Evidence map›Paper›PMID 31471317›Full record

ArticleThe Journal of biological chemistry2019

Structural and functional evidence that lipoprotein LpqN supports cell envelope biogenesis in

Geoff C Melly, Haley Stokas, Jennifer L Dunaj, Fong Fu Hsu, Malligarjunan Rajavel, Chih-Chia Su, Edward W Yu, Georgiana E Purdy

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

20 citing papers in PubMed, 30 citations in OpenAlex.

  1. Structure, assembly, and mechanism of the MmpL family of transporters.Microbiology and molecular biology reviews : MMBR · 2026
    Review
  2. Journal of bacteriology · 2026
    Article
  3. Secreted proteins ofFrontiers in tuberculosis · 2026
    Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. CosolvKit: a Versatile Tool for Cosolvent MD Preparation and Analysis.Journal of chemical information and modeling · 2024
    Article
  10. Article
  11. Photoinactivation ofInternational journal of molecular sciences · 2024
    Article
  12. Loss of LpqM proteins inMicrobiology spectrum · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Proteomic Analyses ofFrontiers in cellular and infection microbiology · 2021
    Article
  20. Targeting MmpL3 for anti-tuberculosis drug development.Biochemical Society transactions · 2020
    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

8 authors at 3 institutions in 1 country.

Geoff C MellyDepartment of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon 97239.ORCID 0000-0002-5437-4716
Haley StokasDepartment of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon 97239.
Jennifer L DunajDepartment of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon 97239.
Fong Fu HsuDepartment of Internal Medicine, Mass Spectrometry Resource, Division of Endocrinology, Diabetes, Metabolism, and Lipid Research, Washington University School of Medicine, St. Louis, Missouri 63110.
Malligarjunan RajavelDepartment of Pharmacology, Case Western Reserve University, Cleveland, Ohio 44106.
Chih-Chia SuDepartment of Pharmacology, Case Western Reserve University, Cleveland, Ohio 44106.
Edward W YuDepartment of Pharmacology, Case Western Reserve University, Cleveland, Ohio 44106.
Georgiana E PurdyDepartment of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, Oregon 97239 purdyg@ohsu.edu.
Oregon Health & Science University · USCase Western Reserve University · USWashington University in St. Louis · US

Funding

Understanding the origins of rapid recurrence of pancreatic cancer after resectionP30CA069533 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI Grace B Gill · 1997 to 2026
$60.5M
User Training and OutreachP30GM124165 · NIGMS · CORNELL UNIVERSITY · PI Nozomi Ando, J Christopher Fromme · 2018 to 2026
$34.2M
Washington University Nutrition Obesity Research CenterP30DK056341 · NIDDK · WASHINGTON UNIVERSITY · PI Dominic N Reeds · 1999 to 2026
$30.2M
WU P&FP30DK020579 · NIDDK · WASHINGTON UNIVERSITY · PI Clay F. Semenkovich · 2013 to 2026
$27.1M
TRANSGENICS COREP60DK020579 · NIDDK · WASHINGTON UNIVERSITY · PI SCHAFFER, JEAN E. · 1986 to 2012
$25.2M
Proteomics CoreP30EY010572 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI Kate E Keller · 1995 to 2026
$19.4M
TrainingP41GM103422 · NIGMS · WASHINGTON UNIVERSITY · PI YARASHESKI, KEVIN E · 2012 to 2019
$12.0M
INTERACTIONS AT THE MICROBE/HOST INTERFACET32AI007472 · NIAID · OREGON HEALTH & SCIENCE UNIVERSITY · PI LANDFEAR, SCOTT M · 1995 to 2019
$6.7M
Metabolite modulation of Mtb regulators of cell wall biogenesisR01AI123148 · NIAID · OREGON HEALTH & SCIENCE UNIVERSITY · PI PURDY, GEORGIANA E., YU, EDWARD W · 2017 to 2021
$2.4M
Pixel Array Detector for X-ray CrystallographyS10RR029205 · NCRR · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2010 to 2010
$1.8M
Structure and mechanism of the AbgT-family transportersR01AI114629 · NIAID · IOWA STATE UNIVERSITY · PI YU, EDWARD W · 2015 to 2017
$1.1M
LTQ Orbitrap VelosS10OD012246 · OD · OREGON HEALTH & SCIENCE UNIVERSITY · PI DAVID, LARRY L · 2012 to 2012
$854k
NCI NIH HHS P30 CA069533NCRR NIH HHS S10 RR029205NEI NIH HHS P30 EY010572NIAID NIH HHS R01 AI114629NIAID NIH HHS R01 AI123148NIAID NIH HHS R21 AI113074NIAID NIH HHS R56 AI114664NIAID NIH HHS T32 AI007472NIDDK NIH HHS P30 DK020579NIDDK NIH HHS P30 DK056341NIDDK NIH HHS P60 DK020579NIGMS NIH HHS P30 GM124165NIGMS NIH HHS P41 GM103422NIH HHS S10 OD012246
6 · The paper itself

Abstract

The mycobacterial cell envelope is crucial to host-pathogen interactions as a barrier against antibiotics and the host immune response. In addition, cell envelope lipids are mycobacterial virulence factors. Cell envelope lipid biosynthesis is the target of a number of frontline tuberculosis treatments and has been the focus of much research. However, the transport mechanisms by which these lipids reach the mycomembrane remain poorly understood. Many envelope lipids are exported from the cytoplasm to the periplasmic space via the mycobacterial membrane protein large (MmpL) family of proteins. In other bacteria, lipoproteins can contribute to outer membrane biogenesis through direct binding of substrates and/or protein-protein associations with extracytoplasmic biosynthetic enzymes. In this report, we investigate whether the lipoprotein LpqN plays a similar role in mycobacteria. Using a genetic two-hybrid approach, we demonstrate that LpqN interacts with periplasmic loop domains of the MmpL3 and MmpL11 transporters that export mycolic acid-containing cell envelope lipids. We observe that LpqN also interacts with secreted cell envelope biosynthetic enzymes such as Ag85A via pulldown assays. The X-ray crystal structures of LpqN and LpqN bound to dodecyl-trehalose suggest that LpqN directly binds trehalose monomycolate, the MmpL3 and Ag85A substrate. Finally, we observe altered lipid profiles of the Δ

Indexed as

Bacterial ProteinsBinding SitesBiofilmsBiological TransportBiosynthetic PathwaysCell WallLigandsLipoproteinsModels, MolecularMycobacterium tuberculosisMycolic AcidsProtein BindingBacterial ProteinsLigandsLipoproteinsMycolic Acidscell envelopecrystal structureglycolipidlipid transportlipoproteinmembrane transportMycobacterium tuberculosisperiplasmtrehalosevirulence

Identifiers

PMID31471317
PMCPMC6816100
OpenAlexW2970011539

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.