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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) 
>M23317|CD3E*01|Homo sapiens|F|EX1|
MQSGTHWRVLGLCLLS
>M23318|CD3E*01|Homo sapiens|F|[D]|EX2|C-LIKE|
VGVWGQD
>M23319|CD3E*01|Homo sapiens|F|[D]|EX3|C-LIKE|
GNEEM
>M23320|CD3E*01|Homo sapiens|F|[D]|EX4|C-LIKE|
GGITQT
>M23321|CD3E*01|Homo sapiens|F|[D]|EX5|C-LIKE|
PYKVSISGTTVILTCPQYPGSEILWQHNDKNIGGDEDDKNIGSDEDHLSLKEFSELEQSG
YYVCYPRGSKPEDANFYLYLRAR
>L34846|CD3E*01|Homo sapiens|F|[D]|EX6|
VCENCMEMDVMSVATIVIVDICITGGLLLLVYYWSKNRKAKAKPVTRGAGAGGRQR
>M23322|CD3E*01|Homo sapiens|F|EX7|
GQNKERPPPVPNPDY
>CD3E*01|Homo sapiens|F|EX1-EX8|Splicing A|complete|
MQSGTHWRVLGLCLLSVGVWGQDGNEEMGGITQTPYKVSISGTTVILTCPQYPGSEILWQ
HNDKNIGGDEDDKNIGSDEDHLSLKEFSELEQSGYYVCYPRGSKPEDANFYLYLRARVCE
NCMEMDVMSVATIVIVDICITGGLLLLVYYWSKNRKAKAKPVTRGAGAGGRQRGQNKERP
PPVPNPDYEPIRKGQRDLYSGLNQRRI*
>M23323|CD3E*01|Homo sapiens|F|EX8|
EPIRKGQRDLYSGLNQRRI
>X03884|CD3E*02|Homo sapiens|F|EX1|
MQSGTHWRVLGLCLLS
>X03884|CD3E*02|Homo sapiens|F|[D]|EX2|C-LIKE|
VGVWGQD
>X03884|CD3E*02|Homo sapiens|F|[D]|EX3|C-LIKE|
GNEEM
>X03884|CD3E*02|Homo sapiens|F|[D]|EX4|C-LIKE|
GGITQT
>X03884|CD3E*02|Homo sapiens|F|[D]|EX5|C-LIKE|
PYKVSISGTTVILTCPQYPGSEILWQHNDKNIGGDEDDKNIGSDEDHLSLKEFSELEQSG
YYVCYPRGSKPEDANFYLYLRAR
>X03884|CD3E*02|Homo sapiens|F|[D]|EX6|
VCENCMEMDVMSVATIVIVDICITGGLLLLVYYWSKNRKAKAKPVTRGAGAGGRQR
>X03884|CD3E*02|Homo sapiens|F|EX7|
GQNKERPPPVPNPDY
>X03884|CD3E*02|Homo sapiens|F|EX8|
EPIRKGQRDLYSGLNQRRI
>CD3E*02|Homo sapiens|F|EX1-EX5|Splicing A|complete|
MQSGTHWRVLGLCLLSVGVWGQDGNEEMGGITQTPYKVSISGTTVILTCPQYPGSEILWQ
HNDKNIGGDEDDKNIGSDEDHLSLKEFSELEQSGYYVCYPRGSKPEDANFYLYLRARVCE
NCMEMDVMSVATIVIVDICITGGLLLLVYYWSKNRKAKAKPVTRGAGAGGRQRGQNKERP
PPVPNPDYEPIRKGQRDLYSGLNQRRI*