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Title: Synthetic Biology Toolbox for Controlling Gene Expression in the Cyanobacterium Synechococcus sp. strain PCC 7002

The application of synthetic biology requires characterized tools to precisely control gene expression. This toolbox of genetic parts previously did not exist for the industrially promising cyanobacterium, Synechococcus sp. strain PCC 7002. To address this gap, two orthogonal constitutive promoter libraries, one based on a cyanobacterial promoter and the other ported from Escherichia coli, were built and tested in PCC 7002. The libraries demonstrated 3 and 2.5 log dynamic ranges, respectively, but correlated poorly with E. coli expression levels. These promoter libraries were then combined to create and optimize a series of IPTG inducible cassettes. The resultant induction system had a 48-fold dynamic range and was shown to out-perform P trc constructs. Finally, a RBS library was designed and tested in PCC 7002. The presented synthetic biology toolbox will enable accelerated engineering of PCC 7002.
 [1] ;  [2] ;  [1] ;  [2] ;  [2]
  1. Univ. of Wisconsin, Madison, WI (United States). Dept. of Chemical and Biological Engineering
  2. Univ. of Wisconsin, Madison, WI (United States). Dept. of Chemical and Biological Engineering. Microbiology Doctoral Training Program
Publication Date:
Grant/Contract Number:
SC0010329; EFRI-1240268; CBET-1149678; SEES 12-15871; FA9550-11-1-0038; NIGMS-5 T32 GM08349
Published Article
Journal Name:
ACS Synthetic Biology
Additional Journal Information:
Journal Volume: 4; Journal Issue: 5; Journal ID: ISSN 2161-5063
American Chemical Society (ACS)
Research Org:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23); National Science Foundation (NSF); US Air Force Office of Scientific Research (AFOSR); National Inst. of Health (NIH) (United States)
Country of Publication:
United States
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1454871