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

Title: Mechanism of RNA polymerase II bypass of oxidative cyclopurine DNA lesions

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2];  [2];  [1];  [1];  [3];  [4];  [2];  [1]
  1. National Cancer Institute, Frederick, MD (United States)
  2. Univ. of California, San Diego, La Jolla, CA (United States)
  3. Biopolcore, Inc., Baltimore, MD (United States)
  4. National Institutes of Health, Bethesda, MD (United States)

In human cells, the oxidative DNA lesion 8,5'-cyclo-2'-deoxyadenosine (CydA) induces prolonged stalling of RNA polymerase II (Pol II) followed by transcriptional bypass, generating both error-free and mutant transcripts with AMP misincorporated immediately downstream from the lesion. Here, we present biochemical and crystallographic evidence for the mechanism of CydA recognition. Pol II stalling results from impaired loading of the template base (5') next to CydA into the active site, leading to preferential AMP misincorporation. Such predominant AMP insertion, which also occurs at an abasic site, is unaffected by the identity of the 5´-templating base, indicating that it derives from nontemplated synthesis according to an A rule known for DNA polymerases and recently identified for Pol II bypass of pyrimidine dimers. Subsequent to AMP misincorporation, Pol II encounters a major translocation block that is slowly overcome. The translocation block combined with the poor extension of the dA.rA mispair reduce transcriptional mutagenesis. Moreover, increasing the active-site flexibility by mutation in the trigger loop, which increases the ability of Pol II to accommodate the bulky lesion, and addition of transacting factor TFIIF facilitate CydA bypass. Thus, blocking lesion entry to the active site, trans-lesion A rule synthesis, and translocation block are common features of transcription across different bulky DNA lesions.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-05CH11231; GM102362
OSTI ID:
1221837
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Vol. 112, Issue 5; ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 37 works
Citation information provided by
Web of Science

References (47)

Relationships Between DNA Repair and Transcription journal June 1996
Genome maintenance mechanisms for preventing cancer journal May 2001
Eukaryotic Translesion Polymerases and Their Roles and Regulation in DNA Damage Tolerance journal March 2009
Replication of damaged DNA by translesion synthesis in human cells journal November 2004
Effect of a Monofunctional Phenanthriplatin-DNA Adduct on RNA Polymerase II Transcriptional Fidelity and Translesion Synthesis journal August 2013
Mechanism of Translesion Transcription by RNA Polymerase II and Its Role in Cellular Resistance to DNA Damage journal April 2012
CPD Damage Recognition by Transcribing RNA Polymerase II journal February 2007
Transcript cleavage by RNA polymerase II arrested by a cyclobutane pyrimidine dimer in the DNA template. journal August 1994
The Oxidative DNA Lesion 8,5′-( S )-Cyclo-2′-deoxyadenosine Is Repaired by the Nucleotide Excision Repair Pathway and Blocks Gene Expression in Mammalian Cells journal May 2000
Transcriptional bypass of bulky DNA lesions causes new mutant RNA transcripts in human cells journal March 2007
Mechanism of transcriptional stalling at cisplatin-damaged DNA journal November 2007
The ?A rule? of mutagen specificity: A consequence of DNA polymerase bypass of non-instructional lesions? journal February 1991
New structural and mechanistic insight into the A-rule and the instructional and non-instructional behavior of DNA photoproducts and other lesions journal December 2002
X-ray structure and mechanism of RNA polymerase II stalled at an antineoplastic monofunctional platinum-DNA adduct journal May 2010
RNA Polymerase Encounters with DNA Damage:  Transcription-Coupled Repair or Transcriptional Mutagenesis? journal February 2006
Translesion synthesis by RNA polymerases: occurrence and biological implications for transcriptional mutagenesis journal December 2002
Multiplexed DNA repair assays for multiple lesions and multiple doses via transcription inhibition and transcriptional mutagenesis journal April 2014
Bulky DNA Lesions Induced by Reactive Oxygen Species journal February 2008
8,5′-Cyclopurine-2′-deoxynucleosides in DNA: Mechanisms of formation, measurement, repair and biological effects journal September 2008
The oxidative DNA lesions 8,5′-cyclopurines accumulate with aging in a tissue-specific manner: Oxidative 8,5′-cyclopurines accumulate with aging journal May 2012
Removal of oxygen free-radical-induced 5',8-purine cyclodeoxynucleosides from DNA by the nucleotide excision-repair pathway in human cells journal April 2000
Evidence for the Involvement of DNA Repair Enzyme NEIL1 in Nucleotide Excision Repair of (5′ R )- and (5′ S )-8,5′-Cyclo-2′-deoxyadenosines journal February 2010
A quantitative assay for assessing the effects of DNA lesions on transcription journal August 2012
Transient Reversal of RNA Polymerase II Active Site Closing Controls Fidelity of Transcription Elongation journal June 2008
Rpb9 Subunit Controls Transcription Fidelity by Delaying NTP Sequestration in RNA Polymerase II journal May 2009
Template Misalignment in Multisubunit RNA Polymerases and Transcription Fidelity journal October 2006
Transcription Factors IIF and IIS and Nucleoside Triphosphate Substrates as Dynamic Probes of the Human RNA Polymerase II Mechanism journal September 2004
Transcription factors TFIIF and TFIIS promote transcript elongation by RNA polymerase II by synergistic and independent mechanisms journal April 2014
RNA polymerase II bypass of oxidative DNA damage is regulated by transcription elongation factors journal November 2006
Mutagenesis by Apurinic/Apyrimidinic Sites journal December 1986
Nucleotide Insertion and Primer Extension at Abasic Template Sites in Different Sequence Contexts journal July 1994
Mutational specificity and genetic control of replicative bypass of an abasic site in yeast journal January 2008
Replication of a cis–syn thymine dimer at atomic resolution journal August 2003
Structural Basis of Transcription: Role of the Trigger Loop in Substrate Specificity and Catalysis journal December 2006
Structural Basis of Transcription journal November 2004
Complete RNA Polymerase II Elongation Complex Structure and Its Interactions with NTP and TFIIS journal December 2004
Structural Basis of Transcription: An RNA Polymerase II Elongation Complex at 3.3 A Resolution journal April 2001
Millisecond dynamics of RNA polymerase II translocation at atomic resolution journal April 2014
Molecular Basis of Transcriptional Mutagenesis at 8-Oxoguanine journal September 2009
Direct and indirect effects of UV radiation on DNA and its components journal October 2001
Transcriptional mutagenesis: causes and involvement in tumour development journal February 2011
The 8,5′-cyclopurine-2′-deoxynucleosides: Candidate neurodegenerative DNA lesions in xeroderma pigmentosum, and unique probes of transcription and nucleotide excision repair journal July 2008
A Mediator-responsive form of metazoan RNA polymerase II journal June 2006
Production of Human RAP30 and RAP74 in Bacterial Cells journal June 1993
RNA Polymerase Encounters with DNA Damage: Transcription-Coupled Repair or Transcriptional Mutagenesis? journal May 2006
Structural Basis of Transcription journal December 2004
CPD damage recognition by transcribing RNA polymerase II journal August 2007

Cited By (10)

The DNA damage response to transcription stress journal September 2019
RNA polymerase II senses obstruction in the DNA minor groove via a conserved sensor motif journal October 2016
Mechanism of RNA polymerase II stalling by DNA alkylation journal October 2017
Mechanism of DNA alkylation-induced transcriptional stalling, lesion bypass, and mutagenesis journal August 2017
Structural basis of transcriptional stalling and bypass of abasic DNA lesion by RNA polymerase II journal February 2018
Bypassing a 8,5′-cyclo-2′-deoxyadenosine lesion by human DNA polymerase η at atomic resolution journal October 2018
5′,8-Cyclopurine Lesions in DNA Damage: Chemical, Analytical, Biological, and Diagnostic Significance journal May 2019
Mechanism of RNA polymerase II stalling by DNA alkylation text January 2017
Oxidative DNA Damage and Repair in the Radioresistant Archaeon Thermococcus gammatolerans journal October 2016
Mechanism of transcription-coupled DNA modification recognition journal February 2017

Similar Records

RNA polymerase II trapped on a molecular treadmill: Structural basis of persistent transcriptional arrest by a minor groove DNA binder
Journal Article · Wed Jan 12 00:00:00 EST 2022 · Proceedings of the National Academy of Sciences of the United States of America · OSTI ID:1221837

Miscoding properties of 1,N{sup 6}-ethanoadenine, a DNA adduct derived from reaction with antitumor agent 1,3-bis(2-chloroethyl)-1-nitrosourea
Journal Article · Wed Mar 05 00:00:00 EST 2003 · Mutation Research - Fundamental & Molecular Mechanisms of Mutagenesis · OSTI ID:1221837

Influence of template strandedness on in vitro replication of mutagen-damaged
Journal Article · Tue May 05 00:00:00 EDT 1987 · Biochemistry; (United States) · OSTI ID:1221837