Mitofusin 2: A link between mitochondrial function and substrate metabolism?

Mitochondrion. 2021 Nov:61:125-137. doi: 10.1016/j.mito.2021.09.003. Epub 2021 Sep 15.

Abstract

Mitochondria are dynamic, interactive organelles that connect cellular signaling and whole-cell homeostasis. This "mitochatting" allows the cell to receive information about the mitochondria's condition before accommodating energy demands. Mitofusin 2 (Mfn2), an outer mitochondrial membrane fusion protein specializes in mediating mitochondrial homeostasis. Early studies defined the biological significance of Mfn2, while latter studies highlighted its role in substrate metabolism. However, determining Mfn2 potential to contribute to energy homeostasis needs study. This review summarizes current literature on mitochondrial metabolic processes, dynamics, and evidence of interactions among Mfn2 and regulatory processes that may link Mfn2's role in maintaining mitochondrial function and substrate metabolism.

Keywords: Fatty acid oxidation; Fission; Fusion; Glycolysis; Mitochondrial dynamics; Mitophagy.

Publication types

  • Review

MeSH terms

  • Animals
  • Energy Metabolism
  • GTP Phosphohydrolases / genetics
  • GTP Phosphohydrolases / metabolism*
  • Gene Expression Regulation / physiology
  • Humans
  • Mitochondria / metabolism*
  • Mitochondrial Proteins / genetics
  • Mitochondrial Proteins / metabolism*

Substances

  • Mitochondrial Proteins
  • GTP Phosphohydrolases
  • MFN2 protein, human