skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Molecular Toolkit for Gene Expression Control and Genome Modification in Rhodococcus opacus PD630

Journal Article · · ACS Synthetic Biology

Rhodococcus opacus PD630 is a non-model, gram-positive bacterium that possesses desirable traits for lignocellulosic biomass conversion. In particular, it has a relatively rapid growth rate, exhibits genetic tractability, produces high quantities of lipids, and can tolerate and consume toxic, lignin-derived aromatic compounds. Despite these unique, industrially relevant characteristics, R. opacus has been underutilized due to a lack of reliable genetic parts and engineering tools. In this work, we developed a molecular toolbox for reliable gene expression control and genome modification in R. opacus. To facilitate predictable gene expression, a constitutive promoter library spanning ~45-fold in output was constructed. To improve the characterization of available plasmids, the copy numbers of four heterologous and nine endogenous plasmids were determined using quantitative PCR. The molecular toolbox was further expanded by screening a previously unreported antibiotic resistance marker (HygR) and constructing a curable plasmid backbone for temporary gene expression (pB264). Furthermore, a system for genome modification was devised, and three neutral integration sites were identified using a novel combination of transcriptomic data, genomic architecture, and growth rate analysis. Finally, the first reported system for targeted, tunable gene repression in Rhodococcus was developed by utilizing CRISPR interference (CRISPRi). Overall, this work greatly expands the ability to manipulate and engineer R. opacus, making it a viable new chassis for bioproduction from renewable feedstocks.

Research Organization:
Washington Univ., St. Louis, MO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
SC0012705
OSTI ID:
1419636
Journal Information:
ACS Synthetic Biology, Vol. 7, Issue 2; ISSN 2161-5063
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 51 works
Citation information provided by
Web of Science

References (85)

Non-model model organisms journal June 2017
Genome and metabolic engineering in non-conventional yeasts: Current advances and applications journal September 2017
Challenges and Advances for Genetic Engineering of Non-model Bacteria and Uses in Consolidated Bioprocessing journal October 2017
The importance of sourcing enzymes from non-conventional fungi for metabolic engineering and biomass breakdown journal November 2017
Review of US and EU initiatives toward development, demonstration, and commercialization of lignocellulosic biofuels journal August 2013
The new forestry biofuels sector journal January 2008
Opportunities and challenges in biological lignin valorization journal December 2016
Comparative transcriptomics elucidates adaptive phenol tolerance and utilization in lipid-accumulating Rhodococcus opacus PD630 journal February 2016
Methods in Lignin Chemistry book January 1992
Formation of intracytoplasmic lipid inclusions by Rhodococcus opacus strain PD630 journal June 1996
Tolerance and adaptive evolution of triacylglycerol-producing Rhodococcus opacus to lignocellulose-derived inhibitors journal January 2015
Comparative and Functional Genomics of Rhodococcus opacus PD630 for Biofuels Development journal September 2011
Development of Chemical and Metabolite Sensors for Rhodococcus opacus PD630 journal June 2017
Microbial tolerance engineering toward biochemical production: from lignocellulose to products journal October 2014
Rapid metabolic analysis of Rhodococcus opacus PD630 via parallel 13 C-metabolite fingerprinting journal September 2015
Microbial production of fatty acid-derived fuels and chemicals journal December 2013
Metabolic engineering strategies to bio-adipic acid production journal June 2017
Biological Production of Muconic Acid via a Prokaryotic 2,3-Dihydroxybenzoic Acid Decarboxylase journal July 2014
Adipic acid production from lignin journal January 2015
Metabolic engineering of yeast to produce fatty acid-derived biofuels: bottlenecks and solutions journal June 2015
Integration of heterogeneous and biochemical catalysis for production of fuels and chemicals from biomass journal June 2017
Engineering xylose metabolism in triacylglycerol-producing Rhodococcus opacus for lignocellulosic fuel production journal January 2013
Establishment of Cellobiose Utilization for Lipid Production in Rhodococcus opacus PD630 journal February 2013
Engineering l-arabinose metabolism in triacylglycerol-producing Rhodococcus opacus for lignocellulosic fuel production journal July 2015
Rewiring neutral lipids production for the de novo synthesis of wax esters in Rhodococcus opacus PD630 journal October 2017
Sensitive cells: enabling tools for static and dynamic control of microbial metabolic pathways journal December 2015
Saccharification of Cellulose by Recombinant Rhodococcus opacus PD630 Strains journal June 2013
Direct Combinatorial Pathway Optimization journal October 2016
Design, construction and characterisation of a synthetic promoter library for fine-tuned gene expression in actinomycetes journal September 2013
Controlling gene expression in mycobacteria with anhydrotetracycline and Tet repressor journal January 2005
Quantitative analysis of gene expression with an improved green fluorescent protein: Analysis of gene expression with gfp+ journal March 2000
Systematic Identification of a Panel of Strong Constitutive Promoters from Streptomyces albus journal April 2015
Genome-wide identification and evaluation of constitutive promoters in streptomycetes journal October 2015
The construction of a library of synthetic promoters revealed some specific features of strong Streptomyces promoters journal January 2011
Integrated omics study delineates the dynamics of lipid droplets in Rhodococcus opacus PD630 journal October 2013
Biodegradation and Rhodococcus – masters of catabolic versatility journal June 2005
Sequence analysis of three plasmids harboured in Rhodococcus erythropolis strain PR4 journal February 2006
The terminal structures of linear plasmids from Rhodococcus opacus journal May 1998
Linear plasmids and their replication journal June 2013
IIIegitimate integration of non-replicative vectors in the genome of Rhodococcus fascians upon electro-transformation as an insertional mutagenesis system journal September 1991
Recombineering in Mycobacterium tuberculosis journal December 2006
Absolute and relative QPCR quantification of plasmid copy number in Escherichia coli journal May 2006
Creation and characterisation of a high-copy-number version of the pAL5000 mycobacterial replicon journal November 2007
Altering the genome by homologous recombination journal June 1989
Oxygen-responsive genetic circuits constructed in Synechocystis sp. PCC 6803 : Oxygen-Responsive Gene Circuits for journal September 2015
Cyanobacterial carbon metabolism: Fluxome plasticity and oxygen dependence: Cyanobacterial Carbon Metabolism journal March 2017
Physical, chemical, and metabolic state sensors expand the synthetic biology toolbox for Synechocystis sp. PCC 6803 : New Sensors for journal March 2017
Identification of gene disruptions for increased poly-3-hydroxybutyrate accumulation in Synechocystis PCC 6803 journal July 2009
Highly Efficient In Vitro Site-Specific Recombination System Based on Streptomyces Phage φBT1 Integrase journal October 2008
Development of Next Generation Synthetic Biology Tools for Use in Streptomyces venezuelae journal September 2016
New Applications for Phage Integrases journal July 2014
RecE/RecT and Redα/Redβ initiate double-stranded break repair by specifically interacting with their respective partners journal August 2000
Standardized Markerless Gene Integration for Pathway Engineering in Yarrowia lipolytica journal November 2016
Fine-Tuning of Photoautotrophic Protein Production by Combining Promoters and Neutral Sites in the Cyanobacterium Synechocystis sp. Strain PCC 6803 journal July 2015
Improving a Synechocystis -based photoautotrophic chassis through systematic genome mapping and validation of neutral sites journal October 2015
Functional variation and evolution of non-coding DNA journal December 2006
Establishment of a gene transfer system for Rhodococcus opacus PD630 based on electroporation and its application for recombinant biosynthesis of poly(3-hydroxyalkanoic acids) journal October 1999
High efficiency transformation of E.coli by high voltage electroporation journal July 1988
Chromosome position effects on gene expression in Escherichia coli K-12 journal September 2014
Rapid and Efficient One-Step Metabolic Pathway Integration in E. coli journal April 2016
Effect of Genome Position on Heterologous Gene Expression in Bacillus subtilis : An Unbiased Analysis journal May 2016
Design, construction and characterization of a set of insulated bacterial promoters journal September 2010
Insulated transcriptional elements enable precise design of genetic circuits journal July 2017
CRISPR interference (CRISPRi) for sequence-specific control of gene expression journal October 2013
Repurposing CRISPR as an RNA-Guided Platform for Sequence-Specific Control of Gene Expression journal February 2013
Artificial antisense RNAs silence lacZ in E. coli by decreasing target mRNA concentration journal August 2008
Development of Design Rules for Reliable Antisense RNA Behavior in E. coli journal July 2016
Programmable transcriptional repression in mycobacteria using an orthogonal CRISPR interference platform journal February 2017
Gene silencing by CRISPR interference in mycobacteria journal February 2015
Corynebacterium glutamicum Metabolic Engineering with CRISPR Interference (CRISPRi) journal February 2016
Enabling Graded and Large-Scale Multiplex of Desired Genes Using a Dual-Mode dCas9 Activator in Saccharomyces cerevisiae journal June 2017
CRISPR interference-guided multiplex repression of endogenous competing pathway genes for redirecting metabolic flux in Escherichia coli journal November 2017
A One Pot, One Step, Precision Cloning Method with High Throughput Capability journal November 2008
Enzymatic assembly of DNA molecules up to several hundred kilobases journal April 2009
Functional analysis of pAL5000, a plasmid from Mycobacterium fortuitum: construction of a "mini" mycobacterium-Escherichia coli shuttle vector. journal January 1990
Molecular analysis and characterization of a broad-host-range plasmid, pEP2. journal January 1994
Plasmid pGA1 from Corynebacterium glutamicum codes for a gene product that positively influences plasmid copy number. journal January 1997
The DNA sequence and minimal replicon of the Corynebacterium glutamicum plasmid pSR1: evidence of a common ancestry with plasmids from C. diphtheriae journal August 1993
Cloning and Sequencing of the Gene which Encodes the Highly Inducible Acetamidase of Mycobacterium Smegmatis journal March 1993
Escherichia coli-mycobacteria shuttle vectors for operon and gene fusions to lacZ: the pJEM series. journal January 1994
Isolation and characterization of efficient plasmid transformation mutants of Mycobacterium smegmatis journal November 1990
Efficient Electrotransformation of Corynebacterium diphtheriae with a Mini-Replicon Derived from the Corynebacterium glutamicum Plasmid pGA1 journal November 2002
Isolation and characterization of the Rhodococcus opacus thiostrepton-inducible genes tipAL and tipAS : application for recombinant protein expression in Rhodococcus journal August 2004
Host-vector system for phenol-degrading Rhodococcus erythropolis based on Corynebacterium plasmids journal February 2003
The Ralstonia eutropha H16 phasin PhaP1 is targeted to intracellular triacylglycerol inclusions in Rhodococcus opacus PD630 and Mycobacterium smegmatis mc2155, and provides an anchor to target other proteins journal November 2006

Cited By (9)

Impact of CRISPR interference on strain development in biotechnology journal January 2020
Development of Rhodococcus opacus as a chassis for lignin valorization and bioproduction of high-value compounds journal August 2019
Biotransformation of lignin: Mechanisms, applications and future work journal October 2019
Antibiotic resistance genes in the Actinobacteria phylum journal June 2019
A biocatalyst for sustainable wax ester production: re-wiring lipid accumulation in Rhodococcus to yield high-value oleochemicals journal January 2019
Selection of stable reference genes for RT-qPCR in Rhodococcus opacus PD630 journal April 2018
Lipid metabolism of phenol-tolerant Rhodococcus opacus strains for lignin bioconversion journal December 2018
Development of a genetic toolset for the highly engineerable and metabolically versatile Acinetobacter baylyi ADP1 journal April 2020
Synthetic Oligonucleotides Inhibit CRISPR-Cpf1-Mediated Genome Editing journal December 2018