5GJR

An atomic structure of the human 26S proteasome


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.50 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

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
26S protease regulatory subunit 4A [auth I], VA [auth w]440Homo sapiensMutation(s): 0 
Gene Names: PSMC1
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
26S protease regulatory subunit 7B [auth H], UA [auth v]433Homo sapiensMutation(s): 0 
Gene Names: PSMC2MSS1
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
26S protease regulatory subunit 10BC [auth L], YA [auth z]389Homo sapiensMutation(s): 0 
Gene Names: PSMC6SUG2
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
26S protease regulatory subunit 6AZA [auth 0], D [auth M]439Homo sapiensMutation(s): 0 
Gene Names: PSMC3TBP1
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
26S protease regulatory subunit 8E [auth J], WA [auth x]406Homo sapiensMutation(s): 0 
Gene Names: PSMC5SUG1
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
26S protease regulatory subunit 6BF [auth K], XA [auth y]418Homo sapiensMutation(s): 0 
Gene Names: PSMC4MIP224TBP7
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome non-ATPase regulatory subunit 1AB [auth 1], G [auth N]953Homo sapiensMutation(s): 0 
Gene Names: PSMD1
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome non-ATPase regulatory subunit 13BB [auth 2], H [auth O]376Homo sapiensMutation(s): 0 
Gene Names: PSMD13
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Entity ID: 9
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26S proteasome non-ATPase regulatory subunit 12CB [auth 3], I [auth P]456Homo sapiensMutation(s): 0 
Gene Names: PSMD12
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Entity ID: 10
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26S proteasome non-ATPase regulatory subunit 11DB [auth 4], J [auth Q]422Homo sapiensMutation(s): 0 
Gene Names: PSMD11
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Entity ID: 11
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26S proteasome non-ATPase regulatory subunit 6EB [auth 5], K [auth R]389Homo sapiensMutation(s): 0 
Gene Names: PSMD6KIAA0107PFAAP4
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Entity ID: 12
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26S proteasome non-ATPase regulatory subunit 3FB [auth 6], L [auth S]525Homo sapiensMutation(s): 0 
Gene Names: PSMD3
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome non-ATPase regulatory subunit 8GB [auth 7], M [auth T]350Homo sapiensMutation(s): 0 
Gene Names: PSMD8
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome non-ATPase regulatory subunit 7HB [auth 8], N [auth U]324Homo sapiensMutation(s): 0 
Gene Names: PSMD7MOV34L
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Entity ID: 15
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome non-ATPase regulatory subunit 14IB [auth 9], O [auth V]310Homo sapiensMutation(s): 0 
Gene Names: PSMD14POH1
EC: 3.4.19
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Entity ID: 16
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26S proteasome non-ATPase regulatory subunit 4JB [auth AA], P [auth W]377Homo sapiensMutation(s): 0 
Gene Names: PSMD4MCB1
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Entity ID: 17
MoleculeChainsSequence LengthOrganismDetailsImage
26S proteasome complex subunit DSS1KB [auth AB], Q [auth Y]70Homo sapiensMutation(s): 0 
Gene Names: SEM1C7orf76DSS1SHFDG1SHFM1
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Entity ID: 18
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26S proteasome non-ATPase regulatory subunit 2LB [auth AC], R [auth Z]908Homo sapiensMutation(s): 0 
Gene Names: PSMD2TRAP2
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Entity ID: 19
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-6S [auth B], GA [auth h]246Homo sapiensMutation(s): 0 
Gene Names: PSMA6PROS27
EC: 3.4.25.1
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Entity ID: 20
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-2T [auth C], HA [auth i]234Homo sapiensMutation(s): 0 
Gene Names: PSMA2HC3PSC3
EC: 3.4.25.1
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Entity ID: 21
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-4U [auth D], IA [auth j]261Homo sapiensMutation(s): 0 
Gene Names: PSMA4HC9PSC9
EC: 3.4.25.1
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Entity ID: 22
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-7V [auth E], JA [auth k]248Homo sapiensMutation(s): 0 
Gene Names: PSMA7HSPC
EC: 3.4.25.1
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Entity ID: 23
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-5W [auth F], KA [auth l]241Homo sapiensMutation(s): 0 
Gene Names: PSMA5
EC: 3.4.25.1
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Entity ID: 24
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-1X [auth G], LA [auth m]263Homo sapiensMutation(s): 0 
Gene Names: PSMA1HC2NUPROS30PSC2
EC: 3.4.25.1
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Entity ID: 25
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-3Y [auth X], MA [auth n]255Homo sapiensMutation(s): 0 
Gene Names: PSMA3HC8PSC8
EC: 3.4.25.1
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Entity ID: 26
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-6Z [auth a], NA [auth o]239Homo sapiensMutation(s): 0 
Gene Names: PSMB6LMPYY
EC: 3.4.25.1
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Entity ID: 27
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-7AA [auth b], OA [auth p]277Homo sapiensMutation(s): 0 
Gene Names: PSMB7Z
EC: 3.4.25.1
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Entity ID: 28
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-3BA [auth c], PA [auth q]205Homo sapiensMutation(s): 0 
Gene Names: PSMB3
EC: 3.4.25.1
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Entity ID: 29
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-2CA [auth d], QA [auth r]201Homo sapiensMutation(s): 0 
Gene Names: PSMB2
EC: 3.4.25.1
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Entity ID: 30
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-5DA [auth e], RA [auth s]263Homo sapiensMutation(s): 0 
Gene Names: PSMB5LMPXMB1X
EC: 3.4.25.1
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Entity ID: 31
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Proteasome subunit beta type-1EA [auth f], SA [auth t]241Homo sapiensMutation(s): 0 
Gene Names: PSMB1PSC5
EC: 3.4.25.1
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Entity ID: 32
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-4FA [auth g], TA [auth u]264Homo sapiensMutation(s): 0 
Gene Names: PSMB4PROS26
EC: 3.4.25.1
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.50 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: 2016-09-07
    Type: Initial release
  • Version 1.1: 2017-04-05
    Changes: Database references
  • Version 1.2: 2019-10-09
    Changes: Advisory, Data collection, Other, Structure summary