SLC44A1 (Solute Carrier Family 44 Member 1) is a gene that encodes a protein responsible for transporting choline, an essential nutrient involved in the production of the neurotransmitter acetylcholine and the maintenance of cell membrane structure. This transporter supports vital processes such as nerve signalling and cell health. Disruptions in choline transport may impact brain function and have been associated with neurological disorders like Alzheimer’s disease.