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intron
(redirected from Introns)

    Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
intron /in·tron/ (in´tron) a noncoding sequence between two coding sequences within a gene, processed out in the formation of mature mRNA.
in·tron (ntrn)
n.
A segment of a gene situated between exons that does not function in coding for protein synthesis.
intron
[in′tron]
Etymology: L, intra, within, regin, region
a sequence of nucleotides in eukaryotic DNA that does not code for amino acids and interrupts the coding sequence of a gene. Some genes contain numerous long introns. Compare exon.
intron
untranslated, intervening sequences that are interspersed between coding sequences of a particular gene of almost all eukaryocytic genes and which are excised from the primary RNA transcript to yield mRNA.
intron-exon junction
introns are removed by the catalytic action of small nuclear riboproteins (snRNPs) which bind to special recognition sequences at the 5,(donor junction) and 3,(receptor junction) to form a complex called a spliceosome.
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Although programs for splice site and gene structure recognition have reached a high level of performance on internal coding exons, standard splice sites might not be sufficient for defining introns in the genomes [28].
Analysis and prediction of exon, intron, intergenic region and splice ... by Lin, Hao; Li, Qian-Zhong; Chen, Cui-Xia / Journal of Biomedical Science and Engineering (JBiSE)
Two chloroplast intergenic spacers (trnL-trnF and trnS-rps4 IGS) and one mitochondrial intron (had5 intron 2), which have been frequently used for phylogenetic analysis at lower taxonomic levels, were employed to reveal maternal history, while introns of the single-copy nuclear gene pgiC (including introns 14 and 15, and exon 15) were used to observe bi-parental inheritance.
Molecular evidence for genetic heterogeneity and the hybrid origin of ... by Chang, Ho-Ming; Chiou, Wen-Liang; Wang, Jenn-Che / American Fern Journal
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.
Polymorphisms at three introns in the Manila clam (Ruditapes ... by Cordero, David; Pena, Juan B.; Saavedra, Carlos / Journal of Shellfish Research
 
 
 
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