Evidence map›Paper›PMID 26249353›Full record

ArticleActa crystallographica. Section D, Biological crystallography2015

Three-dimensional structure of the human breast cancer resistance protein (BCRP/ABCG2) in an inward-facing conformation.

Mark F Rosenberg, Zsolt Bikadi, Eszter Hazai, Tobias Starborg, Lawrence Kelley, Naomi E Chayen, Robert C Ford, Qingcheng Mao

Open access · bronzeAbstract read
In one paragraph

Article in Acta crystallographica. Section D, Biological crystallography, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.0field-weighted citation impact, top 12% 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

15 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
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  7. 3D structure of the transporter ABCG2-What's new?British journal of pharmacology · 2020
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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

8 authors at 3 institutions in 2 countries.

Mark F RosenbergFaculty of Life Science, The University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, England.
Zsolt BikadiVirtua Drug Ltd, Budapest 1015, Hungary.
Eszter HazaiFaculty of Life Science, The University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, England.
Tobias StarborgFaculty of Life Science, The University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, England.
Lawrence KelleyCentre for Bioinformatics, Division of Molecular Biosciences, Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, England.
Naomi E ChayenComputational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Sir Alexander Fleming Building, London SW7 2AZ, England.
Robert C FordFaculty of Life Science, The University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, England.
Qingcheng MaoDepartment of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, WA 98195, USA.
University of Manchester · GBImperial College London · GBUniversity of Washington · US

Funding

Mechanism of Drug Transport by BCRP/ABCG2R01GM073715 · NIGMS · UNIVERSITY OF WASHINGTON · PI MAO, QINGCHENG · 2006 to 2010
$1.3M
Biotechnology and Biological Sciences Research Council BB/J019240/1NIGMS NIH HHS GM073715NIGMS NIH HHS R01 GM073715Wellcome TrustWellcome Trust 081406/Z/06/ZWellcome Trust 097820/Z/11/Z
6 · The paper itself

Abstract

ABCG2 is an efflux drug transporter that plays an important role in drug resistance and drug disposition. In this study, the first three-dimensional structure of human full-length ABCG2 analysed by electron crystallography from two-dimensional crystals in the absence of nucleotides and transported substrates is reported at 2 nm resolution. In this state, ABCG2 forms a symmetric homodimer with a noncrystallographic twofold axis perpendicular to the two-dimensional crystal plane, as confirmed by subtomogram averaging. This configuration suggests an inward-facing configuration similar to murine ABCB1, with the nucleotide-binding domains (NBDs) widely separated from each other. In the three-dimensional map, densities representing the long cytoplasmic extensions from the transmembrane domains that connect the NBDs are clearly visible. The structural data have allowed the atomic model of ABCG2 to be refined, in which the two arms of the V-shaped ABCG2 homodimeric complex are in a more closed and narrower conformation. The structural data and the refined model of ABCG2 are compatible with the biochemical analysis of the previously published mutagenesis studies, providing novel insight into the structure and function of the transporter.

Indexed as

Cryoelectron MicroscopyProtein Structure, QuaternaryATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2BreastBreast NeoplasmsCrystallizationFemaleHumansModels, MolecularNeoplasm ProteinsProtein MultimerizationABCG2 protein, humanATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2Neoplasm ProteinsABCG2ABC transporterATP-binding cassette transporterBCRPcryo-electron microscopythree-dimensional structure from two-dimensional crystals

Identifiers

PMID26249353
PMCPMC4528803
OpenAlexW1087049433

What OpenQuestion holds

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Registered trials

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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.