Lexic.us

Definition of Transposon

1. Noun. A segment of DNA that can become integrated at many different sites along a chromosome (especially a segment of bacterial DNA that can be translocated as a whole).

Definition of Transposon

1. Noun. (genetics) a segment of DNA that can move to a different position within a genome ¹

¹ Source: wiktionary.com

Definition of Transposon

1. [n -S]

Medical Definition of Transposon

1. Small, mobile DNA sequences that can replicate and insert copies at random sites within chromosomes. They have nearly identical sequences at each end, oppositely oriented (inverted) repeats and code for the enzyme, transposase, that catalyses their insertion. Bacteria have two types of transposon, simple transposons that have only the genes needed for insertion and complex transposons that contain genes in addition to those needed for insertion. Eukaryotes contain two classes of mobile genetic elements, the first are like bacterial transposons in that DNA sequences move directly. The second class (retrotransposons) move by producing RNA that is transcribed, by reverse transcriptase, into DNA which is then inserted at a new site. (13 Nov 1997)

Lexicographical Neighbors of Transposon

Literary usage of Transposon

Below you will find example usage of this term as found in modern and/or classical literature:

1. Biotechnology of Algae: A Bibliography by Virginia Stone (1992)
"Comparison of various C. reinhardtii laboratory strains provided evidence that the sequence was mobile and therefore a transposon. ..."

2. Transposable Elements in Plants: Sponsored CRIS/ICAR Projects and Bibliography by Andrew Kalinski (1995)
"... suggesting that the inactivation of this gene might be caused by the insertion of the transposon like element. XAU: IGF Berlin, Berlin, FRG. ..."

3. Rice Genetics IV by Gurdev S. Khush, D. S. Brar, Bill Hardy (2001)
"The transposon inserts are therefore biased about three times higher than expected on a random basis to insert in sequences predicted to code for proteins. ..."

4. Proceedings of the Second Temperate Rice Conference by B Hardy, J E Hill (2002)
"transposon tagging is a widely used method to clone genes in a variety of plant species. In this method, a gene is recognized when it loses its function ..."

5. Biotechnology: Bioremediation: Bibliography, January 1992-May 1994 by Kim Guenther (1995)
"These transposon vectors can be delivered, by conjugation, ... To facilitate cloning into the transposon vector, the delivery vehicle has been simplified so ..."

6. Bacterial Blight of Rice: Proceedings of the International Workshop on by International Rice Research Institute (1989)
"Mutagenesis transposon (Tn) mutagenesis of bacterial genomes is a better method for obtaining mutants than chemical mutagenesis because mutants with Tn ..."

7. Biotechnology: Ti-Plasmids and Other Plan Vectors: Bibliography January 1993 by Raymond Dobert (1996)
"A nit2 mutation caused by the insertion of a transposon was identified by ... Using the Gulliver element as a probe, one of the transposon-induced nit2 ..."

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