Evidence map›Paper›PMID 31130486›Full record

ArticleStructure (London, England : 1993)2019

Structural Insights into the Lipid A Transport Pathway in MsbA.

Pius S Padayatti, Sung Chang Lee, Robyn L Stanfield, Po-Chao Wen, Emad Tajkhorshid, Ian A Wilson, Qinghai Zhang

Open access · bronzeAbstract read
In one paragraph

Article in Structure (London, England : 1993), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.2field-weighted citation impact, top 11% 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

35 citing papers in PubMed, 55 citations in OpenAlex.

  1. Review
  2. Article
  3. Molecular Basis for the Activation ofJournal of the American Chemical Society · 2025
    Article
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  5. Article
  6. Article
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  11. A review of the mechanisms that confer antibiotic resistance in pathotypes ofFrontiers in cellular and infection microbiology · 2024
    Review
  12. Article
  13. Article
  14. Identification of a muropeptide precursor transporter from gut microbiota and its role in preventing intestinal inflammation.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Lipopolysaccharides: Regulated Biosynthesis and Structural Diversity.International journal of molecular sciences · 2023
    Article
  20. Review
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

7 authors at 2 institutions in 1 country.

Pius S PadayattiDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
Sung Chang LeeDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
Robyn L StanfieldDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
Po-Chao WenNIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Emad TajkhorshidNIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Ian A WilsonDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA; Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
Qinghai ZhangDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. Electronic address: qinghai@scripps.edu.
Scripps Research Institute · USUniversity of Illinois Urbana-Champaign · US

Funding

Support Component D/Vaccine Discovery, Concept to ClinicUM1AI100663 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI BAROUCH, DAN H. · 2012 to 2018
$131.5M
Synthetic Antigen Binder CoreU54GM087519 · NIGMS · UNIVERSITY OF CHICAGO · PI BEZANILLA, FRANCISCO J · 2010 to 2017
$31.9M
WHOLE CELL SIMULATIONP41GM104601 · NIGMS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI TAJKHORSHID, EMAD · 2012 to 2021
$19.0M
Resource for Macromolecular Modeling and VisualizationR24GM145965 · NIGMS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI Emad Tajkhorshid · 2022 to 2026
$6.2M
Toolkit for High-Resolution Structure and Dynamics of Functional LipidsR01GM123455 · NIGMS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI MORRISSEY, JAMES H., RIENSTRA, CHAD M · 2016 to 2020
$5.0M
Studies of P-glycoprotein and drug interactionsR01GM118594 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI ZHANG, QINGHAI · 2016 to 2019
$2.0M
Mediating Membrane Protein Crystal Contacts by Stabilization ReagentsR01GM098538 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI ZHANG, QINGHAI · 2011 to 2015
$1.8M
NIGMS NIH HHS P41 GM104601NIGMS NIH HHS R01 GM098538NIGMS NIH HHS R01 GM118594NIGMS NIH HHS R01 GM123455NIGMS NIH HHS R24 GM145965NIGMS NIH HHS U54 GM087519
6 · The paper itself

Abstract

MsbA is an essential ATP-binding cassette transporter in Gram-negative bacteria that transports lipid A and lipopolysaccharide from the cytoplasmic leaflet to the periplasmic leaflet of the inner membrane. Here we report the X-ray structure of MsbA from Salmonella typhimurium at 2.8-Å resolution in an inward-facing conformation after cocrystallization with lipid A and using a stabilizing facial amphiphile. The structure displays a large amplitude opening in the transmembrane portal, which is likely required for lipid A to pass from its site of synthesis into the protein-enclosed transport pathway. Putative lipid A density is observed further inside the transmembrane cavity, consistent with a trap and flip model. Additional electron density attributed to lipid A is observed near an outer surface cleft at the periplasmic ends of the transmembrane helices. These findings provide new structural insights into the lipid A transport pathway through comparative analysis with existing MsbA structures.

Indexed as

Adenosine TriphosphateATP-Binding Cassette TransportersBacterial ProteinsBinding SitesBiological TransportCell MembraneCloning, MolecularCrystallography, X-RayEscherichia coliGene ExpressionGenetic VectorsLipid AModels, MolecularPeriplasmPhospholipid Transfer ProteinsProtein BindingAdenosine TriphosphateATP-Binding Cassette TransportersBacterial ProteinsLipid AMsbA protein, BacteriaPhospholipid Transfer ProteinsRecombinant ProteinsABC transporterfacial amphiphilelipid Alipid flippaselipopolysaccharideX-ray crystallography

Identifiers

PMID31130486
PMCPMC6610721
OpenAlexW2945262470

What OpenQuestion holds

Textmetadata
LicenceTDM
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.