ArticleFEBS open bio2022
Quantitative analysis of mitochondrial calcium uniporter (MCU) and essential MCU regulator (EMRE) in mitochondria from mouse tissues and HeLa cells.
Article in FEBS open bio, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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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.
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Who cites it
7 citing papers in PubMed, 9 citations in OpenAlex.
- IL1β Functions as a Tumor Suppressor in Papillary Thyroid Carcinoma via the SMDT1-MAPK Signaling Axis.Cancers · 2026Article
- Integrated Bioinformatics and Experimental Validation Reveal the Diagnostic and Prognostic Value of SMDT1 in Thyroid Carcinoma.Diagnostics (Basel, Switzerland) · 2026Article
- Mechano-energetic uncoupling in heart failure.Nature reviews. Cardiology · 2025Review
- Mitochondrial Calcium Uniporter (MCU)-Mediated Calcium Overload in Psychoactive Drug Neurotoxicity: From Pathogenesis to Therapeutic Targets.International journal of molecular sciences · 2025Review
- Knockdown of hepatic mitochondrial calcium uniporter mitigates MASH and fibrosis in mice.Cell & bioscience · 2024Article
- Mitochondrial calcium signaling and redox homeostasis in cardiac health and disease.Frontiers in molecular medicine · 2023Review
- Preserving and enhancing mitochondrial function after stroke to protect and repair the neurovascular unit: novel opportunities for nanoparticle-based drug delivery.Frontiers in cellular neuroscience · 2023Review
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Authors and funding
9 authors at 3 institutions in 1 country.
Funding
Abstract
Mitochondrial calcium homeostasis plays critical roles in cell survival and aerobic metabolism in eukaryotes. The calcium uniporter is a highly selective calcium ion channel consisting of several subunits. Mitochondrial calcium uniporter (MCU) and essential MCU regulator (EMRE) are core subunits of the calcium uniporter required for calcium uptake activity in the mitochondria. Recent 3D structure analysis of the MCU-EMRE complex reconstituted in nanodiscs revealed that the human MCU exists as a tetramer forming a channel pore, with EMRE bound to each MCU at a 1 : 1 ratio. However, the stoichiometry of MCU and EMRE in the mitochondria has not yet been investigated. We here quantitatively examined the protein levels of MCU and EMRE in the mitochondria from mouse tissues by using characterized antibodies and standard proteins. Unexpectedly, the number of EMRE molecules was lower than that of MCU; moreover, the ratios between MCU and EMRE were significantly different among tissues. Statistical calculations based on our findings suggest that a MCU tetramer binding to 4 EMREs may exist, but at low levels in the mitochondrial inner membrane. In brain mitochondria, the majority of MCU tetramers bind to 2 EMREs; in mitochondria in liver, kidney, and heart, MCU tetramers bind to 1 EMRE; and in kidney and heart, almost half of MCU tetramers bound to no EMRE. We propose here a novel stoichiometric model of the MCU-EMRE complex in mitochondria.
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