<prompt> Receptor mediated endocytosis requires:ClatharinDynaminActinAll of the above  <response>: Clathrin-mediated endocytosis occurs at membrane indentations where the protein clathrin accumulates. Clathrin molecules have the shape of triskelions, with three legs radiating from a central hub. At the neck of the vesicle, the GTP-binding protein dynamin is involved, either directly or indirectly, in pinching off the vesicle. Contractile filaments of actin and myosin are also involved. 