7TMQ

V1 complex lacking subunit C from Saccharomyces cerevisiae, State 3


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 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

Coordinated conformational changes in the V 1 complex during V-ATPase reversible dissociation.

Vasanthakumar, T.Keon, K.A.Bueler, S.A.Jaskolka, M.C.Rubinstein, J.L.

(2022) Nat Struct Mol Biol 29: 430-439

  • DOI: https://doi.org/10.1038/s41594-022-00757-z
  • Primary Citation of Related Structures:  
    7TMM, 7TMO, 7TMP, 7TMQ, 7TMR, 7TMS, 7TMT

  • PubMed Abstract: 

    Vacuolar-type ATPases (V-ATPases) are rotary enzymes that acidify intracellular compartments in eukaryotic cells. These multi-subunit complexes consist of a cytoplasmic V 1 region that hydrolyzes ATP and a membrane-embedded V O region that transports protons. V-ATPase activity is regulated by reversible dissociation of the two regions, with the isolated V 1 and V O complexes becoming autoinhibited on disassembly and subunit C subsequently detaching from V 1 . In yeast, assembly of the V 1 and V O regions is mediated by the regulator of the ATPase of vacuoles and endosomes (RAVE) complex through an unknown mechanism. We used cryogenic-electron microscopy of yeast V-ATPase to determine structures of the intact enzyme, the dissociated but complete V 1 complex and the V 1 complex lacking subunit C. On separation, V 1 undergoes a dramatic conformational rearrangement, with its rotational state becoming incompatible for reassembly with V O . Loss of subunit C allows V 1 to match the rotational state of V O , suggesting how RAVE could reassemble V 1 and V O by recruiting subunit C.


  • Organizational Affiliation

    Molecular Medicine Program, The Hospital for Sick Children, Toronto, Ontario, Canada.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
H(+)-transporting two-sector ATPase
A, C, E
639Saccharomyces cerevisiaeMutation(s): 0 
EC: 7.1.2.2
UniProt
Find proteins for P17255 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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UniProt GroupP17255
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Vacuolar proton pump subunit B
B, D, F
517Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for P16140 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
V-type proton ATPase subunit E
G, I, K
233Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for P22203 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
V-type proton ATPase subunit G
H, J, L
114Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for P48836 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
V-type proton ATPase subunit D256Saccharomyces cerevisiaeMutation(s): 0 
UniProt
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
V-type proton ATPase subunit F118Saccharomyces cerevisiaeMutation(s): 0 
UniProt
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
V-type proton ATPase subunit HO [auth P]478Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for P41807 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Canadian Institutes of Health Research (CIHR)CanadaPJT166152

Revision History  (Full details and data files)

  • Version 1.0: 2022-04-06
    Type: Initial release
  • Version 1.1: 2022-04-27
    Changes: Database references
  • Version 1.2: 2022-05-11
    Changes: Database references
  • Version 1.3: 2022-06-01
    Changes: Database references
  • Version 1.4: 2024-02-21
    Changes: Data collection