5GJQ

Structure of the human 26S proteasome bound to USP14-UbAl


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.35 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

An atomic structure of the human 26S proteasome.

Huang, X.Luan, B.Wu, J.Shi, Y.

(2016) Nat Struct Mol Biol 23: 778-785

  • DOI: 10.1038/nsmb.3273
  • Primary Citation of Related Structures:  
    5GJQ, 5GJR

  • PubMed Abstract: 
  • We report the cryo-EM structure of the human 26S proteasome at an average resolution of 3.5 Å, allowing atomic modeling of 28 subunits in the core particle (CP) and 18 subunits in the regulatory particle (RP). The C-terminal residues of Rpt3 and Rpt5 subunits in the RP can be seen inserted into surface pockets formed between adjacent α subunits in the CP ...

    We report the cryo-EM structure of the human 26S proteasome at an average resolution of 3.5 Å, allowing atomic modeling of 28 subunits in the core particle (CP) and 18 subunits in the regulatory particle (RP). The C-terminal residues of Rpt3 and Rpt5 subunits in the RP can be seen inserted into surface pockets formed between adjacent α subunits in the CP. Each of the six Rpt subunits contains a bound nucleotide, and the central gate of the CP α-ring is closed despite RP association. The six pore 1 loops in the Rpt ring are arranged similarly to a spiral staircase along the axial channel of substrate transport, which is constricted by the pore 2 loops. We also determined the cryo-EM structure of the human proteasome bound to the deubiquitinating enzyme USP14 at 4.35-Å resolution. Together, our structures provide a framework for mechanistic understanding of eukaryotic proteasome function.


    Organizational Affiliation

    Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-6 ao239Homo sapiensMutation(s): 0 
Gene Names: PSMB6LMPYY
EC: 3.4.25.1
Find proteins for P28072 (Homo sapiens)
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-6 Bh246Homo sapiensMutation(s): 0 
Gene Names: PSMA6PROS27
EC: 3.4.25.1
Find proteins for P60900 (Homo sapiens)
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-7 bp277Homo sapiensMutation(s): 0 
Gene Names: PSMB7Z
EC: 3.4.25.1
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-2 Ci234Homo sapiensMutation(s): 0 
Gene Names: PSMA2HC3PSC3
EC: 3.4.25.1
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-3 cq205Homo sapiensMutation(s): 0 
Gene Names: PSMB3
EC: 3.4.25.1
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-4 Dj261Homo sapiensMutation(s): 0 
Gene Names: PSMA4HC9PSC9
EC: 3.4.25.1
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-2 dr201Homo sapiensMutation(s): 0 
Gene Names: PSMB2
EC: 3.4.25.1
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-7 Ek248Homo sapiensMutation(s): 0 
Gene Names: PSMA7HSPC
EC: 3.4.25.1
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-5 es263Homo sapiensMutation(s): 0 
Gene Names: PSMB5LMPXMB1X
EC: 3.4.25.1
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Entity ID: 10
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Proteasome subunit alpha type-5 Fl241Homo sapiensMutation(s): 0 
Gene Names: PSMA5
EC: 3.4.25.1
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Entity ID: 11
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Proteasome subunit beta type-1 ft241Homo sapiensMutation(s): 0 
Gene Names: PSMB1PSC5
EC: 3.4.25.1
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Entity ID: 12
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Proteasome subunit alpha type-1 Gm263Homo sapiensMutation(s): 0 
Gene Names: PSMA1HC2NUPROS30PSC2
EC: 3.4.25.1
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Entity ID: 13
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Proteasome subunit beta type-4 gu264Homo sapiensMutation(s): 0 
Gene Names: PSMB4PROS26
EC: 3.4.25.1
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
26S protease regulatory subunit 7 H433Homo sapiensMutation(s): 0 
Gene Names: PSMC2MSS1
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Entity ID: 15
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26S protease regulatory subunit 4 I440Homo sapiensMutation(s): 0 
Gene Names: PSMC1
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Entity ID: 16
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26S protease regulatory subunit 8 J406Homo sapiensMutation(s): 0 
Gene Names: PSMC5SUG1
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Entity ID: 17
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26S protease regulatory subunit 6B K418Homo sapiensMutation(s): 0 
Gene Names: PSMC4MIP224TBP7
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Entity ID: 18
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26S protease regulatory subunit 10B L389Homo sapiensMutation(s): 0 
Gene Names: PSMC6SUG2
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Entity ID: 19
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26S protease regulatory subunit 6A M439Homo sapiensMutation(s): 0 
Gene Names: PSMC3TBP1
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Entity ID: 20
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26S proteasome non-ATPase regulatory subunit 1 N953Homo sapiensMutation(s): 0 
Gene Names: PSMD1
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Entity ID: 21
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Proteasome subunit alpha type-3 Xn255Homo sapiensMutation(s): 0 
Gene Names: PSMA3HC8PSC8
EC: 3.4.25.1
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Entity ID: 22
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26S proteasome non-ATPase regulatory subunit 13 O376Homo sapiensMutation(s): 0 
Gene Names: PSMD13
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Entity ID: 23
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26S proteasome non-ATPase regulatory subunit 12 P456Homo sapiensMutation(s): 0 
Gene Names: PSMD12
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Entity ID: 24
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26S proteasome non-ATPase regulatory subunit 11 Q422Homo sapiensMutation(s): 0 
Gene Names: PSMD11
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Entity ID: 25
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome non-ATPase regulatory subunit 6 R389Homo sapiensMutation(s): 0 
Gene Names: PSMD6KIAA0107PFAAP4
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Entity ID: 26
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26S proteasome non-ATPase regulatory subunit 3 S534Homo sapiensMutation(s): 0 
Gene Names: PSMD3
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Entity ID: 27
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome non-ATPase regulatory subunit 8 T350Homo sapiensMutation(s): 0 
Gene Names: PSMD8
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Entity ID: 28
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26S proteasome non-ATPase regulatory subunit 7 U324Homo sapiensMutation(s): 0 
Gene Names: PSMD7MOV34L
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Entity ID: 29
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome non-ATPase regulatory subunit 14 V310Homo sapiensMutation(s): 0 
Gene Names: PSMD14POH1
EC: 3.4.19
Find proteins for O00487 (Homo sapiens)
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Entity ID: 30
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome non-ATPase regulatory subunit 4 W377Homo sapiensMutation(s): 0 
Gene Names: PSMD4MCB1
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Entity ID: 31
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome complex subunit DSS1 Y70Homo sapiensMutation(s): 0 
Gene Names: SEM1C7orf76DSS1SHFDG1SHFM1
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Entity ID: 32
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome non-ATPase regulatory subunit 2 Z908Homo sapiensMutation(s): 0 
Gene Names: PSMD2TRAP2
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Entity ID: 33
MoleculeChainsSequence LengthOrganismDetailsImage
Ubiquitin carboxyl-terminal hydrolase 14 x494Homo sapiensMutation(s): 0 
Gene Names: USP14TGT
EC: 3.4.19.12
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Entity ID: 34
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Polyubiquitin-B y76Homo sapiensMutation(s): 0 
Gene Names: UBB
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Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
GLZ
Query on GLZ
yL-PEPTIDE LINKINGC2 H5 N OGLY
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.35 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of ChinaChina31130002
National Natural Science Foundation of ChinaChina31321062
National Natural Science Foundation of ChinaChina31430020

Revision History  (Full details and data files)

  • Version 1.0: 2016-08-17
    Type: Initial release
  • Version 1.1: 2018-05-30
    Changes: Data collection, Database references, Derived calculations, Other, Source and taxonomy, Structure summary
  • Version 1.2: 2018-10-24
    Changes: Data collection, Refinement description
  • Version 1.3: 2019-11-06
    Changes: Advisory, Data collection, Derived calculations, Other