**4. Pathological Mutations in Respiratory Chain and ATP Synthase Human Genes with** *S. cerevisiae* **Homologs**

In this section, the reader will find information on complexes II, III and IV, ATP synthase, Coenzyme Q and cytochrome *c*. All genes with pathogenic variants encoding subunits of the respiratory complexes and ATP synthase will be described. Regarding assembly factors, we have included only the ones that have yeast homologs.
