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IMGT reference sequences in FASTA format:

Nucleotide 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) 
>M23317|CD3E*01|Homo sapiens|F|EX1|
atgcagtcgggcactcactggagagttctgggcctctgcctcttatcag
>M23318|CD3E*01|Homo sapiens|F|[D]|EX2|C-LIKE|
ttggtgtttgggggcaagatg
>M23319|CD3E*01|Homo sapiens|F|[D]|EX3|C-LIKE|
gtaatgaagaaatgg
>M23320|CD3E*01|Homo sapiens|F|[D]|EX4|C-LIKE|
gtggtattacacagacac
>M23321|CD3E*01|Homo sapiens|F|[D]|EX5|C-LIKE|
catataaagtctccatctctggaaccacagtaatattgacatgccctcagtatcctggat
ctgaaatactatggcaacacaatgataaaaacataggcggtgatgaggatgataaaaaca
taggcagtgatgaggatcacctgtcactgaaggaattttcagaattggagcaaagtggtt
attatgtctgctaccccagaggaagcaaaccagaagatgcgaacttttatctctacctga
gggcaagag
>L34846|CD3E*01|Homo sapiens|F|[D]|EX6|
tgtgtgagaactgcatggagatggatgtgatgtcggtggccacaattgtcatagtggaca
tctgcatcactgggggcttgctgctgctggtttactactggagcaagaatagaaaggcca
aggccaagcctgtgacacgaggagcgggtgctggcggcaggcaaaggg
>M23322|CD3E*01|Homo sapiens|F|EX7|
gacaaaacaaggagaggccaccacctgttcccaacccagactat
>M23323|CD3E*01|Homo sapiens|F|EX8|
gagcccatccggaaaggccagcgggacctgtattctggcctgaatcagagacgcatc
>CD3E*01|Homo sapiens|F|EX1-EX8|Splicing A|complete|
atgcagtcgggcactcactggagagttctgggcctctgcctcttatcagttggtgtttgg
gggcaagatggtaatgaagaaatgggtggtattacacagacaccatataaagtctccatc
tctggaaccacagtaatattgacatgccctcagtatcctggatctgaaatactatggcaa
cacaatgataaaaacataggcggtgatgaggatgataaaaacataggcagtgatgaggat
cacctgtcactgaaggaattttcagaattggagcaaagtggttattatgtctgctacccc
agaggaagcaaaccagaagatgcgaacttttatctctacctgagggcaagagtgtgtgag
aactgcatggagatggatgtgatgtcggtggccacaattgtcatagtggacatctgcatc
actgggggcttgctgctgctggtttactactggagcaagaatagaaaggccaaggccaag
cctgtgacacgaggagcgggtgctggcggcaggcaaaggggacaaaacaaggagaggcca
ccacctgttcccaacccagactatgagcccatccggaaaggccagcgggacctgtattct
ggcctgaatcagagacgcatctga
>X03884|CD3E*02|Homo sapiens|F|EX1|
atgcagtcgggcactcactggagagttctgggcctctgcctcttatcag
>X03884|CD3E*02|Homo sapiens|F|[D]|EX2|C-LIKE|
ttggcgtttgggggcaagatg
>X03884|CD3E*02|Homo sapiens|F|[D]|EX3|C-LIKE|
gtaatgaagaaatgg
>X03884|CD3E*02|Homo sapiens|F|[D]|EX4|C-LIKE|
gtggtattacacagacac
>X03884|CD3E*02|Homo sapiens|F|[D]|EX5|C-LIKE|
catataaagtctccatctctggaaccacagtaatattgacatgccctcagtatcctggat
ctgaaatactatggcaacacaatgataaaaacataggcggtgatgaggatgataaaaaca
taggcagtgatgaggatcacctgtcactgaaggaattttcagaattggagcaaagtggtt
attatgtctgctaccccagaggaagcaaaccagaagatgcgaacttttatctctacctga
gggcaagag
>X03884|CD3E*02|Homo sapiens|F|[D]|EX6|
tgtgtgagaactgcatggagatggatgtgatgtcggtggccacaattgtcatagtggaca
tctgcatcactgggggcttgctgctgctggtttactactggagcaagaatagaaaggcca
aggccaagcctgtgacacgaggagcgggtgctggcggcaggcaaaggg
>X03884|CD3E*02|Homo sapiens|F|EX7|
gacaaaacaaggagaggccaccacctgttcccaacccagactat
>X03884|CD3E*02|Homo sapiens|F|EX8
gagcccatccggaaaggccagcgggacctgtattctggcctgaatcagagacgcatc
>CD3E*02|Homo sapiens|F|EX1-EX8|Splicing A|complete|
atgcagtcgggcactcactggagagttctgggcctctgcctcttatcagttggcgtttgg
gggcaagatggtaatgaagaaatgggtggtattacacagacaccatataaagtctccatc
tctggaaccacagtaatattgacatgccctcagtatcctggatctgaaatactatggcaa
cacaatgataaaaacataggcggtgatgaggatgataaaaacataggcagtgatgaggat
cacctgtcactgaaggaattttcagaattggagcaaagtggttattatgtctgctacccc
agaggaagcaaaccagaagatgcgaacttttatctctacctgagggcaagagtgtgtgag
aactgcatggagatggatgtgatgtcggtggccacaattgtcatagtggacatctgcatc
actgggggcttgctgctgctggtttactactggagcaagaatagaaaggccaaggccaag
cctgtgacacgaggagcgggtgctggcggcaggcaaaggggacaaaacaaggagaggcca
ccacctgttcccaacccagactatgagcccatccggaaaggccagcgggacctgtattct
ggcctgaatcagagacgcatctga