7AS4

Recombinant human gTuRC

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.13 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history. 


Literature

Assembly of the asymmetric human gamma-tubulin ring complex by RUVBL1-RUVBL2 AAA ATPase.

Zimmermann, F., Serna, M., Ezquerra, A., Fernandez-Leiro, R., Llorca, O., Luders, J.

(2020) Sci Adv 6

  • DOI: https://doi.org/10.1126/sciadv.abe0894
  • Primary Citation of Related Structures:  
    7AS4

  • PubMed Abstract: 

    • The microtubule nucleator γ-tubulin ring complex (γTuRC) is essential for the function of microtubule organizing centers such as the centrosome. Since its discovery over two decades ago, γTuRC has evaded in vitro reconstitution and thus detailed structure-function studies ...

    The microtubule nucleator γ-tubulin ring complex (γTuRC) is essential for the function of microtubule organizing centers such as the centrosome. Since its discovery over two decades ago, γTuRC has evaded in vitro reconstitution and thus detailed structure-function studies. Here, we show that a complex of RuvB-like protein 1 (RUVBL1) and RUVBL2 "RUVBL" controls assembly and composition of γTuRC in human cells. Likewise, RUVBL assembles γTuRC from a minimal set of core subunits in a heterologous coexpression system. RUVBL interacts with γTuRC subcomplexes but is not part of fully assembled γTuRC. Purified, reconstituted γTuRC has nucleation activity and resembles native γTuRC as revealed by its cryo-electron microscopy (cryo-EM) structure at ~4.0-Å resolution. We further use cryo-EM to identify features that determine the intricate, higher-order γTuRC architecture. Our work finds RUVBL as an assembly factor that regulates γTuRC in cells and allows production of recombinant γTuRC for future in-depth mechanistic studies.

    Organizational Affiliation: 

    Mechanisms of Disease Programme, Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain. ollorca@cnio.es jens.luders@irbbarcelona.org.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tubulin gamma-1 chain447Homo sapiensMutation(s): 0 
Gene Names: TUBG1, TUBG
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PHAROS:  P23258
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UniProt GroupP23258
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Gamma-tubulin complex component 3907Homo sapiensMutation(s): 0 
Gene Names: TUBGCP3, GCP3
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Gamma-tubulin complex component 6D [auth 4],
S [auth L]		1,819Homo sapiensMutation(s): 0 
Gene Names: TUBGCP6, GCP6, KIAA1669
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Mitotic-spindle organizing protein 1E [auth 5],
F [auth 6]		82Homo sapiensMutation(s): 0 
Gene Names: MZT1, C13orf37, MOZART1
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Actin, cytoplasmic 1G [auth 7]374Homo sapiensMutation(s): 0 
Gene Names: ACTB
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Gamma-tubulin complex component 2H [auth A],
J [auth C],
L [auth E],
N [auth G],
T [auth M]		902Homo sapiensMutation(s): 0 
Gene Names: TUBGCP2, GCP2
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
Gamma-tubulin complex component 4P [auth I],
R [auth K]		667Homo sapiensMutation(s): 0 
Gene Names: TUBGCP4, 76P, GCP4
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
Gamma-tubulin complex component 5Q [auth J]1,024Homo sapiensMutation(s): 0 
Gene Names: TUBGCP5, GCP5, KIAA1899
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.13 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Spanish Ministry of Science, Innovation, and UniversitiesSpainSAF2017-82632-P
Other governmentSpainY2018/BIO4747
Other governmentSpainP2018/NMT4443

Revision History  (Full details and data files)

  • Version 1.0: 2021-01-20
    Type: Initial release