6R70

Endogeneous native human 20S 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 1.4 of the entry. See complete history


Literature

Microfluidic protein isolation and sample preparation for high-resolution cryo-EM.

Schmidli, C.Albiez, S.Rima, L.Righetto, R.Mohammed, I.Oliva, P.Kovacik, L.Stahlberg, H.Braun, T.

(2019) Proc Natl Acad Sci U S A 116: 15007-15012

  • DOI: 10.1073/pnas.1907214116
  • Primary Citation of Related Structures:  
    6R70, 6R7M

  • PubMed Abstract: 
  • High-resolution structural information is essential to understand protein function. Protein-structure determination needs a considerable amount of protein, which can be challenging to produce, often involving harsh and lengthy procedures. In contrast, th ...

    High-resolution structural information is essential to understand protein function. Protein-structure determination needs a considerable amount of protein, which can be challenging to produce, often involving harsh and lengthy procedures. In contrast, the several thousand to a few million protein particles required for structure determination by cryogenic electron microscopy (cryo-EM) can be provided by miniaturized systems. Here, we present a microfluidic method for the rapid isolation of a target protein and its direct preparation for cryo-EM. Less than 1 μL of cell lysate is required as starting material to solve the atomic structure of the untagged, endogenous human 20S proteasome. Our work paves the way for high-throughput structure determination of proteins from minimal amounts of cell lysate and opens more opportunities for the isolation of sensitive, endogenous protein complexes.


    Organizational Affiliation

    Center for Cellular Imaging and Nanoanalytics, Biozentrum, 4058 Basel, Switzerland; thomas.braun@unibas.ch.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-4 Ma216Homo sapiensMutation(s): 0 
Gene Names: PSMB4PROS26
EC: 3.4.25.1
Find proteins for P28070 (Homo sapiens)
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PHAROS:  P28070
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-2 AO230Homo sapiensMutation(s): 0 
Gene Names: PSMA2HC3PSC3
EC: 3.4.25.1
Find proteins for P25787 (Homo sapiens)
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PHAROS:  P25787
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-4 BP248Homo sapiensMutation(s): 0 
Gene Names: PSMA4HC9PSC9
EC: 3.4.25.1
Find proteins for P25789 (Homo sapiens)
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PHAROS:  P25789
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-7 CQ237Homo sapiensMutation(s): 0 
Gene Names: PSMA7HSPC
EC: 3.4.25.1
Find proteins for O14818 (Homo sapiens)
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PHAROS:  O14818
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-5 DR233Homo sapiensMutation(s): 0 
Gene Names: PSMA5
EC: 3.4.25.1
Find proteins for P28066 (Homo sapiens)
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-1 ES238Homo sapiensMutation(s): 0 
Gene Names: PSMA1HC2NUPROS30PSC2
EC: 3.4.25.1
Find proteins for P25786 (Homo sapiens)
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-3 FT240Homo sapiensMutation(s): 0 
Gene Names: PSMA3HC8PSC8
EC: 3.4.25.1
Find proteins for P25788 (Homo sapiens)
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-6 GU244Homo sapiensMutation(s): 0 
Gene Names: PSMA6PROS27
EC: 3.4.25.1
Find proteins for P60900 (Homo sapiens)
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-7 HV220Homo sapiensMutation(s): 0 
Gene Names: PSMB7Z
EC: 3.4.25.1
Find proteins for Q99436 (Homo sapiens)
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-3 IW204Homo sapiensMutation(s): 0 
Gene Names: PSMB3
EC: 3.4.25.1
Find proteins for P49720 (Homo sapiens)
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-2 JX196Homo sapiensMutation(s): 0 
Gene Names: PSMB2
EC: 3.4.25.1
Find proteins for P49721 (Homo sapiens)
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-5 KY201Homo sapiensMutation(s): 0 
Gene Names: PSMB5LMPXMB1X
EC: 3.4.25.1
Find proteins for P28074 (Homo sapiens)
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-1 LZ213Homo sapiensMutation(s): 0 
Gene Names: PSMB1PSC5
EC: 3.4.25.1
Find proteins for P20618 (Homo sapiens)
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PHAROS:  P20618
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-6 Nb203Homo sapiensMutation(s): 0 
Gene Names: PSMB6LMPYY
EC: 3.4.25.1
Find proteins for P28072 (Homo sapiens)
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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

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Swiss National Science FoundationSwitzerland200021_162521
Swiss National Science FoundationSwitzerland205320_166164

Revision History 

  • Version 1.0: 2019-07-03
    Type: Initial release
  • Version 1.1: 2019-07-17
    Changes: Data collection, Database references
  • Version 1.2: 2019-07-24
    Changes: Data collection, Database references
  • Version 1.3: 2019-07-31
    Changes: Data collection, Database references
  • Version 1.4: 2019-12-18
    Changes: Other