Meanings
plural exitrons
- biologyOne of a set of alternatively spliced internal regions of protein-coding exons.
Therefore, in what ways might the processing and regulation of exitron splicing differ from that of conventional introns?
2015 July 7, Dorothee Staiger, Gordon G. Simpson, “Enter exitrons”, in Genome Biology, volume 16, →DOI1 more example
On the basis of their exonic and intronic nature, here we name them exitrons (exonic introns [EIs]) and define them as alternatively spliced internal regions of protein-coding exons
2015 May 1, Marquez Y, Höpfler M, Ayatollahi Z, Barta A, Kalyna M, “Unmasking alternative splicing inside protein-coding exons defines exitrons and their role in proteome plasticity”, in Genome Research, volume 25, number 7, →DOI, pages 995–1007
Origin
Blend of exon + intron (approximately).
Full word history & related roots →Cite this entry
exitron. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/exitron
“exitron.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/exitron. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “exitron,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/exitron.
Source: exitron on Wiktionary, CC BY-SA 4.0.