HLCS (Holocarboxylase Synthetase): HLCS is crucial for the functioning of carboxylase enzymes, which are important in protein, carbohydrate, and lipid metabolism. Mutations in HLCS can lead to holocarboxylase synthetase deficiency, a rare metabolic disorder characterized by multiple carboxylase deficiency, leading to skin, hair, and immune system problems, as well as developmental delay....