A high resolution image of a cell actively undergoing endocytosis that develops an extensive layer of vesicles and cisternae composed for the most part of smooth undecorated membrane. The uncoated cis...

The remarkable soccer ball-like structure of coated vesicles is revealed through negative staining, and the inset panel shows a candidate model of the lattice structure. Coating of vesicles is import...

Cross fracture of cilia of the quadrulus. The basal body/cilium complexes are a little less tightly packed than in the peniculus. There are four or five rows of parasomal sacs interspersed with basal...

A high resolution view of the contractile, sub-cortical myonemal sheet of Opercularia coarctata. Decorated ER tubules are intimately associated with the myonemal sheet. And pellicular pores or clathri...

A view of the contractile, sub-cortical myonemal sheet of Opercularia coarctata. It is decorated with ER tubules that are intimately associated with the myonemal sheet. And pellicular pores or clathri...

High resolution image of vesicles and early endosomes under the membranelles of the peniculus of the buccal cavity. Cilia and basal bodies are tangentially fractured in this quick-freeze deep-etch pre...

Quick-freeze deep-etch rotary-shadowed replica of an early endosome with two clathrin-coated evaginations. Presumably these coated pits contain receptors for cargo that will be pinched off from the ea...

Cultured retinal pigment epithelial cells immunofluorescently labeled for adaptor protein-2 (AP2) (green) and nucleus (blue). The cells were fixed in 2% PFA and 0.5% Triton X-100 for 2 minutes follow...

A high resolution of a quick-freeze deep-etch rotary shadowed replica of a parasomal sac from which a clathrin-coated preendosomal vesicle has pinched off. The typical clathrin cage structure is prese...

Higher resolution of the area that shows the clathrin-coated cage near the peniculus and clathrin coated preendosomal and partially coated preendosomal vesicles. Early endosomes like the preendosomal ...