Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Comparative genomics of metabolic capacities of regulons controlled by cis-regulatory RNA motifs in bacteria

Journal Article · · BMC Genomics
 [1];  [2];  [3];  [4];  [5];  [2]
  1. Univ. of California, San Diego, CA (United States). Division of Biological Sciences. Dept. of Molecular Biology; DOE/OSTI
  2. Sanford-Burnham Medical Research Inst., La Jolla, CA (United States); Russian Academy of Sciences (RAS), Moscow (Russian Federation). Inst. for Information Transmission Problems (IITP)
  3. Russian Academy of Sciences (RAS), Moscow (Russian Federation). Inst. for Information Transmission Problems (IITP)
  4. Univ. of California, San Diego, CA (United States). Division of Biological Sciences. Dept. of Molecular Biology
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Background: In silico comparative genomics approaches have been efficiently used for functional prediction and reconstruction of metabolic and regulatory networks. Riboswitches are metabolite-sensing structures often found in bacterial mRNA leaders controlling gene expression on transcriptional or translational levels. An increasing number of riboswitches and other cis-regulatory RNAs have been recently classified into numerous RNA families in the Rfam database. High conservation of these RNA motifs provides a unique advantage for their genomic identification and comparative analysis. Results: A comparative genomics approach implemented in the RegPredict tool was used for reconstruction and functional annotation of regulons controlled by RNAs from 43 Rfam families in diverse taxonomic groups of Bacteria. The inferred regulons include ~5200 cis-regulatory RNAs and more than 12000 target genes in 255 microbial genomes. All predicted RNA-regulated genes were classified into specific and overall functional categories. Analysis of taxonomic distribution of these categories allowed us to establish major functional preferences for each analyzed cis-regulatory RNA motif family. Overall, most RNA motif regulons showed predictable functional content in accordance with their experimentally established effector ligands. Our results suggest that some RNA motifs (including thiamin pyrophosphate and cobalamin riboswitches that control the cofactor metabolism) are widespread and likely originated from the last common ancestor of all bacteria. However, many more analyzed RNA motifs are restricted to a narrow taxonomic group of bacteria and likely represent more recent evolutionary innovations. Conclusions: The reconstructed regulatory networks for major known RNA motifs substantially expand the existing knowledge of transcriptional regulation in bacteria. The inferred regulons can be used for genetic experiments, functional annotations of genes, metabolic reconstruction and evolutionary analysis. The obtained genome-wide collection of reference RNA motif regulons is available in the RegPrecise database (http://regprecise.lbl.gov/).

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC02-05CH11231; SC0004999
OSTI ID:
1626422
Journal Information:
BMC Genomics, Journal Name: BMC Genomics Journal Issue: 1 Vol. 14; ISSN 1471-2164
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

References (53)

Mechanism and Distribution of glmS Ribozymes book January 2012
An RNA Sensor for Intracellular Mg2+ journal April 2006
A Decade of Riboswitches journal January 2013
The T box mechanism: tRNA as a regulatory molecule journal November 2009
The riboswitch control of bacterial metabolism journal January 2004
Riboswitches: the oldest mechanism for the regulation of gene expression? journal January 2004
Comparative Genomic Reconstruction of Transcriptional Regulatory Networks in Bacteria journal July 2007
Comparative Genomics of the Vitamin B 12 Metabolism and Regulation in Prokaryotes journal July 2003
Infernal 1.0: inference of RNA alignments journal March 2009
UniProt Knowledgebase: a hub of integrated protein data journal January 2011
RNA sequence analysis using covariance models journal January 1994
Regulation of riboflavin biosynthesis and transport genes in bacteria by transcriptional and translational attenuation journal July 2002
Regulation of lysine biosynthesis and transport genes in bacteria: yet another RNA riboswitch? journal December 2003
Comparative genomics of the methionine metabolism in Gram-positive bacteria: a variety of regulatory systems journal June 2004
RibEx: a web server for locating riboswitches and other conserved bacterial regulatory elements journal July 2005
The Subsystems Approach to Genome Annotation and its Use in the Project to Annotate 1000 Genomes journal September 2005
Identification of 22 candidate structured RNAs in bacteria using the CMfinder comparative genomics pipeline journal July 2007
RegPrecise: a database of curated genomic inferences of transcriptional regulatory interactions in prokaryotes journal October 2009
MicrobesOnline: an integrated portal for comparative and functional genomics journal November 2009
RegPredict: an integrated system for regulon inference in prokaryotes by comparative genomics approach journal June 2010
Rfam 11.0: 10 years of RNA families journal November 2012
RegPrecise web services interface: programmatic access to the transcriptional regulatory interactions in bacteria reconstructed by comparative genomics journal June 2012
Eukaryotic TPP riboswitch regulation of alternative splicing involving long-distance base pairing journal February 2013
New insights into riboswitch regulation mechanisms: New riboswitch regulation mechanisms journal April 2011
Genomic Reconstruction of the Transcriptional Regulatory Network in Bacillus subtilis journal March 2013
A Novel Class of Modular Transporters for Vitamins in Prokaryotes journal October 2008
Biochemical Features and Functional Implications of the RNA-Based T-Box Regulatory Mechanism journal March 2009
Regulation of Bacterial gene Expression by Riboswitches journal October 2005
Abundance and functional diversity of riboswitches in microbial communities journal January 2007
An in silico analysis of T-box regulated genes and T-box evolution in prokaryotes, with emphasis on prediction of substrate specificity of transporters journal January 2008
The distributions, mechanisms, and structures of metabolite-binding riboswitches journal January 2007
Comparative genomics reveals 104 candidate structured RNAs from bacteria, archaea, and their metagenomes journal January 2010
Computational identification of riboswitches based on RNA conserved functional sequences and conformations journal May 2009
RNA-based regulation of genes of tryptophan synthesis and degradation, in bacteria journal June 2007
Chemical basis of glycine riboswitch cooperativity journal November 2007
Comparative genomic analysis of T-box regulatory systems in bacteria journal February 2008
RNA structures regulating ribosomal protein biosynthesis in bacilli journal July 2013
Challenges of ligand identification for riboswitch candidates journal January 2011
Comparative Genomic Reconstruction of Transcriptional Regulatory Networks in Bacteria journal November 2007
Attenuation regulation of amino acid biosynthetic operons in proteobacteria: comparative genomics analysis journal May 2004
Comparative Genomics of Thiamin Biosynthesis in Procaryotes: NEW GENES AND REGULATORY MECHANISMS journal October 2002
Comparative Genomics of the Vitamin B 12 Metabolism and Regulation in Prokaryotes journal July 2003
Infernal 1.0: inference of RNA alignments journal June 2009
Rfam: updates to the RNA families database journal January 2009
KEGG for integration and interpretation of large-scale molecular data sets journal November 2011
Most RNAs regulating ribosomal protein biosynthesis in Escherichia coli are narrowly distributed to Gammaproteobacteria journal February 2013
Riboswitches: Structures and Mechanisms journal October 2010
Riboswitches and the RNA World journal November 2010
Elucidating metabolic pathways and digging for genes of unknown function in microbial communities: the riboswitch approach journal July 2012
Attenuation regulation of amino acid biosynthetic operons in proteobacteria: comparative genomics analysis journal May 2004
Genomic Reconstruction of the Transcriptional Regulatory Network in Bacillus subtilis journal March 2013
A Novel Class of Modular Transporters for Vitamins in Prokaryotes journal October 2008
Biochemical Features and Functional Implications of the RNA-Based T-Box Regulatory Mechanism journal March 2009

Cited By (18)

Phylogenomic and comparative analysis of the distribution and regulatory patterns of TPP riboswitches in fungi journal April 2018
A novel bifunctional transcriptional regulator of riboflavin metabolism in Archaea journal January 2017
RegPrecise 3.0 – A resource for genome-scale exploration of transcriptional regulation in bacteria journal January 2013
Single nucleotide resolution RNA-seq uncovers new regulatory mechanisms in the opportunistic pathogen Streptococcus agalactiae journal May 2015
In silico prediction and expression profile analysis of small non-coding RNAs in Herbaspirillum seropedicae SmR1 journal February 2020
Contribution of riboflavin supply pathways to Vibrio cholerae in different environments journal November 2017
Regulatory context drives conservation of glycine riboswitch aptamers journal December 2019
Comparative Genomics of Transcriptional Regulation of Methionine Metabolism in Proteobacteria journal November 2014
Extensive Identification of Bacterial Riboflavin Transporters and Their Distribution across Bacterial Species journal May 2015
Overview on the Bacterial Iron-Riboflavin Metabolic Axis journal July 2018
Discovery of novel bacterial queuine salvage enzymes and pathways in human pathogens journal September 2019
Overlapping riboflavin supply pathways in bacteria journal November 2016
Regulatory context drives conservation of glycine riboswitch aptamers posted_content January 2019
Genome-wide transcription start site mapping of Bradyrhizobium japonicum grown free-living or in symbiosis – a rich resource to identify new transcripts, proteins and to study gene regulation journal April 2016
Differential regulation of riboflavin supply genes in Vibrio cholerae journal February 2017
Riboswitch diversity and distribution journal April 2017
Genome-wide transcription start site mapping of Bradyrhizobium japonicum grown free-living or in symbiosis - a rich resource to identify new transcripts, proteins and to study gene regulation text January 2016
Genome-wide transcription start site mapping of Bradyrhizobium japonicum grown free-living or in symbiosis – a rich resource to identify new transcripts, proteins and to study gene regulation text January 2016

Similar Records

RegPrecise 3.0 – A resource for genome-scale exploration of transcriptional regulation in bacteria
Journal Article · Mon Dec 31 23:00:00 EST 2012 · BMC Genomics · OSTI ID:1626423

Comparative genomics and evolution of regulons of the LacI-family transcription factors
Journal Article · Wed Jun 11 00:00:00 EDT 2014 · Frontiers in Microbiology · OSTI ID:1628110

Genomic reconstruction of transcriptional regulatory networks in lactic acid bacteria
Journal Article · Mon Dec 31 23:00:00 EST 2012 · BMC Genomics · OSTI ID:1626426