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

Identification of genetic interactions with priB links the PriA/PriB DNA replication restart pathway to double-strand DNA break repair in Escherichia coli

Journal Article · · G3
 [1];  [2];  [2];  [2];  [3]
  1. Univ. of Wisconsin School of Medicine and Public Health, Madison, WI (United States); University of Wisconsin School of Medicine and Public Health Department of Biomolecular Chemistry
  2. Univ. of Wisconsin, Madison, WI (United States)
  3. Univ. of Wisconsin School of Medicine and Public Health, Madison, WI (United States)
Collisions between DNA replication complexes (replisomes) and impediments such as damaged DNA or proteins tightly bound to the chromosome lead to premature dissociation of replisomes at least once per cell cycle in Escherichia coli. Left unrepaired, these events produce incompletely replicated chromosomes that cannot be properly partitioned into daughter cells. DNA replication restart, the process that reloads replisomes at prematurely terminated sites, is therefore essential in E. coli and other bacteria. Three replication restart pathways have been identified in E. coli: PriA/PriB, PriA/PriC, and PriC/Rep. A limited number of genetic interactions between replication restart and other genome maintenance pathways have been defined, but a systematic study placing replication restart reactions in a broader cellular context has not been performed. We have utilized transposon-insertion sequencing to identify new genetic interactions between DNA replication restart pathways and other cellular systems. Known genetic interactors with the priB replication restart gene (uniquely involved in the PriA/PriB pathway) were confirmed and several novel priB interactions were discovered. Targeted genetic and imaging-based experiments with priB and its genetic partners revealed significant double-strand DNA break accumulation in strains with mutations in dam, rep, rdgC, lexA, or polA. Modulating the activity of the RecA recombinase partially suppressed the detrimental effects of rdgC or lexA mutations in ΔpriB cells. Taken together, our results highlight roles for several genes in double-strand DNA break homeostasis and define a genetic network that facilitates DNA repair/processing upstream of PriA/PriB-mediated DNA replication restart in E. coli.
Research Organization:
Univ. of Wisconsin, Madison, WI (United States). Great Lakes Bioenergy Research Center
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
SC0018409
OSTI ID:
1922609
Journal Information:
G3, Journal Name: G3 Journal Issue: 12 Vol. 12; ISSN 2160-1836
Publisher:
Genetics Society of AmericaCopyright Statement
Country of Publication:
United States
Language:
English

References (88)

Escherichia coli PriA protein is essential for inducible and constitutive stable DNA replication. journal November 1994
Cellular role of DNA polymerase I journal January 1990
Genetic mapping and DNA sequence analysis of mutations in the polA gene of Escherichia coli journal November 1985
The promoter of the recA gene of Escherichia coli journal April 1991
Gene disruption in Escherichia coli: TcR and KmR cassettes with the option of Flp-catalyzed excision of the antibiotic-resistance determinant journal January 1995
Biochemical characterization of mutant forms of DNA polymerase I from Escherichia coli. I. The polA12 mutation. journal July 1976
Identification of a domain of Escherichia coli primase required for functional interaction with the DnaB helicase at the replication fork. journal February 1994
Persistence of Deoxyribonucleic Acid Polymerase I and Its 5′ → 3′ Exonuclease Activity in PolA Mutants of Escherichia coli K12 journal November 1973
Coupling of a Replicative Polymerase and Helicase: A τ–DnaB Interaction Mediates Rapid Replication Fork Movement journal February 1996
RuvAB Acts at Arrested Replication Forks journal October 1998
The SOS system journal March 1985
Cisplatin induces DNA double-strand break formation in Escherichia coli dam mutants journal July 2005
RecA-Dependent Cleavage of LexA Dimers journal March 2008
Regulation of E. coli Rep helicase activity by PriC journal July 2021
The Disposition of Nascent Strands at Stalled Replication Forks Dictates the Pathway of Replisome Loading during Restart journal March 2005
An inducible DNA replication–cell division coupling mechanism in E. coli journal April 1981
The importance of repairing stalled replication forks journal March 2000
Construction of Escherichia coli K-12 in-frame, single-gene knockout mutants the Keio collection journal February 2006
Tn-seq: high-throughput parallel sequencing for fitness and genetic interaction studies in microorganisms journal September 2009
Fast gapped-read alignment with Bowtie 2 journal March 2012
MicrobeJ, a tool for high throughput bacterial cell detection and quantitative analysis journal June 2016
Transposon insertion sequencing: a new tool for systems-level analysis of microorganisms journal May 2013
Structural basis of the 3′-end recognition of a leading strand in stalled replication forks by PriA journal April 2007
Organization of sister origins and replisomes during multifork DNA replication in Escherichia coli journal October 2007
dnaC mutations suppress defects in DNA replication- and recombination-associated functions in priB and priC double mutants in Escherichia coli K-12 journal October 1999
RuvABC-dependent double-strand breaks in dnaBts mutants require RecA journal November 2000
PriA mutations that affect PriA-PriC function during replication restart: PriA-PriC interactions journal August 2001
Primosome assembly requirement for replication restart in the Escherichia coli holDG10 replication mutant journal May 2002
RdgB acts to avoid chromosome fragmentation in Escherichia coli journal May 2003
One-step inactivation of chromosomal genes in Escherichia coli K-12 using PCR products journal May 2000
RecA protein promotes the regression of stalled replication forks in vitro journal July 2001
Structure-specific DNA replication-fork recognition directs helicase and replication restart activities of the PriA helicase journal September 2018
Selective Elimination of the Exonuclease Activity of the Deoxyribonucleic Acid Polymerase from Escherichia coli B by Limited Proteolysis journal January 1970
Replication deficiencies in priA mutants of Escherichia coli lacking the primosomal replication n' protein. journal April 1991
τ Protects β in the Leading-strand Polymerase Complex at the Replication Fork journal February 1996
Tn5 in Vitro Transposition journal March 1998
Hairpin Formation in Tn5 Transposition journal December 1999
The PriA Replication Restart Protein Blocks Replicase Access Prior to Helicase Assembly and Directs Template Specificity through Its ATPase Activity journal December 2012
Unwinding of the Nascent Lagging Strand by Rep and PriA Enables the Direct Restart of Stalled Replication Forks journal October 2005
ATP Hydrolysis Is Essential for the Function of the Uup ATP-binding Cassette ATPase in Precise Excision of Transposons journal March 2006
Inhibition of RecA Protein Function by the RdgC Protein from Escherichia coli journal February 2006
The TraDIS toolkit: sequencing and analysis for dense transposon mutant libraries journal January 2016
DNA double-strand breaks caused by replication arrest journal January 1997
The RdgC protein of Escherichia coli binds DNA and counters a toxic effect of RecFOR in strains lacking the replication restart protein PriA journal February 2003
The mechanism of recA polA lethality: suppression by RecA-independent recombination repair activated by the lexA(Def) mutation in Escherichia coli. journal April 1995
Multiple Genetic Pathways for Restarting DNA Replication Forks in Escherichia coli K-12 journal June 2000
DNA binding sites for the Mlc and NagC proteins: regulation of nagE, encoding the N-acetylglucosamine-specific transporter in Escherichia coli journal January 2001
Resolving Toxic DNA repair intermediates in every E. coli replication cycle: critical roles for RecG, Uup and RadD journal July 2020
Mechanisms of bacterial DNA replication restart journal November 2017
RecFOR epistasis group: RecF and RecO have distinct localizations and functions in Escherichia coli journal January 2019
A new role for Escherichia coli Dam DNA methylase in prevention of aberrant chromosomal replication journal April 2019
Single-molecule live cell imaging of Rep reveals the dynamic interplay between an accessory replicative helicase and the replisome journal April 2019
Rep and PriA helicase activities prevent RecA from provoking unnecessary recombination during replication fork repair journal August 2006
Mismatch repair-dependent processing of methylation damage gives rise to persistent single-stranded gaps in newly replicated DNA journal December 2007
Simultaneous assay of every Salmonella Typhi gene using one million transposon mutants journal October 2009
Screening for synthetic lethal mutants in Escherichia coli and identification of EnvC (YibP) as a periplasmic septal ring factor with murein hydrolase activity journal April 2004
Measurement of SOS expression in individual Escherichia coli K-12 cells using fluorescence microscopy: SOS expression using fluorescence microscopy journal July 2004
The role of replication initiation control in promoting survival of replication fork damage journal February 2006
A novel dnaC mutation that suppresses priB rep mutant phenotypes in Escherichia coli K-12 journal May 2006
Different regions of Mlc and NagC, homologous transcriptional repressors controlling expression of the glucose and N-acetylglucosamine phosphotransferase systems in Escherichia coli, are required for inducer signal recognition journal December 2007
Escherichia coli K‐12 has two distinguishable PriA‐PriB replication restart pathways journal September 2021
DNA Damage-Induced Replication Fork Regression and Processing in Escherichia coli journal January 2003
Nuclear envelope rupture and repair during cancer cell migration journal April 2016
A single point mutation in the DNA gyrase A protein greatly reduces binding of fluoroquinolones to the gyrase-DNA complex journal January 1993
Replication Restart in Bacteria journal July 2017
Escherichia coli Genes and Pathways Involved in Surviving Extreme Exposure to Ionizing Radiation journal July 2014
Characterization of dnaC2 and dnaC28 Mutants by Flow Cytometry journal April 1998
Recombination Is Essential for Viability of an Escherichia coli dam (DNA Adenine Methyltransferase) Mutant journal January 2000
Replication Fork Breakage and Restart in Escherichia coli journal September 2018
RecBCD Enzyme and the Repair of Double-Stranded DNA Breaks journal December 2008
Essential Role for an Isoform of Escherichia coli Translation Initiation Factor IF2 in Repair of Two-Ended DNA Double-Strand Breaks journal April 2022
Method for determining whether a gene of Escherichia coli is essential: application to the polA gene journal May 1984
Direct selection of mutations reducing transcription or translation of the recA gene of Escherichia coli with a recA-lacZ protein fusion journal August 1985
Analysis of ftsZ mutations that confer resistance to the cell division inhibitor SulA (SfiA) journal October 1990
Inactivation of the Escherichia coli priA DNA replication protein induces the SOS response journal November 1991
Convenient and reversible site-specific targeting of exogenous DNA into a bacterial chromosome by use of the FLP recombinase: the FLIRT system journal October 1997
The Essential Genome of Escherichia coli K-12 journal February 2018
Combining Genome-Scale Experimental and Computational Methods To Identify Essential Genes in Rhodobacter sphaeroides journal June 2017
A collection of strains containing genetically linked alternating antibiotic resistance elements for genetic mapping of Escherichia coli journal March 1989
Mechanisms for Initiating Cellular DNA Replication journal June 2013
Rapid assessment of the effect of ciprofloxacin on chromosomal DNA from Escherichia coli using an in situ DNA fragmentation assay journal January 2009
Cell Size and the Initiation of DNA Replication in Bacteria journal March 2012
Directed Evolution of RecA Variants with Enhanced Capacity for Conjugational Recombination journal June 2015
A dnaT Mutant With Phenotypes Similar to Those of a priA2::kan Mutant in Escherichia coli K-12 journal June 2004
Critical role of R-loops in processing replication blocks journal January 2005
DNA Damage Repair and Drug Efflux as Potential Targets for Reversing Low or Intermediate Ciprofloxacin Resistance in E. coli K-12 journal July 2018
Engineered proteins detect spontaneous DNA breakage in human and bacterial cells journal October 2013
Transcription leads to pervasive replisome instability in bacteria journal January 2017

Similar Records

A Hand-Off Mechanism for Primosome Assembly in Replication Restart
Journal Article · Tue Nov 11 23:00:00 EST 2008 · Mol. Cell · OSTI ID:1007655

The crystal structure of Neisseria gonorrhoeae PriB reveals mechanistic differences among bacterial DNA replication restart pathways
Journal Article · Tue May 25 00:00:00 EDT 2010 · Nucleic Acids Res. · OSTI ID:1002327

Structure-specific DNA replication-fork recognition directs helicase and replication restart activities of the PriA helicase
Journal Article · Sun Sep 09 20:00:00 EDT 2018 · Proceedings of the National Academy of Sciences of the United States of America · OSTI ID:1477117