Evidence map›Paper›PMID 30140014›Full record

ArticleScientific reports2018

Structural basis for polymerase η-promoted resistance to the anticancer nucleoside analog cytarabine.

Olga Rechkoblit, Jayati Roy Choudhury, Angeliki Buku, Louise Prakash, Satya Prakash, Aneel K Aggarwal

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.6field-weighted citation impact, top 34% 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

8 citing papers in PubMed, 14 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

6 authors at 2 institutions in 1 country.

Olga RechkoblitDepartment of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, Box 1677, 1425 Madison Avenue, New York, NY, 10029, USA.
Jayati Roy ChoudhuryDepartment of Biochemistry and Molecular Biology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77755-1061, USA.
Angeliki BukuDepartment of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, Box 1677, 1425 Madison Avenue, New York, NY, 10029, USA.
Louise PrakashDepartment of Biochemistry and Molecular Biology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77755-1061, USA.
Satya PrakashDepartment of Biochemistry and Molecular Biology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77755-1061, USA.
Aneel K AggarwalDepartment of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, Box 1677, 1425 Madison Avenue, New York, NY, 10029, USA. aneel.agarwal@mssm.edu.
Icahn School of Medicine at Mount Sinai · USThe University of Texas Medical Branch at Galveston · US

Funding

Overall EvaluationP41GM103403 · NIGMS · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2012 to 2017
$14.3M
Genetic and molecular mechanisms of replication of araC damaged DNAR01CA200575 · NCI · UNIVERSITY OF TEXAS MED BR GALVESTON · PI PRAKASH, SATYA · 2016 to 2020
$2.0M
Pixel Array Detector for X-ray CrystallographyS10RR029205 · NCRR · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2010 to 2010
$1.8M
NCI NIH HHS R01 CA200575NCRR NIH HHS S10 RR029205NIGMS NIH HHS P41 GM103403
6 · The paper itself

Abstract

Cytarabine (AraC) is an essential chemotherapeutic for acute myeloid leukemia (AML) and resistance to this drug is a major cause of treatment failure. AraC is a nucleoside analog that differs from 2'-deoxycytidine only by the presence of an additional hydroxyl group at the C2' position of the 2'-deoxyribose. The active form of the drug AraC 5'-triphosphate (AraCTP) is utilized by human replicative DNA polymerases to insert AraC at the 3' terminus of a growing DNA chain. This impedes further primer extension and is a primary basis for the drug action. The Y-family translesion synthesis (TLS) DNA polymerase η (Polη) counteracts this barrier to DNA replication by efficient extension from AraC-terminated primers. Here, we provide high-resolution structures of human Polη with AraC incorporated at the 3'-primer terminus. We show that Polη can accommodate AraC at different stages of the catalytic cycle, and that it can manipulate the conformation of the AraC sugar via specific hydrogen bonding and stacking interactions. Taken together, the structures provide a basis for the ability of Polη to extend DNA synthesis from AraC terminated primers.

Indexed as

Antineoplastic AgentsCrystallizationCytarabineCytidineDeoxycytidineDNA-Directed DNA PolymeraseDNA RepairDNA ReplicationHumansMolecular StructureX-Ray DiffractionAntineoplastic AgentsCytarabineCytidineDeoxycytidineDNA-Directed DNA Polymerase

Identifiers

PMID30140014
PMCPMC6107656
OpenAlexW2887123301

What OpenQuestion holds

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LicenceCC BY
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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.