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: https://doi.org/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, 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.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-4A [auth M],
AA [auth a]
216Homo sapiensMutation(s): 0 
EC: 3.4.25.1
UniProt & NIH Common Fund Data Resources
Find proteins for P28070 (Homo sapiens)
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PHAROS:  P28070
GTEx:  ENSG00000159377 
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UniProt GroupP28070
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-2B [auth A],
O
230Homo sapiensMutation(s): 0 
EC: 3.4.25.1
UniProt & NIH Common Fund Data Resources
Find proteins for P25787 (Homo sapiens)
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PHAROS:  P25787
GTEx:  ENSG00000106588 
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UniProt GroupP25787
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-4C [auth B],
P
248Homo sapiensMutation(s): 0 
EC: 3.4.25.1
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Find proteins for P25789 (Homo sapiens)
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GTEx:  ENSG00000041357 
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UniProt GroupP25789
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-7D [auth C],
Q
237Homo sapiensMutation(s): 0 
EC: 3.4.25.1
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Find proteins for O14818 (Homo sapiens)
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GTEx:  ENSG00000101182 
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UniProt GroupO14818
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-5E [auth D],
R
233Homo sapiensMutation(s): 0 
EC: 3.4.25.1
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Find proteins for P28066 (Homo sapiens)
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GTEx:  ENSG00000143106 
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UniProt GroupP28066
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-1F [auth E],
S
238Homo sapiensMutation(s): 0 
EC: 3.4.25.1
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Find proteins for P25786 (Homo sapiens)
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GTEx:  ENSG00000129084 
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UniProt GroupP25786
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-3G [auth F],
T
240Homo sapiensMutation(s): 0 
EC: 3.4.25.1
UniProt & NIH Common Fund Data Resources
Find proteins for P25788 (Homo sapiens)
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GTEx:  ENSG00000100567 
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-6H [auth G],
U
244Homo sapiensMutation(s): 0 
EC: 3.4.25.1
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Find proteins for P60900 (Homo sapiens)
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GTEx:  ENSG00000100902 
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UniProt GroupP60900
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-7I [auth H],
V
220Homo sapiensMutation(s): 0 
EC: 3.4.25.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q99436 (Homo sapiens)
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GTEx:  ENSG00000136930 
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UniProt GroupQ99436
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-3J [auth I],
W
204Homo sapiensMutation(s): 0 
EC: 3.4.25.1
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Find proteins for P49720 (Homo sapiens)
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GTEx:  ENSG00000277791 
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UniProt GroupP49720
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-2K [auth J],
X
196Homo sapiensMutation(s): 0 
EC: 3.4.25.1
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Find proteins for P49721 (Homo sapiens)
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GTEx:  ENSG00000126067 
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-5L [auth K],
Y
201Homo sapiensMutation(s): 0 
EC: 3.4.25.1
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Find proteins for P28074 (Homo sapiens)
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GTEx:  ENSG00000100804 
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-1M [auth L],
Z
213Homo sapiensMutation(s): 0 
EC: 3.4.25.1
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Find proteins for P20618 (Homo sapiens)
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GTEx:  ENSG00000008018 
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UniProt GroupP20618
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-6BA [auth b],
N
203Homo sapiensMutation(s): 0 
EC: 3.4.25.1
UniProt & NIH Common Fund Data Resources
Find proteins for P28072 (Homo sapiens)
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GTEx:  ENSG00000142507 
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UniProt GroupP28072
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.14
RECONSTRUCTIONRELION3

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  (Full details and data files)

  • 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