(redirected from exonic)
Also found in: Thesaurus, Medical, Encyclopedia.


A nucleotide sequence that is found in a gene, codes information for protein synthesis, and is transcribed to messenger RNA.

[ex(pressed) + -on.]

ex·on′ic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Historical Terms) Brit one of the four officers who command the Yeomen of the Guard
[C17: a pronunciation spelling of French exempt exempt]


(Genetics) any segment of a discontinuous gene the segments of which are separated by introns. Compare intron
[C20: from ex-1 + -on]
exˈonic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈɛk sɒn)

a segment of DNA that is transcribed to RNA and specifies the sequence of a portion of protein.
[1975–80; ex(pressed sequence) + -on1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.exon - sequence of a gene's DNA that transcribes into protein structures; "exons are interspersed with introns"
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"
intron, noncoding DNA - sequence of a eukaryotic gene's DNA that is not translated into a protein
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The coding DNA sequences of different exonic regions were conceptually translated to amino acid sequences using DNAMAN software (Lynnon Biosoft, San Ramon, CA, USA).
Therefore, the present study hypothesized that variations in the ESR2 gene promoter and exonic regions may potentially cause alterations in its biological function and influence uterine leiomyoma risk.
In this case, the repeat element CAG occurs within an exonic (protein coding) portion of the HTT gene with each repeat coding for an additional glutamine residue in series in the mature Huntingtin protein.
Whole genome sequencing (WGS) can sequence the entire genome--both the coding (exonic) and noncoding (intronic) regions--while exome sequencing analyzes only the protein-coding exons, which make up 1% to 2% of the genome and about 85% of the protein-coding genes associated with known human disease.
Therefore, in the current study, we aimed to investigate whether the exonic location of the MEFV mutation has an effect on the clinical manifestation in patients with FMF
Four additional potentially interfering SNPs (rs779933798, rs757359624, rs751821844, and rs778200373) were identified in the exonic region covered by the published reverse primer.
To fill this knowledge gap, we tested the hypothesis that the TPH-2 gene exonic variant rs4290270 may be a susceptibility locus for primary insomnia in Han Chinese and further hypothesized that this variant was associated with depression symptoms in patients with primary insomnia.
All exonic regions of the MLH1 and MSH2 genes, including flanking intronic boundaries, were amplified using previously reported primers and then sequenced using the 3500 Dx Genetic Analyzer (10).
So, the whole gene was characterized including exonic and interonic regions for complete analysis of coding, non-coding and splicing regions.
Effects of intronic and exonic polymorphisms of paraoxonase l(PONl) gene on serum PON1 activity in a Korean population.
Also different from the genotypes of exonic SNPs (rs3825942, rs1048661), the TT genotype of rs2165341 was detected more frequently in pseudoexfoliation and was associated with 6-fold and 7-fold increases in risk of XFS and XFG, respectively.