Maximum intensity projection of a confocal z series of MDCK cells expressing Cx43-GFP-4C imaged with confocal microscopy. This image has been downsampled...

A single frame from a time-lapse animation of FlAsH-labeled MDCK cells expressing Cx43-4C309/337 (green) showing their rearrangement and fate during...

Gap junctions isolated from mouse liver and negatively stained with uranyl formate. At higher magnification, the 8-9 nm particles, or connexons, have...

Upper: a gap junction on the boundary between two hepatic cells shows a typical narrow and straight interface. Lower: in some preparations, gap junctions...

Single computed slice through a double tilt electron tomogram of a lamellar structure observed in HeLa cells transfected with mutant connexin 50, imaged...

Single computed slice through a tomographic reconstruction of a lamellar structure observed in HeLa cells transfected with mutant connexin 50, imaged...

Typical organization of gap junctions as seen in thin sections (upper) and replicas of freeze-fractured cell membranes (middle and lower). Upper, gap...

Replica of a freeze-fractured gap junction presents the inner half-membrane on one of the cells (P-face, lower half of the micrograph) and the the outer...

Gap junctions from a granulosa cell of a rat ovarian follicle. Variability in size of the gap junctions is likely an artifact of the freeze fracture...

Gap junctions in ciliary epithelium under conditions of oxygenation (upper) and anoxia (lower), in tissue prepared by ultrarapid freezing using liquid...