Evidence map›Paper›PMID 35264780›Full record

ArticleCell death and differentiation2022

Membrane permeabilization is mediated by distinct epitopes in mouse and human orthologs of the necroptosis effector, MLKL.

Ashish Sethi, Christopher R Horne, Cheree Fitzgibbon, Karyn Wilde, Katherine A Davies, Sarah E Garnish, Annette V Jacobsen, André L Samson, Joanne M Hildebrand, Ahmad Wardak and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Cell death and differentiation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. A non-classical necroptosis pathway mediated by caspases.Cell communication and signaling : CCS · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Mixed Lineage Kinase Domain-Like Protein (MLKL): From Mechanisms to Therapeutic Opportunities.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Role of necroptosis in kidney health and disease.Nature reviews. Nephrology · 2023
    Review
  19. Review
  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

14 authors at 3 institutions in 1 country.

Ashish Sethi *Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, VIC, 3010, Australia.ORCID http://orcid.org/0000-0003-4220-3597
Christopher R Horne *Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.ORCID http://orcid.org/0000-0003-1318-514X
Cheree FitzgibbonWalter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.
Karyn WildeNational Deuteration Facility, Australian Nuclear Science and Technology Organization, Lucas Heights, NSW, 2234, Australia.ORCID http://orcid.org/0000-0002-0538-6796
Katherine A DaviesWalter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.ORCID http://orcid.org/0000-0002-4423-4664
Sarah E GarnishWalter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.
Annette V JacobsenWalter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.ORCID http://orcid.org/0000-0003-0252-7685
André L SamsonWalter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.ORCID http://orcid.org/0000-0002-0637-2716
Joanne M HildebrandWalter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.ORCID http://orcid.org/0000-0002-1456-2042
Ahmad WardakWalter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.ORCID http://orcid.org/0000-0003-1693-6906
Peter E CzabotarWalter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.ORCID http://orcid.org/0000-0002-2594-496X
Emma J PetrieWalter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.
Paul R GooleyDepartment of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, VIC, 3010, Australia.
James M MurphyWalter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia. jamesm@wehi.edu.au.ORCID http://orcid.org/0000-0003-0195-3949
The University of Melbourne · AUAustralian Nuclear Science and Technology Organisation · AUWalter and Eliza Hall Institute of Medical Research · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Necroptosis is a lytic programmed cell death pathway with origins in innate immunity that is frequently dysregulated in inflammatory diseases. The terminal effector of the pathway, MLKL, is licensed to kill following phosphorylation of its pseudokinase domain by the upstream regulator, RIPK3 kinase. Phosphorylation provokes the unleashing of MLKL's N-terminal four-helix bundle (4HB or HeLo) domain, which binds and permeabilizes the plasma membrane to cause cell death. The precise mechanism by which the 4HB domain permeabilizes membranes, and how the mechanism differs between species, remains unclear. Here, we identify the membrane binding epitope of mouse MLKL using NMR spectroscopy. Using liposome permeabilization and cell death assays, we validate K69 in the α3 helix, W108 in the α4 helix, and R137/Q138 in the first brace helix as crucial residues for necroptotic signaling. This epitope differs from the phospholipid binding site reported for human MLKL, which comprises basic residues primarily located in the α1 and α2 helices. In further contrast to human and plant MLKL orthologs, in which the α3-α4 loop forms a helix, this loop is unstructured in mouse MLKL in solution. Together, these findings illustrate the versatility of the 4HB domain fold, whose lytic function can be mediated by distinct epitopes in different orthologs.

Indexed as

NecroptosisProtein KinasesAnimalsEpitopesHumansMiceNecrosisPhosphorylationReceptor-Interacting Protein Serine-Threonine KinasesEpitopesMLKL protein, humanMLKL protein, mouseProtein KinasesReceptor-Interacting Protein Serine-Threonine Kinases

Identifiers

PMID35264780
PMCPMC9433430
OpenAlexW4221062575

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.