LAMP‐2A localizes in cholesterol‐ and GM‐1‐enriched intracellular membrane domains. Mouse fibroblasts grown on coverslips in the presence (+) or absence (−) of serum were fixed and labeled with filipin (red) (A) or incubated with Texas‐Red‐cholera toxin B subunit to label GM‐1‐enriched membrane regions (red) and then fixed. 