FDX2 and Mitochondrial myopathy: The importance of this electron transfer chain is reflected by severe genetic diseases including mitochondrial myopathy and sensory neuropathies, generated by pathogenic mutations in either human FDX2 or FDXR genes (Camponeschi et al. 2022; Gurgel‐Giannetti et al. 2018; Lebigot et al. 2021; Paul et al. 2017; Spiegel et al. 2014).