Proteasome electron micrograph

Fig. n.i. 20S and 26S proteasomes. Image-averaged electron micrographs of 20S and 26S proteasomes from bovine red blood cells. 20S proteasome capped on one or both ends by PA700/19S RP[11]. 

Figure 1. Composite model of the three-dimensional (3-D) stmcture of the 26S proteasome combining a 3-D reconstitution from electron micrographs of Drosophila 26S complexes and the crystal structure of the Thermoplasma 20S proteasome (Walz et al. 1998). Below, the 20S structure is cut open along the seven-fold axis for display of the three inner compartments in the central compartment 8 of the 14 active sites are marked in black.

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