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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) 
>M19799|CD2*01|Mus musculus|F|EX1|
MKCKFLGSFFLLFSLSGK
>M19801|CD2*01|Mus musculus|F|EX2|[D1]|V-LIKE|
.GADCRDNETIWGVLGHGITLNIPNFQMTD....DIDEVRWVRRG..TLVAEFKRKKP..
...PFLISETY.....EVLANGS...LKIKKPMMRN.DSGTYNVMVYGTN..GMTRLEKD
LDVRIL
>M19803|CD2*01|Mus musculus|F|EX3|[D2]|C-LIKE|
........ERVSKPVIHWECP.......NTTLTCAVLQGT....DFELKLYQGETLLN..
.SLPQ.....................KNMSYQWTN...LSAPFKCEAINP....VSKESK
TEVVNCP
>M19805|CD2*01|Mus musculus|F|EX4|
EKGLSFYVTVGVGAGGLLLVLLVALFIFCICKRRKRNRRRK
>M19807|CD2*01|Mus musculus|F|EX5|
DEELEIKASRTSTVERGPKPHSTPAAAAQNSVALQAPPPPGHHLQTPGHRPLPPGHRTRE
HQQKKRPPPSGTQIHQQKGPPLPRPRVQPKPPCGSGDGVSLPPPN
>M18934|CD2*02|Mus musculus|F|EX1|
MKCKFLGSFFLLFSLSGK
>M18934|CD2*02|Mus musculus|F|EX2|[D1]|V-LIKE|
.GADCRDNETIWGVLGHGITLNIPNFQMTD....DIDEVRWVRRG..TLVAEFKRKKP..
...PFLISETY.....EVLANGS...LKIKKPMMRN.DSGTYNVMVYGTN..GMTRLEKD
LDVRIL
>M18934|CD2*02|Mus musculus|F|EX3|[D2]|C-LIKE|
........ERVSKPVIHWECP.......NTTLICAVLQGT....DFELKLYQGETLLN..
.SLPQ.....................KNMSYQWTN...LSAPFKCEAINP....VSKESK
TEVVNCP
>M18934|CD2*02|Mus musculus|F|EX4|
EKGLSFYVTVGVGAGGLLLVLLVALFIFCICKRRKRNRRRK
>M18934|CD2*02|Mus musculus|F|EX5|
DEELEIKASRTSTVERGPKPHSTPAAAAQNSVALQAPPPPGHHLQTPGHRPLPPGHRTRE
HQQKKRPPPSGTQIHQQKGPPLPRPRVQPKPPCGSGDGVSLPPPN
>AL672260|CD2*03|Mus musculus|F|EX1|
MKCKFLGSFFLLFSLSGK
>AL672260|CD2*03|Mus musculus|F|EX2|[D1]|V-LIKE|
.GADCRDNETIWGVLGHGITLNIPNFQMTD....DIDEVRWVRRG..TLVAEFKRKKP..
...PFLISETY.....EVLANGS...LKIKKPMMRN.DSGTYNVMVYGTN..GMTRLEKD
LDVRIL
>AL672260|CD2*03|Mus musculus|F|EX3|[D2]|C-LIKE|
........ERVSKPMIHWECP.......NTTLTCAVLQGT....DFELKLYQGETLLN..
.SLPQ.....................KNMSYQWTN...LNAPFKCEAINP....VSKESK
MEVVNCP
>AL672260|CD2*03|Mus musculus|F|EX4|
EKGLSFYVTVGVGAGGLLLVLLVALFIFCICKRRKRNRRRK
>AL672260|CD2*03|Mus musculus|F|EX5|
DEELEIKASRTSTVERGPKPHSTPAAAAQNSVALQAPPPPGHHLQTPGHRPLPPGHRTRE
HQQKKRPPPSGTQIHQQKGPPLPRPRVQPKPPCGSGDGVSLPPPN
>X06143|CD2*04|Mus musculus|F|EX1|
MKCKFLGSFFLLFSLSGK
>X06143|CD2*04|Mus musculus|F|EX2|[D1]|V-LIKE|
.GADCRDNETIWGVLGHGITLNIPNFQMTD....DIDEVRWVRRG..TLVAEFKRKKP..
...PFLISETY.....EVLANGS...LKIKKPMMRN.DSGTYNVMVYGTN..GMTRLEKD
LDVRIL
>X06143|CD2*04|Mus musculus|F|EX3|[D2]|C-LIKE|
........ERVSKPMIHWECP.......NTTLTCAVLQGT....DFELKLYQGETLLN..
.SLPQ.....................KNMSYQWTN...LNAPFKCEAINP....VSKESN
MEVVNCP
>X06143|CD2*04|Mus musculus|F|EX4|
EKGLSFYVTVGVGAGGLLLVLLVALFIFCICKRRKRNRRRK
>X06143|CD2*04|Mus musculus|F|EX5|
DEELEIKASRTSTVERGPKPHSTPAAAAQNSVALQAPPPPGHHLQTPGHRPLPPGHRTRE
HQQKKRPPPSGTQIHQQKGPPLPRPRVQPKPPCGSGDGVSLPPPN