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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) 
>X06026|CD3G*01|Homo sapiens|F|EX1
MEQGKGLAVLILAIILLQ
>X06027|CD3G*01|Homo sapiens|F|[D]|EX2|C-LIKE|
...GTLAQSIK
>X06028|CD3G*01|Homo sapiens|F|[D]|EX3|C-LIKE|
GNHLVKVYDYQE...DGSVLLTCDAEA.......KNITWFKDGKMIGF..LTEDK.....
..............KKWNLGSNAK..DPRGMYQCKGS.......QNKSKPLQVYYR
>X06029|CD3G*01|Homo sapiens|F|EX4|
MCQNCIELNAATISGFLFAEIVSIFVLAVGVYFIAGQDGVRQSR
>X06030|CD3G*01|Homo sapiens|F|EX5|
ASDKQTLLPNDQLYQ
>X06031|CD3G*01|Homo sapiens|F|EX6|
PLKDREDDQYSHLQGNQLRRN