Evidence map›Paper›PMID 41480639›Full record

ArticleNAR cancer2025

Disruption of protein-protein interaction hotspots in the C-terminal domain of MLH1 confers mismatch repair deficiency.

Keri M Fishwick, Diego Gomez Vieito, Giada Greco, Giulio Collotta, Marco Gatti, Anastasija A Kulik, Raphaël Guérois, Ivan Corbeski, Ashutosh S Phadte, Issam Senoussi and 4 more

Abstract read
In one paragraph

Article in NAR cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
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.

Keri M FishwickInstitute of Molecular Cancer Research, University of Zurich, Strickhofstrasse 40a, CH-8057 Zurich, Switzerland.
Diego Gomez VieitoInstitute of Molecular Cancer Research, University of Zurich, Strickhofstrasse 40a, CH-8057 Zurich, Switzerland.
Giada GrecoInstitute of Molecular Cancer Research, University of Zurich, Strickhofstrasse 40a, CH-8057 Zurich, Switzerland.
Giulio CollottaInstitute of Molecular Cancer Research, University of Zurich, Strickhofstrasse 40a, CH-8057 Zurich, Switzerland.
Marco GattiInstitute of Molecular Cancer Research, University of Zurich, Strickhofstrasse 40a, CH-8057 Zurich, Switzerland.
Anastasija A KulikInstitute of Molecular Cancer Research, University of Zurich, Strickhofstrasse 40a, CH-8057 Zurich, Switzerland.
Raphaël GuéroisUniversité Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif-sur-Yvette, France.ORCID 0000-0001-5294-2858
Ivan CorbeskiDepartment of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
Ashutosh S PhadteDepartment of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, United States.
Issam SenoussiFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera Italiana (USI), CH-6500 Bellinzona, Switzerland.
Petr CejkaFaculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera Italiana (USI), CH-6500 Bellinzona, Switzerland.ORCID 0000-0002-9087-032X
Anna PluciennikDepartment of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, United States.ORCID 0000-0003-4868-6024
Antonio PorroInstitute of Molecular Cancer Research, University of Zurich, Strickhofstrasse 40a, CH-8057 Zurich, Switzerland.
Alessandro A SartoriInstitute of Molecular Cancer Research, University of Zurich, Strickhofstrasse 40a, CH-8057 Zurich, Switzerland.ORCID 0000-0003-2770-0333

Funding

Molecular mechanisms of triplet repeat instability in Huntington's diseaseR01NS118082 · NINDS · THOMAS JEFFERSON UNIVERSITY · PI PLUCIENNIK, ANNA · 2021 to 2025
$1.9M
Crosstalk between DNA repair pathways in repeat instabilityR01GM144553 · NIGMS · THOMAS JEFFERSON UNIVERSITY · PI Anna Pluciennik · 2023 to 2026
$1.4M
NIGMS NIH HHS R01 GM144553NINDS NIH HHS R01 NS118082Swiss National Science Foundation 310030_207588 AND 310030_205199Swiss National Science Foundation 31003A_176161 AND 310030_208143
6 · The paper itself

Abstract

MutLα, a heterodimer of MLH1 and PMS2, plays a key role in DNA mismatch repair (MMR), which maintains genomic stability by correcting replication errors. Loss of MLH1 function causes MMR deficiency (MMRd), leading to elevated mutation rates and increased cancer susceptibility. However, MMRd can offer a therapeutic advantage, as high tumour mutational burden enhances the efficacy of immune checkpoint inhibition. MMR also drives somatic expansion of CAG repeats linked to Huntington's disease (HD) pathogenesis. The C-terminal domain (CTD) of MLH1 contains at least two distinct protein-protein interaction (PPI) sites. The S1 site supports heterodimerization with the PMS2 endonuclease, whereas the S2 site interacts with MIP-boxes present in MMR-associated factors (EXO1, MSH3) and in the DNA repair nuclease FAN1. Here, using MLH1-S2 mutant cell models and synthetic FAN1-derived peptides containing two adjacent MLH1-binding motifs (MIP and MIM), we demonstrate that selective disruption of MLH1 PPIs impairs MMR

Indexed as

DNA Mismatch RepairMutL Protein Homolog 1Neoplastic Syndromes, HereditaryBrain NeoplasmsColorectal NeoplasmsEndodeoxyribonucleasesExodeoxyribonucleasesHumansMismatch Repair Endonuclease PMS2Multifunctional EnzymesMutationProtein BindingProtein DomainsProtein Interaction Domains and MotifsEndodeoxyribonucleasesExodeoxyribonucleasesFAN1 protein, humanMismatch Repair Endonuclease PMS2MLH1 protein, humanMultifunctional EnzymesMutL Protein Homolog 1PMS2 protein, human

Identifiers

PMID41480639
PMCPMC12754775

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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.