCGR1A*02|Homo sapiens|F|EX5|[D3]|C-LIKE|
...LFPAPVLNASVTSPLLEG......NLVTLSCETKLLLQ..RPGLQLYFSFYMGSKT.
.LRGRNTSSE.............YQILTARRED......SGLYWCEAATEDGNVLKRS.P
ELELQVL
>X14356|FCGR1A*02|Homo sapiens|F|EX6|[D4]|
LQLPTPVWFHVLFYLAVGIMFLVNTVLWVTIRKELKRKKKWDLEISLDSGHEKKVTSSLQ
EDRHLEEELKCQEQKEEQLQEGVHRKEPQGAT*
>X14356VAR1|FCGR1A*03|Homo sapiens|F|EX1|
MWFLTTLLLW
>X14356VAR1|FCGR1A*03|Homo sapiens|F|EX2|
PVDGQV
>X14356VAR1|FCGR1A*03|Homo sapiens|F|EX3|[D1]|C-LIKE|
........TTKAVISLQPPWVSVFQ.EETVTLHCEVLHLPG...SSSTQWFLVGTA....
.TQTST...................PSYRITSASV..NDSGEYRCQRGL...........
.......SGRSDPIQLEIHR
>X14356VAR1|FCGR1A*03|Homo sapiens|F|EX4|[D2]|C-LIKE|
..........WLLLQVSSRVFTE...GEPLALRCHAWKDKL...VYNVLYYRNGKAF...
.KFFHWN..................SNLTILKTNI..SHNGTYHCSGMGK..........
......HRYTSAGISVTVK
>X14356VAR1|FCGR1A*03|Homo sapiens|F|EX5|[D3]|C-LIKE|
...LFPAPVLNASVTSPLLEG......NLVTLSCETKLLLQ..RPGLQLYFSFYMGSKT.
.LRGRNTSSE.............YQILTARRED......SGLYWCEAATEDGNVLKRS.P
ELELQVL
>X14356VAR1|FCGR1A*03|Homo sapiens|F|EX6|[D4]|
LQLPTPVWFHVLFYLAVGIMFLVNTVLWVTIRKELKRKKKWDLEISLDSGHEKKVTSSLQ
EDRHLEEELKCQEQKEEQLQEGVHRKEPQGAT*