6VM1

Chloroplast ATP synthase (C3, CF1FO)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural basis of redox modulation on chloroplast ATP synthase.

Yang, J.H.Williams, D.Kandiah, E.Fromme, P.Chiu, P.L.

(2020) Commun Biol 3: 482-482

  • DOI: 10.1038/s42003-020-01221-8
  • Primary Citation of Related Structures:  
    6VMG, 6VMB, 6VMD, 6VM1, 6VM4, 6VOH, 6VOG, 6VOJ, 6VOI, 6VOL, 6VOK, 6VON, 6VOM, 6VOF, 6VOO

  • PubMed Abstract: 
  • In higher plants, chloroplast ATP synthase has a unique redox switch on its γ subunit that modulates enzyme activity to limit ATP hydrolysis at night. To understand the molecular details of the redox modulation, we used single-particle cryo-EM to determine the structures of spinach chloroplast ATP synthase in both reduced and oxidized states ...

    In higher plants, chloroplast ATP synthase has a unique redox switch on its γ subunit that modulates enzyme activity to limit ATP hydrolysis at night. To understand the molecular details of the redox modulation, we used single-particle cryo-EM to determine the structures of spinach chloroplast ATP synthase in both reduced and oxidized states. The disulfide linkage of the oxidized γ subunit introduces a torsional constraint to stabilize the two β hairpin structures. Once reduced, free cysteines alleviate this constraint, resulting in a concerted motion of the enzyme complex and a smooth transition between rotary states to facilitate the ATP synthesis. We added an uncompetitive inhibitor, tentoxin, in the reduced sample to limit the flexibility of the enzyme and obtained high-resolution details. Our cryo-EM structures provide mechanistic insight into the redox modulation of the energy regulation activity of chloroplast ATP synthase.


    Organizational Affiliation

    School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287, USA. plchiu@asu.edu.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit alpha, chloroplasticA, B, C507Spinacia oleraceaMutation(s): 0 
Gene Names: atpA
EC: 7.1.2.2
Membrane Entity: Yes 
UniProt
Find proteins for P06450 (Spinacia oleracea)
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit beta, chloroplasticD, E, F498Spinacia oleraceaMutation(s): 0 
Gene Names: atpB
EC: 7.1.2.2
Membrane Entity: Yes 
UniProt
Find proteins for P00825 (Spinacia oleracea)
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit b, chloroplasticG [auth I]184Spinacia oleraceaMutation(s): 0 
Gene Names: atpF
Membrane Entity: Yes 
UniProt
Find proteins for P06453 (Spinacia oleracea)
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit b', chloroplasticH [auth J]222Spinacia oleraceaMutation(s): 0 
Gene Names: ATPF2ATPG
Membrane Entity: Yes 
UniProt
Find proteins for P31853 (Spinacia oleracea)
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit a, chloroplasticI [auth a]247Spinacia oleraceaMutation(s): 0 
Gene Names: atpI
Membrane Entity: Yes 
UniProt
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  • Reference Sequence
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase delta chain, chloroplasticJ [auth d]257Spinacia oleraceaMutation(s): 0 
Gene Names: ATPD
Membrane Entity: Yes 
UniProt
Find proteins for P11402 (Spinacia oleracea)
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase epsilon chain, chloroplasticK [auth e]134Spinacia oleraceaMutation(s): 0 
Gene Names: atpE
Membrane Entity: Yes 
UniProt
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase gamma chain, chloroplasticL [auth g]364Spinacia oleraceaMutation(s): 0 
Gene Names: ATPC
Membrane Entity: Yes 
UniProt
Find proteins for P05435 (Spinacia oleracea)
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit c, chloroplastic81Spinacia oleraceaMutation(s): 0 
Gene Names: atpH
Membrane Entity: Yes 
UniProt
Find proteins for P69447 (Spinacia oleracea)
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-09
    Type: Initial release
  • Version 1.1: 2020-09-16
    Changes: Database references