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 ?
By sequence analysis of all the PAH gene exons and its surrounding sequences in this family, it showed a duplication (insertion) of one adenine nucleotide in the exon 3 at position 335-336 of the cDNA, for homozygous in the patient, and for heterozygous in her parents.
15) To better characterize this effect of RSV, we sought to determine its differential effects on the expression of exons I, III, and IV and the common exon IX of the BDNF gene in the hippocampi of adult rats.
PCR-RFLP reaction conditions used for digesting the different exons of FASN gene.
fragment I (206 bp: full exon 1), fragment II (296 bp: partial intron 1), fragment III (287 bp: full exon 2), fragment IV (227 bp: partial intron 2 and full exon 3), fragment V (226 bp: partial intron 3), fragment VI (201 bp: initial partial exon 4) and fragment VII (405 bp: remaining partial exon 4) of [[beta].
Using RNA from SH-SY5Y cells, primers targeted to exons 15/16 did not amplify, while primers for exons 17/18, 18/19, and 19/20 amplified to an intermediate level, as compared to exons 21/22 and 24/25 (P < 0.
Primary resistance to imatinib is seen with the most common PDGFRA exon 18 D842V mutation.
For initial testing of skipping of exon 8, the cDNA was amplified using a forward primer from exon 7, 5'-AACAGACAGCTTTGAGTGACA-3', and a reverse primer from exon 10, 5'- ATCCCAAACCTTTCTGTATCT-3'.
Various studies from India and abroad have documented deletions in the main "hot spot" region between exons 45-53 in majority of cases.
The patient's tumor was genotyped on the Ion AmpliSeq[TM] Cancer Hotspot Panel v2 and was found to harbor an epidermal growth factor receptor (EGFR) [4] exon 20 9-bp insertion (c.
Haplotype construction of all SNPs in the three exons and its association with piglet diarrhea are analyzed in Table 7.
The EDTA sample was used for LDL genotyping for the detection of mutation in different exons and PCR was performed.
The aim of this study was therefore to look for the CFTR mutations reported as the most common in other populations--those located in exons 10, 11, 19, 20 y 21--in Venezuelan patients with a clinical diagnosis of CF, who are in the National CF Program.