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| Quick-freeze deep-etch of granulo-fibrillar material (gf) at the crests of the ridges. This material is composed of thinner and shorter filaments that, like the striated bands, appear to bind to the membrane (arrows). The fracture plane also exposed the cell’s exterior. EM taken on 6/4/91 by C. Schroeder with Zeiss 10A TEM. Neg. 19,800X. Bar = 0.25µm. |
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