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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) 
>X06948|FCER1A*01|Homo sapiens|F|EX1|
MAPAMESPTLLCVALLFF
>X06948|FCER1A*01|Homo sapiens|F|EX2|
PDGVLA
>X06948|FCER1A*01|Homo sapiens|F|EX3|[D1]|C-LIKE|
......PQKPKVSLNPPWNRIFK...GENVTLTCNGNNFFE...VSSTKWFHNGSL....
.SEETN...................SSLNIVNAKF..EDSGEYKC QHQQ..........
........VNE SEPVYLEVFS
>X06948|FCER1A*01|Homo sapiens|F|EX4|[D2]|C-LIKE|
..........WLLLQASAEVVME...GQPLFLRCHGWRNWD...VYKVIYYKDGEAL...
.KYWYEN..................HNISITNATV..EDSGTYYCTGKVW..........
.....QLDYESEPLNITVI
>X06948|FCER1A*01|Homo sapiens|F|EX5|
PREKYWLQFFIPLLVVILFAVDTGLFISTQQQVTFLLKIKRTRKGFRLLNPHPKPNPKNN
*
>BC015195|FCER1A*02|Homo sapiens|F|EX1|
MAPAMESPTLLCVALLFF
>BC015195|FCER1A*02|Homo sapiens|F|EX2|
PDGVLA
>BC015195|FCER1A*02|Homo sapiens|F|EX3|[D1]|C-LIKE|
......PQKPKVSLNPPWNRIFK...GENVTLTCNGNNFFE...VSSTKWFHNGSL....
.SEETN...................SSLNIVNAKF..EDSGEYKCQHQQ...........
.......VNE SEPVYLEVFS
>BC015195|FCER1A*02|Homo sapiens|F|EX4|[D2]|C-LIKE|
..........WLLLQASAEVVME...GQPLFLRCHGWRNWD...VYKVIYYKDGEAL...
.KYWYEN..................HNISITNATV..EDSGTYYCTGKVW..........
.....QLDYESEPLNITVI
>BC015195|FCER1A*02|Homo sapiens|F|EX5|
PREKYWLQFFIPLLVVILFAVDTGLFISTQQQATFLLKIKRTRKGFRLLNPHPKPNPKNN
*