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Membrane Transport
Eukaryotes
Receptor-Mediated Endocytosis
Clathrin-coated pit internalization of receptor-ligand complexes.
Overview
Receptor-mediated endocytosis imports macromolecules via clathrin-coated pits. Dynamin mediates vesicle scission. Cargo is sorted in early endosomes for recycling, degradation, or transcytosis.
Cellular Location
Plasma membrane → endosomes → lysosomes
Clinical Significance
Essential for nutrient uptake; exploited by viruses for cell entry; LDLR mutations cause familial hypercholesterolemia.