5MPA

26S proteasome in presence of ATP (s2)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural insights into the functional cycle of the ATPase module of the 26S proteasome.

Wehmer, M.Rudack, T.Beck, F.Aufderheide, A.Pfeifer, G.Plitzko, J.M.Forster, F.Schulten, K.Baumeister, W.Sakata, E.

(2017) Proc Natl Acad Sci U S A 114: 1305-1310

  • DOI: 10.1073/pnas.1621129114
  • Primary Citation of Related Structures:  
    5MPA, 5MPC, 5MPB, 5MPE, 5MPD, 5MP9

  • PubMed Abstract: 
  • In eukaryotic cells, the ubiquitin-proteasome system (UPS) is responsible for the regulated degradation of intracellular proteins. The 26S holocomplex comprises the core particle (CP), where proteolysis takes place, and one or two regulatory particles (R ...

    In eukaryotic cells, the ubiquitin-proteasome system (UPS) is responsible for the regulated degradation of intracellular proteins. The 26S holocomplex comprises the core particle (CP), where proteolysis takes place, and one or two regulatory particles (RPs). The base of the RP is formed by a heterohexameric AAA + ATPase module, which unfolds and translocates substrates into the CP. Applying single-particle cryo-electron microscopy (cryo-EM) and image classification to samples in the presence of different nucleotides and nucleotide analogs, we were able to observe four distinct conformational states (s1 to s4). The resolution of the four conformers allowed for the construction of atomic models of the AAA + ATPase module as it progresses through the functional cycle. In a hitherto unobserved state (s4), the gate controlling access to the CP is open. The structures described in this study allow us to put forward a model for the 26S functional cycle driven by ATP hydrolysis.


    Organizational Affiliation

    Department of Molecular Structural Biology, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany; baumeist@biochem.mpg.de sakata@biochem.mpg.de.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-1 Aa252Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: SCL1PRC2PRS2YGL011C
EC: 3.4.25.1
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-2 Bb250Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE8PRS4YML092C
EC: 3.4.25.1
Find proteins for P23639 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-3 Cc258Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE9PRS5YGR135W
EC: 3.4.25.1
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-4 Dd254Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE6YOL038W
EC: 3.4.25.1
Find proteins for P40303 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-5 Ee260Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PUP2DOA5YGR253CG9155
EC: 3.4.25.1
Find proteins for P32379 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 6
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Proteasome subunit alpha type-6 Ff234Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE5YMR314WYM9924.06
EC: 3.4.25.1
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Entity ID: 7
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Probable proteasome subunit alpha type-7 Gg288Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE10PRC1PRS1YOR362CO6650
EC: 3.4.25.1
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Entity ID: 8
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Proteasome subunit beta type-1 1h215Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE3YJL001WJ1407
EC: 3.4.25.1
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Entity ID: 9
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Proteasome subunit beta type-2 2i261Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PUP1YOR157C
EC: 3.4.25.1
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Entity ID: 10
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Proteasome subunit beta type-3 3j205Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PUP3YER094C
EC: 3.4.25.1
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Entity ID: 11
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Proteasome subunit beta type-4 4k198Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE1YER012W
EC: 3.4.25.1
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Entity ID: 12
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Proteasome subunit beta type-5 5l287Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE2DOA3PRG1YPR103WP8283.10
EC: 3.4.25.1
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Entity ID: 13
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Proteasome subunit beta type-6 6m241Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE7PRS3PTS1YBL041WYBL0407
EC: 3.4.25.1
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Entity ID: 14
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Proteasome subunit beta type-7 7n266Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE4YFR050C
EC: 3.4.25.1
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Entity ID: 15
MoleculeChainsSequence LengthOrganismDetailsImage
26S protease regulatory subunit 7 homolog H467Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT1CIM5YTA3YKL145W
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Entity ID: 16
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26S protease regulatory subunit 4 homolog I437Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT2YHS4YTA5YDL007WD2920
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Entity ID: 17
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26S protease regulatory subunit 6B homolog K428Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT3YNT1YTA2YDR394WD9509.14
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Entity ID: 18
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26S protease subunit RPT4 L437Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT4CRL13PCS1SUG2YOR259C
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Entity ID: 19
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26S protease regulatory subunit 6A M434Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT5YTA1YOR117WO3258YOR3258W
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Entity ID: 20
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26S protease regulatory subunit 8 homolog J405Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT6CIM3CRL3SUG1TBPYTBY1YGL048C
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermanySFB-1035
National Science FoundationUnited StatesPHY1430124
National Institutes of HealthUnited States9P41GM104601

Revision History 

  • Version 1.0: 2017-03-08
    Type: Initial release
  • Version 1.1: 2017-08-02
    Changes: Data collection