5MPE

26S proteasome in presence of ATP (s2)

Experimental Data Snapshot

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

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This is version 1.2 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:  
    5MP9, 5MPA, 5MPB, 5MPC, 5MPD, 5MPE

  • 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 (RPs) ...

    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
26S proteasome regulatory subunit RPN10A [auth W]268Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN10, MCB1, SUN1, YHR200W
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Entity ID: 2
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Ubiquitin carboxyl-terminal hydrolase RPN11B [auth V]306Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN11, MPR1, YFR004W
EC: 3.4.19.12
UniProt
Find proteins for P43588 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 3
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26S proteasome regulatory subunit RPN12C [auth T]274Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN12, NIN1, YFR052W
UniProt
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Entity ID: 4
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26S proteasome regulatory subunit RPN13D [auth X]156Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN13, DAQ1, YLR421C
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome complex subunit SEM1E [auth Y]89Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: SEM1, DSH1, YDR363W-A
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Entity ID: 6
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26S proteasome regulatory subunit RPN1F [auth Z]993Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN1, HRD2, NAS1, RPD1, YHR027C
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Entity ID: 7
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26S proteasome regulatory subunit RPN2G [auth N]945Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN2, SEN3, YIL075C
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Entity ID: 8
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26S proteasome regulatory subunit RPN3H [auth S]523Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN3, SUN2, YER021W
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Entity ID: 9
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26S proteasome regulatory subunit RPN5I [auth P]445Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN5, NAS5, YDL147W, D1572
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Entity ID: 10
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26S proteasome regulatory subunit RPN6J [auth Q]434Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN6, NAS4, YDL097C, D2381
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Entity ID: 11
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26S proteasome regulatory subunit RPN7K [auth R]429Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN7, YPR108W, P8283.8
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Entity ID: 12
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26S proteasome regulatory subunit RPN8L [auth U]338Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN8, YOR261C, O5360
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Entity ID: 13
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26S proteasome regulatory subunit RPN9M [auth O]393Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPN9, NAS7, YDR427W, D9461.14
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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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View more in-depth experimental data

Entry History & Funding Information

Deposition Data

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

Revision History  (Full details and data files)

  • Version 1.0: 2017-03-08
    Type: Initial release
  • Version 1.1: 2017-08-02
    Changes: Data collection
  • Version 1.2: 2018-10-24
    Changes: Advisory, Data collection, Derived calculations