Z-series image of mouse ES cells carrying an alpha-globin BAC transgene array (clone 7d) transduced with a lentivirus containing an expression cassette for EGFP-LacI. EGFP-LacI binding (green) to the...

A grazing section through the edge of the nuclear envelope. This illustrates nuclear envelope pores in face view. Polysomes, chains of ribosomes, are bound to the outer membrane of the nuclear envelop...

Early transmission electron micrographs showing pore details in negatively stained preparations of nuclear envelopes. Upper panel shows the pronounced 8-fold symmetry in the closely spaced pores of t...

Shown are a normal human fibroblasts stained for lamin A (red), a major component of the nuclear lamina. Other images in this group show the envelope abnormalities that occur in HGPS patients carryin...

Transmission electron micrograph of the dense fibrous nuclear lamina (here labeled 'nuclear sheath')closely adpressed to the inner membrane of the nuclear envelope(arrow)in an intestinal epithelial ce...

The image shows a nucleus extracted from the brain of an old (29 month) rat and immuno-stained for tubulin (green)and nuclear pore complexes (red). DNA was stained with DAPI (blue). The intra-nuclear...

Lipid droplet interaction with mitochondria and endoplasmic reticulum in inflammatory neutrophils. The sequence of images in different magnifications shows a transversal sections of the neutrophils. B...

Transmission electron micrograph of a section of Chinchilla epididimus showing the highly lobed nucleus seen in Principal sells of the epididymal epithelium characteristic of many mammals. Figure 111...

Transmission electron micrograph showing the extensive accumulation of darkly stained heterochromatin at the nuclear periphery typical of many differentiated cells. Heterochromatin is excluded from re...

Transmission electron micrographs of Opossum spermatogonia showing different regions within the nucleolus. One region is more lightly staining and fine textured, the other denser and more coarsely tex...