Evidence map›Paper›PMID 27190212›Full record

ArticleMolecular pharmacology2016

Cryo-EM Analysis of the Conformational Landscape of Human P-glycoprotein (ABCB1) During its Catalytic Cycle.

Gabriel A Frank, Suneet Shukla, Prashant Rao, Mario J Borgnia, Alberto Bartesaghi, Alan Merk, Aerfa Mobin, Lothar Esser, Lesley A Earl, Michael M Gottesman and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Molecular pharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
5.8field-weighted citation impact, top 3% 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

52 citing papers in PubMed, 86 citations in OpenAlex.

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  19. The Structure and Mechanism of Drug Transporters.Methods in molecular biology (Clifton, N.J.) · 2021
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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

13 authors at 3 institutions in 1 country.

Gabriel A FrankLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Suneet ShuklaLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Prashant RaoLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Mario J BorgniaLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Alberto BartesaghiLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Alan MerkLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Aerfa MobinLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Lothar EsserLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Lesley A EarlLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Michael M GottesmanLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Di XiaLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Suresh V AmbudkarLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland ambudkar@helix.nih.gov ss1@nih.gov.
Sriram SubramaniamLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland ambudkar@helix.nih.gov ss1@nih.gov.
Center for Cancer Research · USNational Cancer Institute · USNational Institutes of Health · US

Funding

Structural Basis of Biological Membrane Protein Functions and Drug ResistanceZIABC010319 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI XIA, DI S · 2009 to 2025
$22.7M
Biochemical Analysis of Multidrug Resistance-linked Transport ProteinsZIABC010030 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI AMBUDKAR, SURESH · 2009 to 2025
$21.6M
Molecular structures of membrane protein assembliesZIABC010824 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SUBRAMANIAM, SRIRAM · 2009 to 2019
$8.0M
6 · The paper itself

Abstract

The multidrug transporter P-glycoprotein (P-gp, ABCB1) is an ATP-dependent pump that mediates the efflux of structurally diverse drugs and xenobiotics across cell membranes, affecting drug pharmacokinetics and contributing to the development of multidrug resistance. Structural information about the conformational changes in human P-gp during the ATP hydrolysis cycle has not been directly demonstrated, although mechanistic information has been inferred from biochemical and biophysical studies conducted with P-gp and its orthologs, or from structures of other ATP-binding cassette transporters. Using single-particle cryo-electron microscopy, we report the surprising discovery that, in the absence of the transport substrate and nucleotides, human P-gp can exist in both open [nucleotide binding domains (NBDs) apart; inward-facing] and closed (NBDs close; outward-facing) conformations. We also probe conformational states of human P-gp during the catalytic cycle, and demonstrate that, following ATP hydrolysis, P-gp transitions through a complete closed conformation to a complete open conformation in the presence of ADP.

Indexed as

BiocatalysisCryoelectron MicroscopyAdenosine DiphosphateAdenosine TriphosphateATP Binding Cassette Transporter, Subfamily BCrystallography, X-RayHumansHydrolysisModels, BiologicalProtein ConformationABCB1 protein, humanAdenosine DiphosphateAdenosine TriphosphateATP Binding Cassette Transporter, Subfamily B

Identifiers

PMID27190212
PMCPMC4931865
OpenAlexW2382781498

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.