Receptor Mediated Endocytosis | LDL | Low Density Lipoprotein

Mechanism of Cholesterol Uptake via LDL Particles

Receptor-Mediated Endocytosis Process

• Cells utilize receptor-mediated endocytosis to uptake cholesterol from LDL (Low-Density Lipoprotein) particles.

• The binding of LDL particles occurs through specific receptors that are associated with clathrin molecules.

• As endocytosis initiates, a clathrin-coated pit forms, which eventually engulfs the LDL particle, resulting in the creation of a coated vesicle.

• Clathrin molecules undergo a process called uncoating after the vesicle is formed; they will be recycled for future use.

• The process is influenced by a falling pH level within the vesicle, driven by proton pumps that facilitate this change.