The three-dimensional structure of proteasomes from Thermoplasma acidophilum as 
determined by electron microscopy using random conical tilting

Hegerl, R.; Pfeifer, G.; Pühler, G.; Dahlmann, B.; Baumeister, W.

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The three-dimensional structure of proteasomes from Thermoplasma acidophilum as determined by electron microscopy using random conical tilting

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Hegerl, R., Pfeifer, G., Pühler, G., Dahlmann, B., & Baumeister, W. (1991). The three-dimensional structure of proteasomes from Thermoplasma acidophilum as determined by electron microscopy using random conical tilting. FEBS Letters., 283(1), 117-121.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-7451-3

Abstract

The three-dimensional structure of proteasomes from the archaebacterium Thermoplasma acidophilum has been determined to a resolution of approximately 2 nm from electron micrographs of negatively stained preparations using the method of 'random conical tilting'. The particles turn out to be essentially cylinder-shaped barrels, 15 nm long and 11 nm wide, enclosing a tripartite inner compartiment. An account is given of some of the present limitations which prevent to attain a higher resolution and possible ways to overcome these limitations are indicated.