Fine structure of the gap junction in the tunicate heart

@article{Lorber2004FineSO,
  title={Fine structure of the gap junction in the tunicate heart},
  author={V. Lorber and D. G. Rayns},
  journal={Cell and Tissue Research},
  year={2004},
  volume={179},
  pages={169-175}
}
SummaryThe plasma membranes of the tunicate heart exhibit an abundance of macular gap junctions distributed widely over the membrane surface. A study of these junctions by the freeze-etch technique was undertaken in an effort to elucidate the fine structure of this important membrane modification in a primitive heart. In cross or near-cross fractured junctions the junctional particles in contiguous membranes appear to be paired in register and to meet in the midline. In favorable face views… 

Organization and function of septate junctions

TLDR
An evolutionary perspective of septate junctions is presented, especially their initial identification across phyla, and many common features of their morphology, molecular organization, and functional similarities in invertebrates and vertebrates are discussed.

Pharmacological analysis of the transmembrane action potential configuration in myoepithelial cells of the spontaneously beating heart of the ascidian Styela rustica in vitro

TLDR
It is concluded that the key role in the automaticity of the ascidian heart is played by the outward K+ currents, Na+ Currents, activated hyperpolarization current If and a current of unknown nature IX.

Unusual features of intercellular junctions in the larvacean Oikopleura dioica

TLDR
The tight junctions found in the pelagic larvacean Oikopleura dioica are unusual in that they are associated with a dense cytoplasmic fuzz which is normally more characteristic of zonulae adhaerentes.

References

SHOWING 1-10 OF 21 REFERENCES

Cellular junctions in the tunicate heart.

TLDR
The cell membranes of the tunicate heart exhibit an abundance of macular close junctions, distributed more or less randomly over the intercellular surfaces, and a system of zonal tight junctions limited to the cell borders adjacent to the epicardial surface.

Structure and function of intercellular junctions.

The ultrastructure of the nexus. A correlated thin-section and freeze-cleave study.

TLDR
It is postulated that central hydrophilic channels may extend through the subunit assembly to provide a direct route for intercellular communication.

LOW RESISTANCE JUNCTIONS IN CRAYFISH

The ultrastructure of low resistance junctions between segments of lateral giant fibers in crayfish is studied in sections from specimens fixed either by conventional methods or by

LOW RESISTANCE JUNCTIONS IN CRAYFISH I. Two Arrays of Globules in Junctional Membranes

The ultrastructure of low resistance junctions between segments of lateral giant fibers in crayfish is studied in sections from specimens fixed either by conventional methods or by

TRANSLATIONAL MOBILITY OF THE MEMBRANE INTERCALATED PARTICLES OF HUMAN ERYTHROCYTE GHOSTS

TLDR
The results are consistent with the concept that the erythrocyte ghost membrane is a planar fluid domain formed by a bilayer membrane continuum which is interrupted by localized, yet mobile, proteic intercalations.

Fracture faces in frozen outer segments from the guinea pig retina

TLDR
Evidence is presented that the disc membranes split during fracture and that the two faces seen in freeze-etched replicas are apposed in the intact membrane.

BULK ISOLATION OF MOUSE HEPATOCYTE GAP JUNCTIONS

TLDR
Electron microscopy with thin-sectioning and negative staining techniques reveals that the final pellet is a very pure preparation of gap junctions, accompanied by a small amount of amorphous contamination.

FREEZE-FRACTURED MYOSIN FILAMENTS

TLDR
This research presents a novel and scalable approach that allows for real-time, 3D analysis of the response of the immune system to EMTs.