Abstract
A complex array of activator and repressor elements located within 669 bp proximal to the fushi tarazu (ftz) transcriptional start site is sufficient to generate the "zebra-stripe" expression pattern characteristic of the ftz gene. P-element-mediated transformation and ftz promoter/lacZ fusion genes were used to characterize, in detail, several of these transcriptional control elements. By reconstructing promoters with synthetic oligonucleotides containing cis-regulators of stripe expression, we show that these regulatory sites can function as independent units to direct position-specific transcription in the Drosophila embryo. In particular, we demonstrate that multiple copies of a positive regulatory site can mediate expression in both the odd- and even-numbered parasegments throughout most of the germ band and that negative regulatory sites can transform a continuous pattern of gene expression into discrete stripes. The reconstructed promoter system presented provides an effective means of studying molecular mechanisms governing spatially restricted transcription in the early embryo.
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Dates
Type | When |
---|---|
Created | 18 years, 2 months ago (June 5, 2007, 5:15 p.m.) |
Deposited | 3 years, 9 months ago (Nov. 13, 2021, 11:19 p.m.) |
Indexed | 1 year, 8 months ago (Dec. 2, 2023, 7:38 p.m.) |
Issued | 34 years, 4 months ago (May 1, 1991) |
Published | 34 years, 4 months ago (May 1, 1991) |
Published Online | 34 years, 4 months ago (May 1, 1991) |
Published Print | 34 years, 4 months ago (May 1, 1991) |
@article{Topol_1991, title={Synthetic oligonucleotides recreate Drosophila fushi tarazu zebra-stripe expression.}, volume={5}, ISSN={1549-5477}, url={http://dx.doi.org/10.1101/gad.5.5.855}, DOI={10.1101/gad.5.5.855}, number={5}, journal={Genes & Development}, publisher={Cold Spring Harbor Laboratory}, author={Topol, J and Dearolf, C R and Prakash, K and Parker, C S}, year={1991}, month=may, pages={855–867} }