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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) 
>M31314|FCGR1*01|Mus musculus|F|EX1|
MILTSFGDDMWLLTTLLLW
>M31314|FCGR1*01|Mus musculus|F|EX2|
VPVGGEV
>M31314|FCGR1*01|Mus musculus|F|EX3|[D1]|C-LIKE|
........ATKAVITLQPPWVSIFQ.KENVTLWCEGPHLPG...DSSTQWFINGTA....
.VQIST...................PSYSIPEASF..QDSGEYRCQIGSS..........
........MPSDPVQLQIHN
>M31314|FCGR1*01|Mus musculus|F|EX4|[D2]|C-LIKE|
..........WLLLQASRRVLTE...GEPLALRCHGWKNKL...VYNVVFYRNGKSF...
.QFSSDSE..................VAILKTNL..SHSGIYHCSGTGRHR.........
.......YTSAGVSITVK
>M31314|FCGR1*01|Mus musculus|F|EX5|[D3]|C-LIKE|
...LFTTPVLRASVSSPFPEG......SLVTLNCETNLLLQ..RPGLQLHFSFYVGSKI.
.LEYRNTSSE.............YHIARAERED......AGFYWCEVATEDSSVLKRSPE
LELQV...
>M31314|FCGR1*01|Mus musculus|F|EX6|[D4]|
GPQSSAPVWFHILFYLSVGIMFSLNTVLYVKIHRLQREKKYNLEVPLVSEQGKKANSFQQ
VRSDGVYEEVTATASQTTPKEAPDGPRSSVGDCGPEQPEPLPPSDSTGAQTSQS*
>AF143171|FCGR1*02|Mus musculus|F|EX1|
MILTSFGDDMWLLTTLLLW
>AF143171|FCGR1*02|Mus musculus|F|EX2|
VPVGGEV
>AF143171|FCGR1*02|Mus musculus|F|EX3|[D1]|C-LIKE|
........ATKVVITLQPPWVSIFQ.KENVTLWCEGPHLPG...DSSTQWFINGTA....
.VQIST...................PSYSIPEASF..QDSGEYRCQIGSS..........
........MPSDPVQLQIHN
>AF143171|FCGR1*02|Mus musculus|F|EX4|[D2]|C-LIKE|
..........WLLLQASRRVLTE...GEPLALRCHGWKNKL...VYNVVFYRNGKSF...
.QFSSDSE..................VAILKTNL..SHSGIYHCSGTGRHR.........
.......YTSAGVSITVK
>AF143171|FCGR1*02|Mus musculus|F|EX5|[D3]|C-LIKE|
...LFTTPVLRASVSSPFPEG......SLVTLNCETNLLLQ..RPGLQLHFSFYVGSKI.
.LEYRNTSSE.............YHIPRVERED......AGFYWCEVATEDSSVLKRSPE
LELQV...
>AF143171|FCGR1*02|Mus musculus|F|EX6|[D4]|
GPQSSAPVWFHILFYLSVGIMFSLNTVLYVKIHRLQREKKYNLEVPLVSEQGKKANSFQQ
VRSDGVYEEVTATASQTTPKEAPDGPRSSVGDCGPEQPEPLPPSDSTGAQTSQS*
>AF143180|FCGR1*03|Mus musculus|F|EX1|
MILTSFGDDMWLLTTLLLW
>AF143180|FCGR1*03|Mus musculus|F|EX2|
VPVGGEV
>AF143180|FCGR1*03|Mus musculus|F|EX3|[D1]|C-LIKE|
........TTKAVITLQPPWVSVFQ.EETVTLHCEVLHLPG...SSSTQWFLNGTA....
.TQTST...................PSYRITSASV..NDSGEYRCQRGL...........
.......SGRSDPIQLEIHR
>AF143180|FCGR1*03|Mus musculus|F|EX4|[D2]|C-LIKE|
..........WLLLQVSSRVFTE...GEPLALRCHAWKDKL...VYNVLYYRNGKAF...
.KFFHWN..................SNLTILKTNI..SHNGTYHCSGMGK..........
......HRYTSAGISVTVK
>AF143180|FCGR1*03|Mus musculus|F|EX5|[D3]|C-LIKE|
...LFTTPVLRASVSSPFPEG......SLVTLNCETNLLLQ..RPGLQLHFSFYVGSKI.
.LEYRNTSSE.............YHIPRVERED......AGFYWCEVATEDSSVLKRSPE
LELQV...
>AF143180|FCGR1*03|Mus musculus|F|EX6|[D4]|
GPQSSAPVWFHILFYLSVGIMFSLNTVLYVKIHRLQREKKYNLEVPLVSEQGKKANSFQQ
VRSDGVYEEVTATASQTTPKEAPDGPRSSVGDCGPEQPEPLPPSDSTGAQTSQS*
>AF143181|FCGR1*04|Mus musculus|F|EX1|
MILTSFGDDMWLLTTLLLW
>AF143181|FCGR1*04|Mus musculus|F|EX2|
VPVGGEV
>AF143181|FCGR1*04|Mus musculus|F|EX3|[D1]|C-LIKE|
........ATKAVITLQPPWASIFQ.KENVTLWCEGPHLPG...DSSTQWFINGTV....
.VQTST...................PSYSISVASF..QDSGEYRCQIGSS..........
........VPSDPVQLQIHKE
>AF143181|FCGR1*04|Mus musculus|F|EX4|[D2]|C-LIKE|
..........WLLLQASRRVLTE...GEPLALRCHGWKNKL...VYNVVFYRNGKSF...
.KFSSGSK..................IAILKTNL..SHSGIYHCSGMGRHR.........
.......YTSAGVSITVK
>AF143181|FCGR1*04|Mus musculus|F|EX5|[D3]|C-LIKE|
...LFTTPVLRASVSSPFPEG......SLVTLNCETNLLLQ..RPGLQLYFSFYVGSKI.
.LEYRNTSSE.............YHIARAERED......AGFYWCEVATEDSSVLKHSPK
LELQV...
>AF143181|FCGR1*04|Mus musculus|F|EX6|[D4]|
GPQSSAPVWFHILFYLSVGIMFLVNTVLYVKIHRLQRRNTT*
>AF143185|FCGR1*05|Mus musculus|F|EX1|
MILTSFGDDMWLLTTLLLW
>AF143185|FCGR1*05|Mus musculus|F|EX2|
VPVGGEV
>AF143185|FCGR1*05|Mus musculus|F|EX3|[D1]|C-LIKE|
........ATKAVITLQPPWASIFQ.KENVTLWCEGPHLPG...DSSTQWFINGTT....
.VQTST...................PSYSISVASF..QDSGEYRCQIGSS..........
........MPSDPVQLQIHKE
>AF143185|FCGR1*05|Mus musculus|F|EX4|[D2]|C-LIKE|
..........WLLLQASRRVLTE...GEPLALRCHGWKNKL...VYNVVFYRNGKSF...
.KFSSGSK..................IAILKTNL..SHSGIYHCSGMGRHR.........
.......YTSAGVSITVK
>AF143185|FCGR1*05|Mus musculus|F|EX5|[D3]|C-LIKE|
...LFTTPVLRASVSSPFPEG......SLVTLNCETNLLLQ..RPGLQLYFSFYVGSKI.
.LEYRNTSSE.............YHIPRAERED......AGFYWCEVATEDSSVLKHSPK
LELQV...
>AF143185|FCGR1*05|Mus musculus|F|EX6|[D4]|
GPRSSAPVWFHILFYLSVGIMFLVNTVLYVKIHRLQRRNTT*
>AF143186|FCGR1*06|Mus musculus|F|EX1|
MILTSFGDDMWLLTTLLLW
>AF143186|FCGR1*06|Mus musculus|F|EX2|
VPVGGEV
>AF143186|FCGR1*06|Mus musculus|F|EX3|[D1]|C-LIKE|
........ATKAVITLQPPWVSIFQ.KENVTLWCEGPHLPG...DSSTQWFINRTA....
.VQIST...................PSYSIPEASF..QDSGEYRCQIGSS..........
........MPSDPVQLQIHN
>AF143186|FCGR1*06|Mus musculus|F|EX4|[D2]|C-LIKE|
..........WLLLQASRRVLTE...GEPLALRCHGWKNKL...VYNVVFYRNGKSF...
.QFSSDSE..................VAILKTNL..SHSGIYHCSGTGRHR.........
.......YTSAGVSITVK
>AF143186|FCGR1*06|Mus musculus|F|EX5|[D3]|C-LIKE|
...LFTTPVLRASVSSPFPEG......SLVTLNCETNLLLQ..RPGLQLHFSFYVGSKI.
.LEYRNTSSE.............YHIARAERED......AGFYWCEVATEDSSVLKRSPE
LELQV...
>AF143186|FCGR1*06|Mus musculus|F|EX6|[D4]|
GPQSSAPVWFHILFYLSVGIMFSLNTVLYVKIHKLQREKKYNLEVPLVSEQGKKANSFQQ
VRSDGVYEEVTATASQTTPKEAPDGPRSSVGDCGPEQPETLPPSDSTGAQTSQS*
>AF143187|FCGR1*07|Mus musculus|F|EX1|
MILTSFGDDMWLLTTLLLW
>AF143187|FCGR1*07|Mus musculus|F|EX2|
VPVGGEV
>AF143187|FCGR1*07|Mus musculus|F|EX3|[D1]|C-LIKE|
........ATKAVITLQPPWVSIFQ.KENVTLWCEGPHLPG...DSSTQWFINGTA....
.VQIST...................PSYSIPEASF..QDSGEYRCQIGSS..........
........MPSDPVQLQIHN
>AF143187|FCGR1*07|Mus musculus|F|EX4|[D2]|C-LIKE|
..........WLLLQASRRVLTE...GEPLALRCHGWKNKL...VYNVVFYRNGKSF...
.QFSSDSE..................VAILKTNL..SHSGIYHCSGTGRHR.........
.......YTSAGVSITVK
>AF143187|FCGR1*07|Mus musculus|F|EX5|[D3]|C-LIKE|
...LFTTPVLRASVSSPFPEG......SLVTLNCETNLLLQ..RPGLQLHFSFYVGSKI.
.LEYRNTSSE.............YRIARAERED......AGFYWCEVATEDSSVLKRSPE
LELQV...
>AF143187|FCGR1*07|Mus musculus|F|EX6|[D4]|
GPQSSAPVWFHILFYLSVGIMFSLNTVLYVKIHRLQREKKYNLEVPLVSEQGKKANSFQQ
VRSDGVYEEVTATASQTTPKEAPDGPRSSVGDCGPEQPEPLPPSDSTGAQTSQS*