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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) 
>AF363458|PDCD1*01|Homo sapiens|F|EX1|
MQIPQAPWPVVWAVLQLGWRPGWFL
>AF363458|PDCD1*01|Homo sapiens|F|EX2|[D]|V-LIKE|
DSPDRPWNPPTFSPALLVVTEGDNATFTCSFSNTSESFVLNWYRMSPSNQTDKLAAFPED
RSQPGQDCRFRVTQLPNGRDFHMSVVRARRNDSGTYLCGAISLAPKAQIKESLRAELRVT
>AF363458|PDCD1*01|Homo sapiens|F|EX3|
ERRAEVPTAHPSPSPRPAGQFQTLVVGVVGGLLGSLVLLVWVLAVICSRAAR
>AF363458|PDCD1*01|Homo sapiens|F|EX4|
GTIGARRTGQPL
>AF363458|PDCD1*01|Homo sapiens|F|EX5|
KEDPSAVPVFSVDYGELDFQWREKTPEPPVPCVPEQTEYATIVFPSGMGTSSPARRGSAD
GPRSAQPLRPEDGHCSWPL
>PDCD1*01|Homo sapiens|F|EX1-EX5|Splicing A|complete|
MQIPQAPWPVVWAVLQLGWRPGWFLDSPDRPWNPPTFSPALLVVTEGDNATFTCSFSNTS
ESFVLNWYRMSPSNQTDKLAAFPEDRSQPGQDCRFRVTQLPNGRDFHMSVVRARRNDSGT
YLCGAISLAPKAQIKESLRAELRVTERRAEVPTAHPSPSPRPAGQFQTLVVGVVGGLLGS
LVLLVWVLAVICSRAARGTIGARRTGQPLKEDPSAVPVFSVDYGELDFQWREKTPEPPVP
CVPEQTEYATIVFPSGMGTSSPARRGSADGPRSAQPLRPEDGHCSWPL*