SLC22A5 (Solute Carrier Family 22 Member 5): SLC22A5, also known as OCTN2, is a crucial carnitine transporter, responsible for the cellular uptake of carnitine, a necessary compound for the transport of fatty acids into mitochondria for oxidation. This process is vital for energy production in various tissues, especially the heart and muscles. Mutations in the SLC22A5 gene can lead to primary carnitine deficiency, a condition characterized by muscle weakness and cardiomyopathy, underscoring its essential role in metabolic health and energy homeostasis....