Evidence map›Paper›PMID 22592530›Full record

ArticleCell cycle (Georgetown, Tex.)2012

Structure of monoubiquitinated PCNA: implications for DNA polymerase switching and Okazaki fragment maturation.

Zhongtao Zhang, Sufang Zhang, Szu Hua Sharon Lin, Xiaoxiao Wang, Licheng Wu, Ernest Y C Lee, Marietta Y W T Lee

Open access · bronzeAbstract read
In one paragraph

Article in Cell cycle (Georgetown, Tex.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
3.0field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 57 citations in OpenAlex.

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  11. Beyond the Lesion: Back to High Fidelity DNA Synthesis.Frontiers in molecular biosciences · 2021
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Zhongtao ZhangDepartment of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, USA. Zhongtao_zhang@nymc.edu
Sufang Zhang
Szu Hua Sharon Lin
Xiaoxiao Wang
Licheng Wu
Ernest Y C Lee
Marietta Y W T Lee
New York Medical College · USCatalyst Foundation · US

Funding

BIOCHEMICAL STUDIES OF POLYMERASE DELTAR01GM031973 · NIGMS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI LEE, MARIETTA Y. · 1985 to 2012
$5.8M
Modification of DNA Polymerase Delta by a Novel Mechanism During Replication StreR01ES014737 · NIEHS · NEW YORK MEDICAL COLLEGE · PI LEE, MARIETTA Y., ZHANG, ZHONGTAO · 2008 to 2017
$3.5M
NIEHS NIH HHS ES14737NIEHS NIH HHS R01 ES014737NIGMS NIH HHS GM31973NIGMS NIH HHS R01 GM031973
6 · The paper itself

Abstract

Ubiquitination of proliferating cell nuclear antigen (PCNA) to ub-PCNA is essential for DNA replication across bulky template lesions caused by UV radiation and alkylating agents, as ub-PCNA orchestrates the recruitment and switching of translesion synthesis (TLS) polymerases with replication polymerases. This allows replication to proceed, leaving the DNA to be repaired subsequently. Defects in a TLS polymerase, Pol η, lead to a form of Xeroderma pigmentosum, a disease characterized by severe skin sensitivity to sunlight damage and an increased incidence of skin cancer. Structurally, however, information on how ub-PCNA orchestrates the switching of these two classes of polymerases is lacking. We have solved the structure of ub-PCNA and demonstrate that the ubiquitin molecules in ub-PCNA are radially extended away from the PCNA without structural contact aside from the isopeptide bond linkage. This unique orientation provides an open platform for the recruitment of TLS polymerases through ubiquitin-interacting domains. However, the ubiquitin moieties, to the side of the equatorial PCNA plane, can place spatial constraints on the conformational flexibility of proteins bound to ub-PCNA. We show that ub-PCNA is impaired in its ability to support the coordinated actions of Fen1 and Pol δ in assays mimicking Okazaki fragment processing. This provides evidence for the novel concept that ub-PCNA may modulate additional DNA transactions other than TLS polymerase recruitment and switching.

Indexed as

Binding SitesCrystallography, X-RayDNADNA-Directed DNA PolymeraseFlap EndonucleasesHumansModels, MolecularProliferating Cell Nuclear AntigenProtein Structure, TertiaryUbiquitinationY-Family DNA PolymerasesDNADNA-Directed DNA PolymeraseFlap EndonucleasesOkazaki fragmentsProliferating Cell Nuclear AntigenRad30 proteinY-Family DNA Polymerases

Identifiers

PMID22592530
PMCPMC3368864
OpenAlexW2031322969

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.