Also found in: Medical.


 (trī-no͞o′klē-ə-tīd′, -nyo͞o′-)
A triplet of nucleotides; a codon.


(Biochemistry) a combination of three nucleotides


(traɪˈnu kli əˌtaɪd, -ˈnyu-)

three linked nucleotides; triplet.
References in periodicals archive ?
In HD, the gene that encodes for the HTT protein contains a trinucleotide sequence that is repeated in the gene more than 36 times.
HTT contains a trinucleotide repeat of cytosine-adenine-guanine (CAG) base pairs.
This range of 25 "repeat numbers" for a trinucleotide repeat element would lead to a 75-base pair range (i.
However, no TCA/TCG/TCT trinucleotide repeats were seen in the 5' region of the gp60 gene of C.
Carlsbad, CA) in 2 enrichment mixtures: a trinucleotide mix (AAC, AAG, AAT, ACT, ATC) and a tetranucleotide mix number (AAAC, AAAG, AATC, AATG, ACAG, ACCT, ACTC, ACTG).
54) This has been especially useful when assessing the accuracy of trinucleotide repeat sizing.
Myotonic dystrophy type 1 (MD1) has been identified as an autosomal dominant disorder associated with the presence of an abnormal expression of a cytosine-thymine-guanine trinucleotide repeat on chromosome 19ql3.
Magical ability could be explained by a single autosomal dominant gene if it is caused by an expansion of trinucleotide repeats with non-Mendelian ratios of inheritance," she wrote.
The microsatellites with tetra- and trinucleotide repeats were easier to score than those with dinucleotide repeats, primarily because more stutter was observed within the dinucleotides.
The promoter of this gene contains a variable number of the trinucleotide repeat CGG.