6VM4

Chloroplast ATP synthase (C2, CF1FO)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.08 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

  • 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 det ...

    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, chloroplasticABC507Spinacia oleraceaMutation(s): 0 
Gene Names: atpA
EC: 7.1.2.2
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, chloroplasticDEF498Spinacia oleraceaMutation(s): 0 
Gene Names: atpB
EC: 7.1.2.2
Find proteins for P00825 (Spinacia oleracea)
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit b, chloroplasticI184Spinacia oleraceaMutation(s): 0 
Gene Names: atpF
Find proteins for P06453 (Spinacia oleracea)
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit b', chloroplasticJ222Spinacia oleraceaMutation(s): 0 
Gene Names: ATPF2ATPG
Find proteins for P31853 (Spinacia oleracea)
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit a, chloroplastica247Spinacia oleraceaMutation(s): 0 
Gene Names: atpI
Find proteins for P06451 (Spinacia oleracea)
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase delta chain, chloroplasticd257Spinacia oleraceaMutation(s): 0 
Gene Names: ATPD
Find proteins for P11402 (Spinacia oleracea)
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase epsilon chain, chloroplastice134Spinacia oleraceaMutation(s): 0 
Gene Names: atpE
Find proteins for P00833 (Spinacia oleracea)
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase gamma chain, chloroplasticg364Spinacia oleraceaMutation(s): 0 
Gene Names: ATPC
Find proteins for P05435 (Spinacia oleracea)
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit c, chloroplasticMNOPQRSTUVWXYZ81Spinacia oleraceaMutation(s): 0 
Gene Names: atpH
Find proteins for P69447 (Spinacia oleracea)
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.08 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History 

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