Evidence map›Paper›PMID 19933279›Full record

ArticleThe Journal of biological chemistry2010

Uracil DNA glycosylase activity on nucleosomal DNA depends on rotational orientation of targets.

Hope A Cole, Jenna M Tabor-Godwin, Jeffrey J Hayes

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

58 citing papers in PubMed, 97 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

Hope A ColeDepartment of Biochemistry and Biophysics, University of Rochester, Rochester, New York 14642, USA.
Jenna M Tabor-Godwin
Jeffrey J Hayes
University of Rochester · US

Funding

Histone Tall Interactions and Functions in ChromatinR01GM052426 · NIGMS · UNIVERSITY OF ROCHESTER · PI HAYES, JEFFREY J · 1995 to 2021
$6.2M
NIGMS NIH HHS R01 GM052426NIGMS NIH HHS R01GM52426
6 · The paper itself

Abstract

The activity of uracil DNA glycosylases (UDGs), which recognize and excise uracil bases from DNA, has been well characterized on naked DNA substrates but less is known about activity in chromatin. We therefore prepared a set of model nucleosome substrates in which single thymidine residues were replaced with uracil at specific locations and a second set of nucleosomes in which uracils were randomly substituted for all thymidines. We found that UDG efficiently removes uracil from internal locations in the nucleosome where the DNA backbone is oriented away from the surface of the histone octamer, without significant disruption of histone-DNA interactions. However, uracils at sites oriented toward the histone octamer surface were excised at much slower rates, consistent with a mechanism requiring spontaneous DNA unwrapping from the nucleosome. In contrast to the nucleosome core, UDG activity on DNA outside the core DNA region was similar to that of naked DNA. Association of linker histone reduced activity of UDG at selected sites near where the globular domain of H1 is proposed to bind to the nucleosome as well as within the extra-core DNA. Our results indicate that some sites within the nucleosome core and the extra-core (linker) DNA regions represent hot spots for repair that could influence critical biological processes.

Indexed as

ChromatinDNA, BacterialDNA RepairEnzyme ActivationEscherichia coliEscherichia coli ProteinsHistonesNucleosomesStereoisomerismSubstrate SpecificityUracil-DNA GlycosidaseChromatinDNA, BacterialEscherichia coli ProteinsHistonesNucleosomesUracil-DNA Glycosidase

Identifiers

PMID19933279
PMCPMC2807341
OpenAlexW2024119684

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.