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Related to Introns: Exons


A segment of a gene situated between exons that is removed before translation of messenger RNA and does not function in coding for protein synthesis.

[intr(agenic), occurring within a gene (intra- + genic) + -on.]


(Genetics) biochem a stretch of DNA that interrupts a gene and does not contribute to the specification of a protein. Compare exon2
[C20: from intr(agenic) (regi)on]


(ˈɪn trɒn)

a noncoding segment in DNA that interrupts a gene-coding sequence or nontranslated sequence. Compare exon.
[1975–80; perhaps intr (o)- + -on1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.intron - sequence of a eukaryotic gene's DNA that is not translated into a protein
deoxyribonucleic acid, desoxyribonucleic acid, DNA - (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information; "DNA is the king of molecules"
coding DNA, exon - sequence of a gene's DNA that transcribes into protein structures; "exons are interspersed with introns"
References in periodicals archive ?
In adult mice brains, where FTO was thought to affect metabolic function, they discovered that the promoter that turns on FTO did not interact with obesity-associated FTO introns.
This porcine [beta]-casein gene consisted of nine exons and eight introns and was 11.
troglodytes, two introns were seen due to the presence of a non-coding exon (97% redundant).
Results: Differential distribution in number and length of exons and introns was detected in CD36 gene across seven taxa.
ABSTRACT We have designed a set of exon-primed intron-crossing (EPIC) PCR primers to amplify introns at the genes TBP and SRP54 in the Manila clam (Ruditapes philippinarum) and the grooved carpet-shell clam (R.
The presence of transposable, self-splicing group II introns in the genomes of the invading bacterium posed problems for the host organism, since its genome was soon colonized and overrun by transposons whose excision was rather slow.
Tarrytown, NY) has patented methods of creating mutations in genomic exons by inserting introns into the genomic exons via homologous recombination.
The basis for this experiment was that introns are an indicator of evolution.
Before these genes form any protein, cells cut out all the introns and splice together the remaining exons.
RNA carries coded instructions for producing the proteins our body needs for building and repairing tissues, regulating body processes and many other sections called introns.
Tandem repeats are located in introns 2 and 8 (32-bp repeats), intron 4 (27-bp repeat), and intron 13 [IVS13 + 81(CA)17-44] (8,12).