1G0U

A GATED CHANNEL INTO THE PROTEASOME CORE PARTICLE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.303 
  • R-Value Work: 0.250 
  • R-Value Observed: 0.260 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A gated channel into the proteasome core particle.

Groll, M.Bajorek, M.Kohler, A.Moroder, L.Rubin, D.M.Huber, R.Glickman, M.H.Finley, D.

(2000) Nat Struct Biol 7: 1062-1067

  • DOI: 10.1038/80992
  • Primary Citation of Related Structures:  
    1G0U

  • PubMed Abstract: 
  • The core particle (CP) of the yeast proteasome is composed of four heptameric rings of subunits arranged in a hollow, barrel-like structure. We report that the CP is autoinhibited by the N-terminal tails of the outer (alpha) ring subunits. Crystallog ...

    The core particle (CP) of the yeast proteasome is composed of four heptameric rings of subunits arranged in a hollow, barrel-like structure. We report that the CP is autoinhibited by the N-terminal tails of the outer (alpha) ring subunits. Crystallographic analysis showed that deletion of the tail of the alpha 3-subunit opens a channel into the proteolytically active interior chamber of the CP, thus derepressing peptide hydrolysis. In the latent state of the particle, the tails prevent substrate entry by imposing topological closure on the CP. Inhibition by the alpha-subunit tails is relieved upon binding of the regulatory particle to the CP to form the proteasome holoenzyme.


    Organizational Affiliation

    Max-Planck-Institut für Biochemie, D-82152 Martinsried, Germany. groll@biochem.mdg.de



Macromolecules
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEASOME COMPONENT Y13BP245Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 3
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PROTEASOME COMPONENT PRE6CQ243Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 4
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PROTEASOME COMPONENT PUP2DR241Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 5
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PROTEASOME COMPONENT PRE5ES234Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 6
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PROTEASOME COMPONENT C1FT248Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 8
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PROTEASOME COMPONENT PUP1HV222Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 9
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PROTEASOME COMPONENT PUP3IW205Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 10
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PROTEASOME COMPONENT C11JX198Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 11
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PROTEASOME COMPONENT PRE2KY212Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 12
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PROTEASOME COMPONENT C5LZ241Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 13
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PROTEASOME COMPONENT PRE41M266Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 14
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PROTEASOME COMPONENT PRE32N196Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 1
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PROTEASOME COMPONENT Y7AO250Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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Entity ID: 7
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PROTEASOME COMPONENT C7-ALPHAGU252Saccharomyces cerevisiaeMutation(s): 0 
EC: 3.4.99.46 (PDB Primary Data), 3.4.25.1 (UniProt)
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download CCD File 
2, F, G, H, I, K, L, N, T, U, V, W, Y, Z
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.303 
  • R-Value Work: 0.250 
  • R-Value Observed: 0.260 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 135.18α = 90
b = 301.1β = 113
c = 144.1γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-11-06
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance