Evidence map›Paper›PMID 31537793›Full record

ArticleNature communications2019

The cryo-EM structure of the acid activatable pore-forming immune effector Macrophage-expressed gene 1.

Siew Siew Pang, Charles Bayly-Jones, Mazdak Radjainia, Bradley A Spicer, Ruby H P Law, Adrian W Hodel, Edward S Parsons, Susan M Ekkel, Paul J Conroy, Georg Ramm and 8 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

48 citing papers in PubMed, 84 citations in OpenAlex.

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  16. Structure and assembly of a bacterial gasdermin pore.bioRxiv : the preprint server for biology · 2023
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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

18 authors at 6 institutions in 4 countries.

Siew Siew PangARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Melbourne, VIC, 3800, Australia.
Charles Bayly-JonesARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Melbourne, VIC, 3800, Australia.
Mazdak RadjainiaBiomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC, 3800, Australia.
Bradley A SpicerARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Melbourne, VIC, 3800, Australia.
Ruby H P LawARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Melbourne, VIC, 3800, Australia.ORCID http://orcid.org/0000-0001-5432-5781
Adrian W HodelLondon Centre for Nanotechnology, University College London, London, WC1H 0AH, UK.
Edward S ParsonsLondon Centre for Nanotechnology, University College London, London, WC1H 0AH, UK.
Susan M EkkelARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Melbourne, VIC, 3800, Australia.
Paul J ConroyARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Melbourne, VIC, 3800, Australia.ORCID http://orcid.org/0000-0002-9748-4704
Georg RammBiomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC, 3800, Australia.ORCID http://orcid.org/0000-0003-3596-2288
Hariprasad VenugopalBiomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC, 3800, Australia.
Phillip I BirdBiomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC, 3800, Australia.ORCID http://orcid.org/0000-0002-6695-606X
Bart W HoogenboomLondon Centre for Nanotechnology, University College London, London, WC1H 0AH, UK.ORCID http://orcid.org/0000-0002-8882-4324
Ilia VoskoboinikCancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia.
Yann GambinSchool of Medical Science, University of New South Wales, Randwick, NSW, 2052, Australia.
Emma SiereckiSchool of Medical Science, University of New South Wales, Randwick, NSW, 2052, Australia.
Michelle A DunstoneARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Melbourne, VIC, 3800, Australia. Michelle.Dunstone@monash.edu.
James C WhisstockARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Melbourne, VIC, 3800, Australia. James.Whisstock@monash.edu.
Australian Regenerative Medicine Institute · AULondon Centre for Nanotechnology · GBUNSW Sydney · AUAustralian National University · AUDiscovery Institute · USThe University of Melbourne · AU

Funding

Biotechnology and Biological Sciences Research Council BB/N015487/1Medical Research Council MR/R000328/1
6 · The paper itself

Abstract

Macrophage-expressed gene 1 (MPEG1/Perforin-2) is a perforin-like protein that functions within the phagolysosome to damage engulfed microbes. MPEG1 is thought to form pores in target membranes, however, its mode of action remains unknown. We use cryo-Electron Microscopy (cryo-EM) to determine the 2.4 Å structure of a hexadecameric assembly of MPEG1 that displays the expected features of a soluble prepore complex. We further discover that MPEG1 prepore-like assemblies can be induced to perforate membranes through acidification, such as would occur within maturing phagolysosomes. We next solve the 3.6 Å cryo-EM structure of MPEG1 in complex with liposomes. These data reveal that a multi-vesicular body of 12 kDa (MVB12)-associated β-prism (MABP) domain binds membranes such that the pore-forming machinery of MPEG1 is oriented away from the bound membrane. This unexpected mechanism of membrane interaction suggests that MPEG1 remains bound to the phagolysosome membrane while simultaneously forming pores in engulfed bacterial targets.

Indexed as

BacteriaCell MembraneCryoelectron MicroscopyHumansLiposomesLysosomesMacrophagesMembrane ProteinsMicroscopy, Atomic ForcePore Forming Cytotoxic ProteinsProtein DomainsProtein Structure, SecondaryLiposomesMembrane ProteinsMPEG1 protein, humanperforin 2Pore Forming Cytotoxic Proteins

Identifiers

PMID31537793
PMCPMC6753088
OpenAlexW2974408974

What OpenQuestion holds

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LicenceCC BY
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.