Evidence map›Paper›PMID 41688454›Full record

ArticleNature communications2026

Dual recruitment of two CCM2 molecules to KRIT1 suppresses KLF4 expression.

Clotilde Huet-Calderwood, Oriana S Fisher, Sreya Das, Valerie L Su, Titus J Boggon, David A Calderwood

Abstract read
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Clotilde Huet-Calderwood *Department of Pharmacology, Yale University, New Haven, CT, USA.
Oriana S Fisher *Department of Pharmacology, Yale University, New Haven, CT, USA.
Sreya DasDepartment of Pharmacology, Yale University, New Haven, CT, USA.
Valerie L SuDepartment of Pharmacology, Yale University, New Haven, CT, USA.
Titus J BoggonDepartment of Pharmacology, Yale University, New Haven, CT, USA. titus.boggon@yale.edu.ORCID http://orcid.org/0000-0003-2862-1637
David A CalderwoodDepartment of Pharmacology, Yale University, New Haven, CT, USA. david.calderwood@yale.edu.ORCID http://orcid.org/0000-0002-0791-4142

Funding

Signaling mechanisms of the cerebral cavernous malformations protein complexR01NS134606 · NINDS · YALE UNIVERSITY · PI Titus Jonathon Boggon, DAVID A CALDERWOOD · 2024 to 2026
$1.7M
Phosphorylation of ICAP1 inhibits its nuclear accumulation to modulate integrin and CCM signalingF31HL143831 · NHLBI · YALE UNIVERSITY · PI SU, VALERIE LIAO · 2018 to 2020
$82k
American Heart Association (American Heart Association, Inc.) 961309NHLBI NIH HHS F31 HL143831NINDS NIH HHS R01 NS134606U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS) R01NS134606
6 · The paper itself

Abstract

Regulated expression of Kruppel like factor (KLF) transcription factors is essential for normal maintenance of endothelial cells, but loss of either K-Rev interaction trapped 1 (KRIT1) or cerebral cavernous malformations 2 (CCM2) proteins results in significant over-expression of KLF4 protein, causing the cerebrovascular disorder, cerebral cavernous malformations. Here, combining knockdown and reconstitution in an endothelial cell line, with co-immunoprecipitation, biophysical analysis of purified proteins, and co-crystallography, we find that to restrain KLF4 expression, two CCM2 proteins must cluster on a single KRIT1, with the PTB domain of each CCM2 protein binding either the second or third NPxF motif within KRIT1. This clustering of two PTB domains to a single peptide reveals a previously unobserved mechanism for PTB domain recruitment to partner proteins. Overall, our data support a model where clustering of two CCM2 molecules to one KRIT1 is required for normal regulation of expression of KLF4 transcription factor.

Indexed as

Carrier ProteinsKRIT1 ProteinKruppel-Like Transcription FactorsMicrotubule-Associated ProteinsAnimalsGene Expression RegulationHumansKruppel-Like Factor 4Protein BindingProtein DomainsCarrier ProteinsKLF4 protein, humanKlf4 protein, mouseKRIT1 ProteinKRIT1 protein, humanKruppel-Like Factor 4Kruppel-Like Transcription FactorsMicrotubule-Associated Proteins

Identifiers

PMID41688454
PMCPMC13013565

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LicenceCC BY-NC-ND
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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.