Proteasome: a complex protease with a new fold and a distinct mechanism.
The structure of the proteasome from Thermoplasma acidophilum introduces threonine proteases as a fifth class of proteolytic enzymes, and offers insights into the catalytic activity of this complicated piece of molecular machinery with its 14 active sites.
Wlodawer
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Macromolecular Structure Laboratory, NCI-Frederick Cancer Research and Development Center, MD 21702, USA.
D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000737:chemistry* / Q000648:ultrastructure; D001665:Binding Sites; D018360:Crystallography, X-Ray; D003546:Cysteine Endopeptidases / Q000737:chemistry* / Q000648:ultrastructure; D008854:Microscopy, Electron; D008958:Models, Molecular; D008969:Molecular Sequence Data; D009097:Multienzyme Complexes / Q000737:chemistry* / Q000648:ultrastructure; D046988:Proteasome Endopeptidase Complex; D011487:Protein Conformation; D013822:Thermoplasma / Q000201:enzymology* / Q000648:ultrastructure
D001426:Bacterial Proteins; D009097:Multienzyme Complexes; D003546:Cysteine Endopeptidases; D046988:Proteasome Endopeptidase Complex