Membrane assembly in retinal photoreceptors I. Freeze-fracture analysis of cytoplasmic vesicles in relationship to disc assembly

@article{Besharse1980MembraneAI,
  title={Membrane assembly in retinal photoreceptors I. Freeze-fracture analysis of cytoplasmic vesicles in relationship to disc assembly},
  author={Joseph C. Besharse and Karl H. Pfenninger},
  journal={The Journal of Cell Biology},
  year={1980},
  volume={87},
  pages={451 - 463}
}
To study precursor-product relationships between cytoplasmic membranes of the inner segment of photoreceptors and the continually renewed outer disc membrane, we have compared the density and size distribution of intramembrane particles (IMP) in various membrane compartments of freeze-fractured photoreceptor inner and outer segments. Both rod and cone outer segments of Xenopus laevis are characterized by a relatively uniform distribution of approximately 4,400-4,700 IMP/micron2 in P-face (PF… CONTINUE READING
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