exon

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Related to Exons: RNA splicing

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 ?
We wanted to develop a comprehensive assay for FH and wanted to amplify all exons for the screening.
Haplotype construction of all SNPs in the three exons and its association with piglet diarrhea are analyzed in Table 7.
But we saw the RNA molecule flexing on its own, with the intron folding and unfolding in a way that brings the exons closer together, suggesting a more active role for introns," Nature quoted Walter as saying.
Although the sample size was small, this report suggests that exon copy number variants of CFTR is not a major mutational mechanism giving rise to CF in black and coloured southern African CF patients.
For the analysis of the COL4A4 gene, all the exons were amplified by polymerase chain reaction (PCR) using the appropriate intronic primer sets which were designed by using Primer 3 software (http://www-genome, wi.
The exon skip occurs during the intermediate phase between the gene and the protein at the moment of splicing (1), and allows production of a truncated but functional protein to be restored.
With this approach, PCR products from antigen-retrieval solution after heating histologic sections at 96 [degrees] C for 20 minutes for K-ras exons 1 and 2 and p53 exons 5 through 9 could be successfully generated for all 20 colorectal cancer cases tested.
Like all Agilent microarrays, the SurePrint G3 Exon solution delivers a wide dynamic range to detect low expressors and high expressors to accurately represent the range of expression levels and provide high confidence in the results.
PPMD's Vice President of Research, Sharon Hesterlee, PhD, discusses the importance and timeliness of this kind of funding strategy: "As results for the leading exon 51 compounds continue to appear promising, the urgency has increased to expand the technique to correct less common deletions and to develop methods for skipping multiple exons that could also be applied to some duplications, as well as deletions.
This porcine [beta]-casein gene consisted of nine exons and eight introns and was 11.
1-3, 5, 7-9, 11, and 12) presented hemizygous or heterozygous copy-number imbalances involving 1, 2, or more DMD exons (see Fig.
Characterization (total gene length, intron and exon number and length, ratio of coding nucleotides to total gene size, details of exons) of CD36 gene was done following information at the NCBI website.