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Science 28 April 1995:
Vol. 268. no. 5210, pp. 533 - 539
DOI: 10.1126/science.7725097

Articles

Science, Vol 268, Issue 5210, 533-539
Copyright © 1995 by American Association for the Advancement of Science


articles

Crystal structure of the 20S proteasome from the archaeon T. acidophilum at 3.4 A resolution

J Lowe, D Stock, B Jap, P Zwickl, W Baumeister, and R Huber

Max-Planck-Institut fur Biochemie, Abteilung fur Strukturforschung, Martinsried, Germany.

The three-dimensional structure of the proteasome from the archaebacterium Thermoplasma acidophilum has been elucidated by x-ray crystallographic analysis by means of isomorphous replacement and cyclic averaging. The atomic model was built and refined to a crystallographic R factor of 22.1 percent. The 673-kilodalton protease complex consists of 14 copies of two different subunits, alpha and beta, forming a barrel-shaped structure of four stacked rings. The two inner rings consist of seven beta subunits each, and the two outer rings consist of seven alpha subunits each. A narrow channel controls access to the three inner compartments. The alpha 7 beta 7 beta 7 alpha 7 subunit assembly has 72-point group symmetry. The structures of the alpha and beta subunits are similar, consisting of a core of two antiparallel beta sheets that is flanked by alpha helices on both sides. The binding of a peptide aldehyde inhibitor marks the active site in the central cavity at the amino termini of the beta subunits and suggests a novel proteolytic mechanism.


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J. Biol. Chem. 275, 5238-5247
   Abstract »    Full Text »    PDF »
Mapping Subunit Contacts in the Regulatory Complex of the 26 S Proteasome. S2 AND S5b FORM A TETRAMER WITH ATPase SUBUNITS S4 and S7.
C. Gorbea, D. Taillandier, and M. Rechsteiner (2000)
J. Biol. Chem. 275, 875-882
   Abstract »    Full Text »    PDF »
Evidence for a Role of ClpP in the Degradation of the Chloroplast Cytochrome b6f Complex.
W. Majeran, F.-A. Wollman, and O. Vallon (2000)
PLANT CELL 12, 137-150
   Abstract »    Full Text »    PDF »
Structural and Functional Characterizations of the Proteasome-activating Protein PA26 from Trypanosoma brucei.
Y. Yao, L. Huang, A. Krutchinsky, M.-L. Wong, K. G. Standing, A. L. Burlingame, and C. C. Wang (1999)
J. Biol. Chem. 274, 33921-33930
   Abstract »    Full Text »    PDF »
Intrinsic Nucleoside Diphosphate Kinase-like Activity Is a Novel Function of the 20 S Proteasome.
M. Yano, S. Mori, and H. Kido (1999)
J. Biol. Chem. 274, 34375-34382
   Abstract »    Full Text »    PDF »
The catalytic sites of 20S proteasomes and their role in subunit maturation: A mutational and crystallographic study.
M. Groll, W. Heinemeyer, S. Jager, T. Ullrich, M. Bochtler, D. H. Wolf, and R. Huber (1999)
PNAS 96, 10976-10983
   Abstract »    Full Text »    PDF »
Chaperone rings in protein folding and degradation.
A. L. Horwich, E. U. Weber-Ban, and D. Finley (1999)
PNAS 96, 11033-11040
   Abstract »    Full Text »    PDF »
Halophilic 20S Proteasomes of the Archaeon Haloferax volcanii: Purification, Characterization, and Gene Sequence Analysis.
H. L. Wilson, H. C. Aldrich, and J. Maupin-Furlow (1999)
J. Bacteriol. 181, 5814-5824
   Abstract »    Full Text »
An Archaebacterial ATPase, Homologous to ATPases in the Eukaryotic 26 S Proteasome, Activates Protein Breakdown by 20 S Proteasomes.
P. Zwickl, D. Ng, K. M. Woo, H.-P. Klenk, and A. L. Goldberg (1999)
J. Biol. Chem. 274, 26008-26014
   Abstract »    Full Text »    PDF »
Follicle cell proteasome activity and acid extract from the egg vitelline coat prompt the onset of self-sterility in Ciona intestinalis oocytes.
R. Marino, R. De Santis, P. Giuliano, and M. R. Pinto (1999)
PNAS 96, 9633-9636
   Abstract »    Full Text »    PDF »
The Proteasome, a Novel Protease Regulated by Multiple Mechanisms.
G. N. DeMartino and C. A. Slaughter (1999)
J. Biol. Chem. 274, 22123-22126
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UV Stimulation of Chromosomal Marker Exchange in Sulfolobus acidocaldarius: Implications for DNA Repair, Conjugation and Homologous Recombination at Extremely High Temperatures.
K. J. Schmidt, K. E. Beck, and D. W. Grogan (1999)
Genetics 152, 1407-1415
   Abstract »    Full Text »
Multiubiquitin Chain Binding Subunit MCB1 (RPN10) of the 26S Proteasome Is Essential for Developmental Progression in Physcomitrella patens.
P.-A. Girod, H. Fu, J.-P. Zryd, and R. D. Vierstra (1999)
PLANT CELL 11, 1457-1472
   Abstract »    Full Text »
Mitochondrial Lon of Saccharomyces cerevisiae is a ring-shaped protease with seven flexible subunits.
H. Stahlberg, E. Kutejova, K. Suda, B. Wolpensinger, A. Lustig, G. Schatz, A. Engel, and C. K. Suzuki (1999)
PNAS 96, 6787-6790
   Abstract »    Full Text »    PDF »



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