ArticleCells2026
Disruption of Fructose 1,6-Bisphosphatase 2 Proximity to MIC60 Correlates with Mitochondrial Ultrastructural Changes.
Article in Cells, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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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Authors and funding
5 authors.
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Abstract
Fructose 1,6-bisphosphatase 2 (FBP2) is a multifunctional protein whose cellular functions depend on its oligomeric state. Forced FBP2 tetramerization has been linked to microtubule disruption and impaired mitochondrial trafficking, accompanied by abnormal mitochondrial morphology. Here, we identify MIC60 (mitofilin), a core element of the mitochondrial contact site and cristae organizing system (MICOS), as a potential mediator of these effects. Using proximity ligation assay, protein crosslinking combined with mass spectrometry, and ultrastructural analysis, we demonstrate that FBP2 is in close proximity to MIC60 under basal conditions and this proximity is reduced upon FBP2 tetramerization or partial FBP2 depletion. Loss of this proximity coincides with marked remodeling of inner-membrane ultrastructure. These findings are consistent with a working model in which dimeric FBP2 contributes to the coordination of microtubule-dependent mitochondrial positioning with MICOS-linked intramitochondrial organization, providing a plausible mechanistic bridge between metabolic cues (AMP/NAD
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