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 1.2 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: https://doi.org/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). 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.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-1A [auth a],
O [auth A]
252Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-2B [auth b],
P [auth B]
250Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-3C [auth c],
Q [auth C]
258Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-4D [auth d],
R [auth D]
254Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
UniProt
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-5E [auth e],
S [auth E]
260Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-6F [auth f],
T [auth F]
234Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
Probable proteasome subunit alpha type-7G [auth g],
U [auth G]
288Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-1H [auth h],
V [auth 1]
215Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-2I [auth i],
W [auth 2]
261Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-3J [auth j],
X [auth 3]
205Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-4K [auth k],
Y [auth 4]
198Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-5L [auth l],
Z [auth 5]
287Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
UniProt
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-6AA [auth 6],
M [auth m]
241Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-7BA [auth 7],
N [auth n]
266Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 15
MoleculeChains Sequence LengthOrganismDetailsImage
26S protease regulatory subunit 7 homologCA [auth H]467Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 16
MoleculeChains Sequence LengthOrganismDetailsImage
26S protease regulatory subunit 4 homologDA [auth I]437Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 17
MoleculeChains Sequence LengthOrganismDetailsImage
26S protease regulatory subunit 6B homologEA [auth K]428Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 18
MoleculeChains Sequence LengthOrganismDetailsImage
26S protease subunit RPT4FA [auth L]437Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 19
MoleculeChains Sequence LengthOrganismDetailsImage
26S protease regulatory subunit 6AGA [auth M]434Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 20
MoleculeChains Sequence LengthOrganismDetailsImage
26S protease regulatory subunit 8 homologHA [auth J]405Saccharomyces cerevisiae S288CMutation(s): 0 
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Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download Ideal Coordinates CCD File 
JA [auth H],
KA [auth I],
MA [auth K],
OA [auth L],
QA [auth M]
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
ADP
Query on ADP

Download Ideal Coordinates CCD File 
SA [auth J]ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
MG
Query on MG

Download Ideal Coordinates CCD File 
IA [auth H]
LA [auth I]
NA [auth K]
PA [auth L]
RA [auth M]
IA [auth H],
LA [auth I],
NA [auth K],
PA [auth L],
RA [auth M],
TA [auth J]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION1.4

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  (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: 2024-05-15
    Changes: Data collection, Database references, Derived calculations