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 

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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 A, a252Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: SCL1, PRC2, PRS2, YGL011C
EC: 3.4.25.1
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-2 B, b250Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE8, PRS4, YML092C
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 C, c258Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE9, PRS5, YGR135W
EC: 3.4.25.1
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-4 D, d254Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE6, YOL038W
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 E, e260Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PUP2, DOA5, YGR253C, G9155
EC: 3.4.25.1
Find proteins for P32379 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-6 F, f234Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE5, YMR314W, YM9924.06
EC: 3.4.25.1
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
Probable proteasome subunit alpha type-7 G, g288Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE10, PRC1, PRS1, YOR362C, O6650
EC: 3.4.25.1
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Entity ID: 8
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Proteasome subunit beta type-1 1, h215Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE3, YJL001W, J1407
EC: 3.4.25.1
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Entity ID: 9
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Proteasome subunit beta type-2 2, i261Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PUP1, YOR157C
EC: 3.4.25.1
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Entity ID: 10
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Proteasome subunit beta type-3 3, j205Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PUP3, YER094C
EC: 3.4.25.1
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Entity ID: 11
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Proteasome subunit beta type-4 4, k198Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE1, YER012W
EC: 3.4.25.1
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-5 5, l287Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE2, DOA3, PRG1, YPR103W, P8283.10
EC: 3.4.25.1
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Entity ID: 13
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Proteasome subunit beta type-6 6, m241Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE7, PRS3, PTS1, YBL041W, YBL0407
EC: 3.4.25.1
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Entity ID: 14
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Proteasome subunit beta type-7 7, n266Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRE4, YFR050C
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: RPT1, CIM5, YTA3, YKL145W
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Entity ID: 16
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26S protease regulatory subunit 4 homolog I437Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT2, YHS4, YTA5, YDL007W, D2920
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Entity ID: 17
MoleculeChainsSequence LengthOrganismDetailsImage
26S protease regulatory subunit 6B homolog K428Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT3, YNT1, YTA2, YDR394W, D9509.14
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Entity ID: 18
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26S protease subunit RPT4 L437Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT4, CRL13, PCS1, SUG2, YOR259C
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Entity ID: 19
MoleculeChainsSequence LengthOrganismDetailsImage
26S protease regulatory subunit 6A M434Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT5, YTA1, YOR117W, O3258, YOR3258W
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Entity ID: 20
MoleculeChainsSequence LengthOrganismDetailsImage
26S protease regulatory subunit 8 homolog J405Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPT6, CIM3, CRL3, SUG1, TBPY, TBY1, YGL048C
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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