Evidence map›Paper›PMID 22659876›Full record

ArticleNature structural & molecular biology2012

Duplex interrogation by a direct DNA repair protein in search of base damage.

Chengqi Yi, Baoen Chen, Bo Qi, Wen Zhang, Guifang Jia, Liang Zhang, Charles J Li, Aaron R Dinner, Cai-Guang Yang, Chuan He

Abstract read
In one paragraph

Article in Nature structural & molecular biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing 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

39 citing papers in PubMed, 74 citations in OpenAlex.

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  16. Science advances · 2021
    Article
  17. 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

10 authors at 3 institutions in 2 countries.

Chengqi YiState Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China.
Baoen Chen
Bo Qi
Wen Zhang
Guifang Jia
Liang Zhang
Charles J Li
Aaron R Dinner
Cai-Guang Yang
Chuan He
University of Chicago · USShanghai Institute of Materia Medica · CNCenter for Life Sciences · CN

Funding

Direct Oxidative Nucleic Acids DemethylationR01GM071440 · NIGMS · UNIVERSITY OF CHICAGO · PI HE, CHUAN · 2005 to 2018
$3.7M
NIGMS NIH HHS GM071440NIGMS NIH HHS R01 GM071440
6 · The paper itself

Abstract

ALKBH2 is a direct DNA repair dioxygenase guarding the mammalian genome against N(1)-methyladenine, N(3)-methylcytosine and 1,N(6)-ethenoadenine damage. A prerequisite for repair is to identify these lesions in the genome. Here we present crystal structures of human ALKBH2 bound to different duplex DNAs. Together with computational and biochemical analyses, our results suggest that DNA interrogation by ALKBH2 has two previously unknown features: (i) ALKBH2 probes base-pair stability and detects base pairs with reduced stability, and (ii) ALKBH2 does not have nor need a damage-checking site, which is critical for preventing spurious base cleavage for several glycosylases. The demethylation mechanism of ALKBH2 insures that only cognate lesions are oxidized and reversed to normal bases, and that a flipped, non-substrate base remains intact in the active site. Overall, the combination of duplex interrogation and oxidation chemistry allows ALKBH2 to detect and process diverse lesions efficiently and correctly.

Indexed as

DNA DamageDNA RepairAlkB Homolog 2, Alpha-Ketoglutarate-Dependent DioxygenaseDioxygenasesDNA Repair EnzymesModels, MolecularALKBH2 protein, humanAlkB Homolog 2, Alpha-Ketoglutarate-Dependent DioxygenaseDioxygenasesDNA Repair Enzymes

Identifiers

PMID22659876
PMCPMC3392526
OpenAlexW2084928359

What OpenQuestion holds

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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.