Related Experiment Video
Updated: Jul 29, 2026

Investigating the Function of Coronin A in the Early Starvation Response of Dictyostelium discoideum by Aggregation Assays
Published on: June 18, 2016
An unusual transposon encoding heat shock inducible and developmentally regulated transcripts in Dictyostelium
Abstract:
We have isolated and characterized a transposable element from Dictyostelium discoideum denoted Tdd-1. There are approximately 50 complete copies of the element per haploid genome and approximately 100-150 partial elements. Southern blots of DNA from different Dictyostelium discoideum strains show that Tdd-1 is a mobile element. Tdd-1 is 4.9 kb long, with 313 bp inverted repeats. These repeats lie near the termini, but unlike other transposable elements one end of Tdd-1 extends 36 bp past the repeat and the other extends 1 bp. Tdd-1 encodes a series of developmentally regulated transcripts, all with the same polarity, that increase dramatically in abundance after approximately 10 hr of development. We have also identified a heat shock inducible transcript of the opposite polarity.
Related Concept Videos
DNA-only Transposons
The donor site from where the transposon is excised is either degraded or...
LTR Retrotransposons
The internal coding region of LTR retrotransposons and their mechanism of transposition closely resembles a...
Prokaryotic Transcriptional Activators and Repressors
Transcription of prokaryotic...
Exon Recombination
Exon shuffling follows “splice frame rules.” Each exon has three reading...
Prokaryotic Transcriptional Activators and Repressors
Transcription of prokaryotic...
Transposons

