Journal
NATURE METHODS
Volume 10, Issue 7, Pages 659-+Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/NMETH.2515
Keywords
-
Categories
Funding
- Life Technologies
- US National Science Foundation Synthetic Biology Engineering Research Center (SynBERC)
- PhRMA Foundation
Ask authors/readers for more resources
Large genetic engineering projects require more cistrons and consequently more strong and reliable transcriptional terminators. We have measured the strengths of a library of terminators, including 227 that are annotated in Escherichia coli-90 of which we also tested in the reverse orientation-and 265 synthetic terminators. Within this library we found 39 strong terminators, yielding >50-fold reduction in downstream expression, that have sufficient sequence diversity to reduce homologous recombination when used together in a design. We used these data to determine how the terminator sequence contributes to its strength. The dominant parameters were incorporated into a biophysical model that considers the role of the hairpin in the displacement of the U-tract from the DNA. The availability of many terminators of varying strength, as well as an understanding of the sequence dependence of their properties, will extend their usability in the forward design of synthetic cistrons.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available