@article {2687,
	title = {Proteasome from Thermoplasma acidophilum: A Threonine Protease},
	journal = {Science},
	volume = {268},
	year = {1995},
	pages = {579-582},
	author = {Seemuller, Erika and Lupas, Andrei N. and Stock, Daniela and Lowe, Jan and others}
}
