Geno
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Mag
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Summary
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(TCT;TCT)
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0.5
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Homozygous for F508C variant of cystic fibrosis gene; benign
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(TTT;TCT)
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0.5
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Heterozygous for F508C variant of cystic fibrosis gene; benign
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(TTT;TTT)
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0
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normal form
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rs332 is *not* the delta F508 mutation that causes cystic fibrosis. That mutation is also known as rs113993960 and i3000001
delta F508 deletes the CTT that is one basepair upstream of the TTT/TCT in rs332.
rs332(TTT), i.e. 3 T's, is the normal allele. rs332(TCT) is a variation known as F508C, representing a benign change in amino acid 508 from phenylalanine to cysteine.OMIM[PMID 1977306
]