ABCG5 (ATP Binding Cassette Subfamily G Member 5): ABCG5 is part of the ATP-binding cassette transporter family and plays a crucial role in the regulation of dietary cholesterol. It functions in tandem with another gene, ABCG8, to limit intestinal absorption and promote the excretion of sterols from the body. Mutations in ABCG5 are associated with sitosterolemia, a rare disorder characterized by high levels of plant sterols in blood, leading to atherosclerosis and other cardiovascular issues....