Evidence map›Paper›PMID 17485252›Full record

ReviewDNA repair2007

DNA binding, nucleotide flipping, and the helix-turn-helix motif in base repair by O6-alkylguanine-DNA alkyltransferase and its implications for cancer chemotherapy.

Julie L Tubbs, Anthony E Pegg, John A Tainer

Open access · greenAbstract readReview
In one paragraph

Review in DNA repair, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

84 citing papers in PubMed, 174 citations in OpenAlex.

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24 more citing papers are in PubMed but not listed here.

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 3 institutions in 1 country.

Julie L TubbsThe Scripps Research Institute, The Skaggs Institute for Chemical Biology and Department of Molecular Biology, 10550 North Torrey Pines Road, MB4, La Jolla, CA 92037, USA.
Anthony E Pegg
John A Tainer
Lawrence Berkeley National Laboratory · USPennsylvania State University · USScripps Research Institute · US

Funding

Transcription-Coupled & Replication-Associated Excision RepairP01CA092584 · NCI · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI John A. Tainer · 2001 to 2026
$89.6M
Structural Biochemistry of DNA DealkylationR01CA097209 · NCI · SCRIPPS RESEARCH INSTITUTE, THE · PI TAINER, JOHN A. · 2002 to 2014
$4.4M
NCI NIH HHS P01 CA092584NCI NIH HHS R01 CA097209NCI NIH HHS R01CA097209
6 · The paper itself

Abstract

O(6)-Alkylguanine-DNA alkyltransferase (AGT) is a crucial target both for the prevention of cancer and for chemotherapy, since it repairs mutagenic lesions in DNA, and it limits the effectiveness of alkylating chemotherapies. AGT catalyzes the unique, single-step, direct damage reversal repair of O(6)-alkylguanines by selectively transferring the O(6)-alkyl adduct to an internal cysteine residue. Recent crystal structures of human AGT alone and in complex with substrate DNA reveal a two-domain alpha/beta fold and a bound zinc ion. AGT uses its helix-turn-helix motif to bind substrate DNA via the minor groove. The alkylated guanine is then flipped out from the base stack into the AGT active site for repair by covalent transfer of the alkyl adduct to Cys145. An asparagine hinge (Asn137) couples the helix-turn-helix DNA binding and active site motifs. An arginine finger (Arg128) stabilizes the extrahelical DNA conformation. With this newly improved structural understanding of AGT and its interactions with biologically relevant substrates, we can now begin to unravel the role it plays in preserving genetic integrity and discover how it promotes resistance to anticancer therapies.

Indexed as

Amino Acid SequenceAnimalsCatalytic DomainCrystallography, X-RayDNADNA Modification MethylasesDNA RepairDNA Repair EnzymesDrug Resistance, NeoplasmHelix-Turn-Helix MotifsHumansModels, MolecularMolecular Sequence DataNeoplasmsNucleotidesO(6)-Methylguanine-DNA MethyltransferaseDNADNA Modification MethylasesDNA Repair EnzymesMGMT protein, humanNucleotidesO(6)-Methylguanine-DNA MethyltransferaseTumor Suppressor Proteins

Identifiers

PMID17485252
PMCPMC1993358
OpenAlexW2025515800

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.