Evidence map›Paper›PMID 41387689›Full record

ArticleNature communications2025

Elevated intracellular copper induces CTR1 monomerization and prevents copper uptake.

Meng-Hsuan Wen, Huanhuan Chen, Guangjie Yan, Yuteng Zhang, Wenkai Chen, Martin V Dokholyan, Jian Wang, Nikolay V Dokholyan, Tai-Yen Chen

Abstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Review
  2. Balancing cellular copper levels via the post-translational regulation of copper transport.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Review
  3. Review
  4. Review
  5. Targeting multidrug-resistantMaterials today. Bio · 2026
    Article
  6. Article
  7. Review
  8. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Meng-Hsuan Wen *Department of Chemistry, University of Houston, Houston, TX, USA.ORCID http://orcid.org/0000-0003-2043-460X
Huanhuan Chen *Department of Chemistry, University of Houston, Houston, TX, USA.
Guangjie Yan *Department of Chemistry, University of Houston, Houston, TX, USA.
Yuteng ZhangDepartment of Chemistry, University of Houston, Houston, TX, USA.
Wenkai ChenDepartment of Chemistry, University of Houston, Houston, TX, USA.
Martin V DokholyanDepartments of Neuroscience and Experimental Therapeutics, Penn State College of Medicine, Hershey, PA, USA.
Jian WangDepartment of Neurology, University of Virginia, School of Medicine, Charlottesville, VA, USA.ORCID http://orcid.org/0000-0001-7768-2802
Nikolay V DokholyanDepartment of Neurology, University of Virginia, School of Medicine, Charlottesville, VA, USA.ORCID http://orcid.org/0000-0002-8225-4025
Tai-Yen ChenDepartment of Chemistry, University of Houston, Houston, TX, USA. tchen37@central.uh.edu.ORCID http://orcid.org/0000-0002-2881-3068

Funding

Nanoscale programming of cellular and physiological phenotypes: EquipmentR35GM134864 · NIGMS · UNIVERSITY OF VIRGINIA · PI Nikolay Dokholyan · 2020 to 2026
$5.2M
Quantitative Cu-Homeostasis in Live Mammalian Cells at the Single-Molecule LevelR35GM133505 · NIGMS · UNIVERSITY OF HOUSTON · PI CHEN, TAI-YEN · 2019 to 2023
$2.1M
NIGMS NIH HHS R35 GM133505NIGMS NIH HHS R35 GM134864U.S. Department of Health & Human Services | NIH | National Institute of General Medical Sciences (NIGMS) R35GM133505U.S. Department of Health & Human Services | NIH | National Institute of General Medical Sciences (NIGMS) R35GM134864
6 · The paper itself

Abstract

Copper is an essential element involved in various biochemical processes, such as mitochondrial energy production and antioxidant defense, but improper regulation can lead to cellular toxicity and disease. Copper Transporter 1 (CTR1) plays a key role in copper uptake and maintaining cellular copper homeostasis. Although CTR1 endocytosis was previously thought to reduce copper uptake when levels are high, it was unclear how rapid regulation is achieved. Using single-molecule localization microscopy and single-molecule neighbor density assays, we discover that elevated intracellular copper induces monomerization of the wild-type trimeric CTR1 prior to endocytosis, a response blocked in the endocytosis-deficient CTR1 (M150L) mutant. This monomerization correlates with a rapid halt in copper uptake. We propose that changes in CTR1 oligomerization state may regulate endocytosis and copper homeostasis.

Indexed as

Cation Transport ProteinsCopperSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsCopper Transporter 1EndocytosisHomeostasisMutationProtein MultimerizationSingle Molecule ImagingCation Transport ProteinsCopperCopper Transporter 1Saccharomyces cerevisiae Proteins

Identifiers

PMID41387689
PMCPMC12748717

What OpenQuestion holds

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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.