intervening sequence


Also found in: Dictionary, Thesaurus, Legal, Acronyms, Encyclopedia.
Related to intervening sequence: lariat

in·tron

(in'tron),
A portion of DNA that lies between two exons, is transcribed into RNA, but does not appear in that mRNA after maturation because the intron is removed and the exons spliced together, and so is not expressed (as protein) in protein synthesis. By customary usage, the term is extended to the corresponding regions in the primary transcript of mRNA before maturation.
[inter- + -on]

intervening sequence

see intron.
References in periodicals archive ?
Codon 15 (G [right arrow] A), intervening sequence (intron)-I-1 (G [right arrow] T) [IVS-I-1 (G [right arrow] T)], IVS-I-5 (G [right arrow] C), Codon 8/9 (+G), and Codon 41/42 (-TCTT); two rare mutations, Codon 30 (G [right arrow] C) and IVS-I-1 (G [right arrow] A); and the mutations producing the hemoglobin variants [[beta].
Intervening sequences of regularly spaced prokaryotic repeats derive from foreign genetic elements.
Clostridium paradoxum DSM 7308T contains multiple 16S rRNA genes with heterogeneous intervening sequences.