exon

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ex·on

(ek'son),
A portion of DNA that codes for a section of the mature messenger RNA obtained from that DNA, and is therefore expressed ("translated" into protein) at the ribosome.
[ex- + on]

exon

/ex·on/ (ek´son) the coding region in a gene.

exon

(ĕk′sŏn)
n.
A nucleotide sequence that is found in a gene, codes information for protein synthesis, and is transcribed to messenger RNA.

ex·on′ic adj.

exon

[ek′son]
Etymology: Gk, exo + genein, to produce
the part of a DNA molecule that contains the code for the final messenger RNA. Compare intron.

ex·on

(ek'son)
A portion of a DNA that codes for a section of the mature messenger RNA from that DNA, and is therefore expressed ("translated" into protein) at the ribosome.
[ex- + on]

exon

The segment of deoxyribonucleic acid (DNA) in a gene that codes for some part of the messenger ribonucleic acid (RNA). Any segment that is represented in the RNA product. Segments that do not code for RNA are called introns.

exon

or

extron

(‘ex'for expressed) or - the DNA segments of an INTERRUPTED split gene that are transcribed into RNA and then into the gene product. Exons occur along the length of the gene, and are separated by segments called INTRONS whose sequences are also transcribed into RNA. The intron RNA segments are then excised, leaving behind the exon RNA segments that join up to form a functional RNA molecule, a process called RNA SPLICING.

exon

regions of a primary RNA transcript in eukaryotic cells that are coding and are joined together when introns are spliced-out, to make the functional mRNA.
References in periodicals archive ?
Owing to the limitations of the mPCR method, all samples were retested for exonic rearrangements using the MLPA (PO34 and P035 probe mixes (MRC-Holland, Netherlands).
In this study, the relationships between exonic SNPs of THRSP gene, fatty acids, and carcass traits were examined for Korean cattle.
However, we did identify a novel genetic variant, T2562C (one heterozygous carrier), and we verified five previously reported polymorphisms--three exonic (Ala140Asp, Glu155del, and Glu208Lys), and two intronic (A2207G and a GGC deletion at 2609).
Exonic expression profiling of breast cancer and benign lesions: a retrospective analysis.
The results of our study demonstrate that four polymorphisms (two in the 3' UTR, one exonic, and one intronic) in the NOV gene are associated with LW, CW, and/or BF.
In the present study, nucleotide variations were found in exonic regions of two isolates from Jagadalpur (J5 and J9) and presently it is difficult to infer what kind of phenotypic changes these might confer, at least in relation to drug sensitivity.
For key genes more thorough interrogation requires exonic, intronic, and regulatory SNPs.
The amplified regions, including the regulatory region (2,000 bp upstream of the exon 1), all exonic and flanking intronic regions, were detected by DNA pooling sequencing assays in the CD4 gene.
Disruption of an SF2/ASF-dependent exonic splicing enhancer in SMN2 causes spinal muscular atrophy in the absence of SMN1.
trans-acting factors, other PON1 polymorphisms including intronic and exonic splice enhancing sequences) that influence PON1 expression.
Together they have established a reputation as being among the world's experts in the prediction of exonic sequence and gene structure.
To detect larger rearrangements, including exonic deletions, a quantitative method like multiplex ligation-dependent probe amplification (MLPA) is essential.