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Title: Hybrid phenolic-inducible promoters towards construction of self-inducible systems for microbial lignin valorization

Journal Article · · Biotechnology for Biofuels
 [1];  [2];  [2];  [2];  [2];  [3]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States); Arizona State Univ., Tempe, AZ (United States)
  2. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
  3. Sandia National Lab. (SNL-CA), Livermore, CA (United States); Joint Bioenergy Institute, Emeryville, CA (United States); Univ. of Minnesota, St. Paul, MN (United States)

Engineering strategies to create promoters that are both higher strength and tunable in the presence of inexpensive compounds are of high importance to develop metabolic engineering technologies that can be commercialized. Lignocellulosic biomass stands out as the most abundant renewable feedstock for the production of biofuels and chemicals. However, lignin a major polymeric component of the biomass is made up of aromatic units and remains as an untapped resource. Novel synthetic biology tools for the expression of heterologous proteins are critical for the effective engineering of a microbe to valorize lignin. Furthermore, this study demonstrates the first successful attempt in the creation of engineered promoters that can be induced by aromatics present in lignocellulosic hydrolysates to increase heterologous protein production.

Research Organization:
Sandia National Laboratories (SNL-CA), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1473958
Alternate ID(s):
OSTI ID: 1332660; OSTI ID: 1618726
Report Number(s):
SAND--2018-9919J; 667754
Journal Information:
Biotechnology for Biofuels, Journal Name: Biotechnology for Biofuels Journal Issue: 1 Vol. 11; ISSN 1754-6834
Publisher:
BioMed CentralCopyright Statement
Country of Publication:
United States
Language:
English

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Recent advances in lignin valorization with bacterial cultures: microorganisms, metabolic pathways, and bio-products journal February 2019
Genetically encoded biosensors for lignocellulose valorization journal October 2019
Biotransformation of lignin: Mechanisms, applications and future work journal October 2019
Genetically encoded biosensors for lignocellulose valorization journal October 2019
Directed evolution of the PcaV allosteric transcription factor to generate a biosensor for aromatic aldehydes journal November 2019