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IMGT reference sequences in FASTA format:

Amino acid sequences without 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) 
>J03858|CEACAM1*01|Homo sapiens|F|EX1|
MGHLSAPLHRVRVPWQGLLLT
>J03858|CEACAM1*01|Homo sapiens|F|EX2|[D1]|V-LIKE|
ASLLTFWNPPTTAQLTTESMPFNVAEGKEVLLLVHNLPQQLFGYSWYKGERVDGNRQIVG
YAIGTQQATPGPANSGRETIYPNASLLIQNVTQNDTGFYTLQVIKSDLVNEEATGQFHVY
>J03858|CEACAM1*01|Homo sapiens|F|EX3|[D2]|C-LIKE|
PELPKPSISSNNSNPVEDKDAVAFTCEPETQDTTYLWWINNQSLPVSPRLQLSNGNRTLT
LLSVTRNDTGPYECEIQNPVSANRSDPVTLNVT
>J03858|CEACAM1*01|Homo sapiens|F|EX4|[D3]|C-LIKE|
YGPDTPTISPSDTYYRPGANLSLSCYAASNPPAQYSWLINGTFQQSTQELFIPNITVNNS
GSYTCHANNSVTGCNRTTVKTIIVT
>J03858|CEACAM1*01|Homo sapiens|F|EX5|[D4]|C3-LIKE|
ELSPVVAKPQIKASKTTVTGDKDSVNLTCSTNDTGISIRWFFKNQSLPSSERMKLSQGNT
TLSINPVKREDAGTYWCEVFNPISKNQSDPIMLNVN
>J03858|CEACAM1*01|Homo sapiens|F|EX7|
YNALPQENGLSPGAIAGIVIGVVALVALIAVALACFLHFGKTG
>J03858|CEACAM1*01|Homo sapiens|F|EX8|
RASDQRDLTEHKPSVSNH
>J03858|CEACAM1*01|Homo sapiens|F|EX9|
TQDHSNDPPNK
>J03858|CEACAM1*01|Homo sapiens|F|EX10|
MNEVTYSTLNFEAQQPTQPTSASPSLTATEIIYSEVKKQ
>D12502|CEACAM1*02|Homo sapiens|F|EX1|
MGHLSAPLHRVRVPWQGLLLT
>D12502|CEACAM1*02|Homo sapiens|F|EX2|[D1]|V-LIKE|
ASLLTFWNPPTTAQLTTESMPFNVAEGKEVLLLVHNLPQQLFGYSWYKGERVDGNRQIVG
YAIGTQQATPGPANSGRETIYPNASLLIQNVTQNDTGFYTLQVIKSDLVNEEATGQFHVY
>D12502|CEACAM1*02|Homo sapiens|F|EX3|[D2]|C-LIKE|
PELPKPSISSNNSNPVEDKDAVAFTCEPETQDTTYLWWINNQSLPVSPRLQLSNGNRTLT
LLSVTRNDTGPYECEIQNPVSANRSDPVTLNVT
>D12502|CEACAM1*02|Homo sapiens|F|EX4|[D3]|C-LIKE|
YGPDTPTISPSYTYYRPGANLSLSCYAASNPPAQYSWLINGTFQQSTQELFIPNITVNNS
GSYTCHANNSVTGCNRTTVKTIIVT
>D12502|CEACAM1*02|Homo sapiens|F|EX6|
ERQNLTMLPGLDSNSWAQAILPSVSQSAEIT
>D12502|CEACAM1*02|Homo sapiens|F|EX7|
DNALPQENGLSPGAIAGIVIGVVALVALIAVALACFLHFGKTG
>D12502|CEACAM1*02|Homo sapiens|F|EX8|
RASDQRDLTEHKPSVSNH
>D12502|CEACAM1*02|Homo sapiens|F|EX9|
TQDHSNDPPNK
>D12502|CEACAM1*02|Homo sapiens|F|EX10|
MNEVTYSTLNFEAQQPTQPTSASPSLTATEIIYSEVKKQ