STARD3 (StAR-Related Lipid Transfer Domain Containing 3): STARD3 is involved in cholesterol trafficking and homeostasis within cells, particularly between endosomes and the plasma membrane or endoplasmic reticulum. It belongs to the START domain family, known for sterol and lipid transport. Alterations in STARD3 function can affect cellular cholesterol distribution, potentially impacting processes such as membrane composition, signaling, and the development of atherosclerosis....