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IMGT reference sequences in FASTA format:

Nucleotide 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)
>M91646|FCGR1B*01|Homo sapiens|F|EX1|
atgtggttcttgacaactctgctcctttggg
>M91646|FCGR1B*01|Homo sapiens|F|EX2|
ttccagttgatgggcaagtgg
>M91646|FCGR1B*01|Homo sapiens|F|EX3|[D1]|C-LIKE|
......................acaccacaaaggcagtgatcactttgcagcctccatgg
gtcagcgtgttccaa...gaggaaaccgtaaccttgcactgtgaggtgctccatctgcct
ggg.........agcagctccacacagtggtttctcaatggcacagcc............
...actcagacctcgacc..........................................
...............cccagctacagaatcacctctgccagtgtc......aatgacagt
ggtgaatacaggtgccagagaggtctc.................................
.....................tcagggcgaagtgaccccatacagctggaaatccacaga
g
>M91646|FCGR1B*01|Homo sapiens|F|EX4|[D2]|C-LIKE|
...............................gctggctactactgcaggtctccagcaga
gtcttcatg.........gaaggagaacctctggccttgaggtgtcatgcgtggaaggat
aag.........ctggtgtacaatgtgctttactatcgaaatggcaaagcc.........
...tttaagtttttccactgg.......................................
...............aattctaacctcaccattctgaaaaccaac......ataagtcac
aatggcacctaccattgctcaggcatggga..............................
..................aagcatcgctacacatcagcaggaatatcacaatacactgtg
aaag
>M91646|FCGR1B*01|Homo sapiens|F|EX5|[D3]|C-LIKE|
.......agctatttccagctccagtgctgaatgcatctgtgacatccccactcctggag
ggg..................aatctggtcaccctgagctgtgaaacaaagttgctcttg
cag......aggcctggtttgtagctttacttctccttctacatgggcagcaagaccctg
cgaggcaggaacacatcctctgaataccaaatactaactgctagaagagaagactctggg
ttatactggtgcgaggctgccacagaggatggaaatgtccttaagcacagccctgagttg
gagcttcaagtgcttg
>M91646|FCGR1B*01|Homo sapiens|F|EX6|
gcctccagttaccaactcctgtctggtttcatgtccttttctatctggcagtgggaataa
tgtttttagtgaacactgttctctgggtgacaatacgtaaagaactgaaaagaaagaaaa
agtggaatttagaaatctctttggattctggtcatgagaagaaggtaatttccagccttc
aagaagacagacatttagaagaagagctgaaatgtcaggaacaaaaagaagaacagctgc
aggaaggggtgcaccggaaggagccccagggggccacgtag
>L03419|FCGR1B*01|Homo sapiens|F|EX1|splicingB
atgtggttcttgacaactctgctcctttggg
>L03419|FCGR1B*01|Homo sapiens|F|EX2|splicingB
ttccagttgatgggcaagtgg
>L03419|FCGR1B*01|Homo sapiens|F|EX4|[D1]|C-LIKE|splicingB
......................acaccacaaaggcagtgatcactttgcagcctccatgg
gtcagcgtgttccaa...gaggaaaccgtaaccttgcactgtgaggtgctccatctgcct
ggg.........agcagctccacacagtggtttctcaatggcacagcc............
...actcagacctcgacc..........................................
...............cccagctacagaatcacctctgccagtgtc......aatgacagt
ggtgaatacaggtgccagagaggtctc.................................
.....................tcagggcgaagtgaccccatacagctggaaatccacaga
g
>L03419|FCGR1B*01|Homo sapiens|F|EX4|[D2]|C-LIKE|splicingB
...............................gctggctactactgcaggtctccagcaga
gtcttcatg.........gaaggagaacctctggccttgaggtgtcatgcgtggaaggat
aag.........ctggtgtacaatgtgctttactatcgaaatggcaaagcc.........
...tttaagtttttccactgg.......................................
...............aattctaacctcaccattctgaaaaccaac......ataagtcac
aatggcacctaccattgctcaggcatggga..............................
..................aagcatcgctacacatcagcaggaatatcacaatacactgtg
aaag
>L03419|FCGR1B*01|Homo sapiens|EX6|splicingB
gcctccagttaccaactcctgtctggtttcatgtccttttctatctggcagtgggaataa
tgtttttagtgaacactgttctctgggtgacaatacgtaaagaactgaaaagaaagaaaa
agtggaatttagaaatctctttggattctggtcatgagaagaaggtaatttccagccttc
aagaagacagacatttagaagaagagctgaaatgtcaggaacaaaaagaagaacagctgc
aggaaggggtgcaccggaaggagccccagggggccacgtagcag
>L03420|FCGR1B*02|Homo sapiens|F|EX1|splicingC
atgtggttcttgacaactctgctcctttggg
>L03420|FCGR1B*02|Homo sapiens|F|EX4|[D2]|C-LIKE|splicingC
...............................gctggctactactgcaggtctccagcaga
gtcttcatg.........gaaggagaacctctggccttgaggtgtcatgcgtggaaggat
aag.........ctggtgtacaatgtgctttactatcgaaatggcaaagcc.........
...tttaagttcttccactgg.......................................
...............aattctaacctcgccattctgaaaaccaac......ataagtcac
aatggcacctaccattgctcaggcatggga..............................
..................aagcatcgctacacatcagcaggaatatcacaatacactgtg
aaag
>L03420|FCGR1B2*02|Homo sapiens|F|EX6|splicingC
gcctccagttaccaactcctgtctggtttcatgtccttttctatctggcagtgggaataa
tgtttttagtgaacactgttctctgggtgacaatacgtaaagaactgaaaagaaagaaaa
agtggaatttagaaatctctttggattctggtcatgagaagaaggtaatttccagccttc
aagaagacagacatttagaagaagagctgaaatgtcaggaacaaaaagaagaacagctgc
aggaaggggtgcaccggaaggagccccagggggccacgtagcag