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premutation. In DICTIOUS you will not only get to know all the dictionary meanings for the word
premutation, but we will also tell you about its etymology, its characteristics and you will know how to say
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English
Etymology
From pre- + mutation.
Adjective
premutation (not comparable)
- Of or relating to a premutation.
2015 July 30, “Positron Emission Tomography (PET) Quantification of GABA A Receptors in the Brain of Fragile X Patients”, in PLOS ONE, →DOI:Fragile X syndrome is caused by mutations in the FMR1-gene, which is characterized by an expansion of a CGG triplet in the 5’ UTR. Normal individuals have 6–44 CGG repeats, while carriers of gray zone or premutation alleles have 45–54 and 55–200 repeats, respectively.
Noun
premutation (plural premutations)
- A nucleotide sequence variation that is not enough to be classed as a mutation (for example, does not affect protein expression enough to produce clinical symptoms) but nonetheless represents an unusual variant that is predisposed to still greater variation in future cell divisions (that is, predisposed to leading to a mutation).
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