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. Author manuscript; available in PMC: 2009 Mar 1.
Published in final edited form as: J Struct Biol. 2007 Sep 29;161(3):298–313. doi: 10.1016/j.jsb.2007.09.015

Table 1.

A comparative summary of quantitative data derived for insulin granules, multi-vesicular bodies and the Golgi ribbon in datasets ribbon01 and ribbon02

ribbon01 ribbon02
Mature granules: Total number 3370 8250
Mean diametera 280 ± 0.84 nm 245 ± 0.43 nm
Estimated total volume 42.6 µm3 68.4 µm3
Immature granules: Total number 700 520
Estimated total volume 5.6 µm3 5.0 µm3
Multi-vesicular bodies: Total number 28 12
Estimated total volume 0.39 µm3 3.7 µm3
Golgi: Estimated volume of main stack 3.6 µm3 3.1 µm3
Estimated volume of penultimate trans cisterna 0.35 µm3 NA
Estimated volume of trans-most cisterna 1.9 µm3 0.53 µm3
Estimated total volume 5.8 µm3 3.7 µm3
Estimated membrane SA of main Golgi ribbon b 310 µm2 230 µm2
Estimated membrane SA of penultimate trans cisterna 13.4 µm2 NA
Estimated membrane SA of trans-most cisterna 52.7 µm2 30.4 µm2
Estimated total membrane SA 380 µm2 260 µm2
a

Results are expressed as mean ± SEM