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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) 
>M12807|CD4*01|Homo sapiens|F|EX1|
MNRGVPFRHLLLVLQL
>M12807|CD4*01|Homo sapiens|F|EX2|[D1]|V-LIKE|
ALLPAATQGKKVVLGKKGDTVELTCTASQKK......SIQFHWKNS....NQIKILGNQG
....SFLTK
>M12807|CD4*01|Homo sapiens|F|EX3|[D1]|V-LIKE|
GPSKLNDRADSRRSLWDQGNFPLIIKNLKIEDSDTYICEVE........DQKEEVQLLVF
G
>M12807|CD4*01|Homo sapiens|F|EX4|[D2]|C-LIKE|
LTANSDTHLLQGQSLTLTLESPP...GSSPSVQCRSPR.........GKNIQGG......
.........................KTLSVSQLEL..QDSGTWTCTVLQN...QKKVEFK
IDIVVL
>M12807|CD4*01|Homo sapiens|F|EX5|[D3]|V-LIKE|
..AFQKASSIVYKKEGEQVEFSFPLAFTVEK..LTGSGELWWQAERASSSKSWITFDLKN
KEVSVKRVTQD.....PKLQMGKKLPLHLTLPQALPQYAGSGNLTLALEA..KTGKLHQE
VNLVVMR
>M12807|CD4*01|Homo sapiens|F|EX6|[D4]|C-LIKE|
..............ATQ.LQ.........KNLTCEVWGPT....SPKLMLSLKLEN....
.KEAKVSKRE............KAVWVLNPEA........GMWQCLLSDS....GQVLLE
SNIK
>M12807|CD4*01|Homo sapiens|F|EX7|
VLPTWSTPVQPMALIVLGGVAGLLLFIGLGIFFCVRCRHRR
>M12807|CD4*01|Homo sapiens|F|EX8|
RQAERMSQIKRLLSEKKTCQCP
>M12807|CD4*01|Homo sapiens|F|EX9|
HRFQKTCSPI
>M35160|CD4*02|Homo sapiens|F|EX1|
MNRGVPFRHLLLVLQL
>M35160|CD4*02|Homo sapiens|F|EX2|[D1]|V-LIKE|
ALLPAATQGKKVVLGKKGDTVELTCTASQKK......SIQFHWKNS....NQIKILGNQG
....SFLTK
>M35160|CD4*02|Homo sapiens|F|EX3|[D1]|V-LIKE|
GPSKLNDRADSRRSLWDQGNFPLIIKNLKIEDSDTYICEVE........DQKEEVQLLVF
G
>M35160|CD4*02|Homo sapiens|F|EX4|[D2]|C-LIKE|
LTANSDTHLLQGQSLTLTLESPP...GSSPSVQCRSPR.........GKNIQGG......
.........................KTLSVSQLEL..QDSGTWTCTVLQN...QKKVEFK
IDIVVL
>M35160|CD4*02|Homo sapiens|F|EX5|[D3]|V-LIKE|
..AFQKASSIVYKKEGEQVEFSFPLAFTVEK..LTGSGELWWQAERASSSKSWITFDLKN
KEVSVKWVTQD.....PKLQMGKKLPLHLTLPQALPQYAGSGNLTLALEA..KTGKLHQE
VNLVVMR
>M35160|CD4*02|Homo sapiens|F|EX6|[D4]|C-LIKE|
..............ATQ.LQ.........KNLTCEVWGPT....SPKLMLSLKLEN....
.KEAKVSKRE............KAVWVLNPEA........GMWQCLLSDS....GQVLLE
SNIK
>M35160|CD4*02|Homo sapiens|F|EX7|
VLPTWSTPVQPMALIVLGGVAGLLLFIGLGIFFCVRCRHRR
>M35160|CD4*02|Homo sapiens|F|EX8|
RQAERMSQIKRLLSEKKTCQCP
>M35160|CD4*02|Homo sapiens|F|EX9|
HRFQKTCSPI
>U40625|CD4*03|Homo sapiens|F|EX4|[D2]|C-LIKE|partial|
ANSDTHLLQGQSLTLTLESPP...GSSPSVQCRSPR.........GKNIQGG........
.......................KTLSVSQLEL..QDSGTWTCTVLQN...QKKVEFKID
IVVL
>U40625|CD4*03|Homo sapiens|F|EX5|[D3]|V-LIKE|partial|
AF
>DQ012936|CD4*04|Homo sapiens|F|EX1|
MNRGVPFRHLLLVLQL
>DQ012936|CD4*04|Homo sapiens|F|EX2|[D1]|V-LIKE|
ALLPAATQGKKVVLGKKGDTVELTCTASQKK......SIQFHWKNS....NQIKILGNQG
....SFLTK
>DQ012936|CD4*04|Homo sapiens|F|EX3|[D1]|V-LIKE|
GPSKLNDRADSRRSLWDQGNFPLIIKNLKIEDSDTYICEVE........DQKEEVQLLVF
G
>DQ012936|CD4*04|Homo sapiens|F|EX4|[D2]|C-LIKE|
LTANSDTHLLQGQSLTLTLESPP...GSSPSVQCRSPR.........GKNIQGG......
.........................KTLSVSQLEL..QDSGTWTCTVLQN...QKKVEFK
IDIVVL
>DQ012936|CD4*04|Homo sapiens|F|EX5|[D3]|V-LIKE|
..AFQKASSIVYKKEGEQVEFSFPLAFTVEK..LTGSGELWWQAERASSSKSWITFDLKN
KEVSVKRVTQD.....PKLQMGKKLPLHLTLPQALPQYAGSGNLTLALEA..KTGKLHQE
VNLVVMR
>DQ012936|CD4*04|Homo sapiens|F|EX6|[D4]|C-LIKE|
..............ATQ.LQ.........KNLTCEVWGPT....SPKLMLSLKLEN....
.KEAKVSKRE............KAVWVLNPEA........GMWQCLLSDS....GQVLLE
SNIK
>DQ012936|CD4*04|Homo sapiens|F|EX7|
VLPTWSTPVQPMALIVLGGVAGLLLFIGLGIFFCVRCRHRR
>DQ012936|CD4*04|Homo sapiens|F|EX8|
RQAERMSQIKRLLSEKKTCQCP
>DQ012936|CD4*04|Homo sapiens|F|EX9|
HRFQKTCSPI
>U47924|CD4*05|Homo sapiens|F|EX1|
MNRGVPFRHLLLVLQL
>U47924|CD4*05|Homo sapiens|F|EX2|[D1]|V-LIKE|
ALLPAATQGKKVVLGKKGDTVELTCTASQKK......SIQFHWKNS....NQIKILGNQG
....SFLTK
>U47924|CD4*05|Homo sapiens|F|EX3|[D1]|V-LIKE|
GPSKLNDRADSRRSLWDQGNFPLIIKNLKIEDSDTYICEVE........DQKEEVQLLVF
G
>U47924|CD4*05|Homo sapiens|F|EX4|[D2]|C-LIKE|
LTANSDTHLLQGQSLTLTLESPP...GSSPSVQCRSPR.........GKNIQGG......
.........................KTLSVSQLEL..QDSGTWTCTVLQN...QKKVEFK
IDIVVL
>U47924|CD4*05|Homo sapiens|F|EX5|[D3]|V-LIKE|
..AFQKASSIVYKKEGEQVEFSFPLAFTVEK..LTGSGELWWQAERASSSKSWITFDLKN
KEVSVKRVTQD.....PKLQMGKKLPLHLTLPQALPQYAGSGNLTLALEA..KTGKLHQE
VNLVVMR
>U47924|CD4*05|Homo sapiens|F|EX6|[D4]|C-LIKE|
..............ATQ.LQ.........KNLTCEVWGPT....SPKLMLSLKLEN....
.KEAKVSKRE............KAVWVLNPEA........GMWQCLLSDS....GQVLLE
SNIK
>U47924|CD4*05|Homo sapiens|F|EX7|
VLPTWSTPVQPMALIVLGGVAGLLLFIGLGIFFCVRCRHRR
>U47924|CD4*05|Homo sapiens|F|EX8|
RQAERMSQIKRLLSEKKTCQCP
>U47924|CD4*05|Homo sapiens|F|EX9|
HRFQKTCSPI