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- PDB-6vwk: E. coli ATP Synthase ADP Sub-state 3a Fo Focussed -

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Basic information

Entry
Database: PDB / ID: 6vwk
TitleE. coli ATP Synthase ADP Sub-state 3a Fo Focussed
Components
  • ATP synthase subunit a
  • ATP synthase subunit b
  • ATP synthase subunit c
KeywordsMEMBRANE PROTEIN / E coli ATP Synthase / ion channel / ATPase
Function / homology
Function and homology information


proton motive force-driven plasma membrane ATP synthesis / proton-transporting ATP synthase complex / proton motive force-driven ATP synthesis / : / proton-transporting ATPase activity, rotational mechanism / proton-transporting ATP synthase activity, rotational mechanism / hydrolase activity / lipid binding / plasma membrane
Similarity search - Function
F1F0 ATP synthase subunit C / F1FO ATP Synthase / ATP synthase, F0 complex, subunit b, bacterial / F-type ATP synthase subunit B-like, membrane domain superfamily / : / ATP synthase, F0 complex, subunit A, bacterial/chloroplast / ATP synthase, F0 complex, subunit b/b', bacterial/chloroplast / ATP synthase B/B' CF(0) / ATP synthase, F0 complex, subunit C, bacterial/chloroplast / ATP synthase, F0 complex, subunit A ...F1F0 ATP synthase subunit C / F1FO ATP Synthase / ATP synthase, F0 complex, subunit b, bacterial / F-type ATP synthase subunit B-like, membrane domain superfamily / : / ATP synthase, F0 complex, subunit A, bacterial/chloroplast / ATP synthase, F0 complex, subunit b/b', bacterial/chloroplast / ATP synthase B/B' CF(0) / ATP synthase, F0 complex, subunit C, bacterial/chloroplast / ATP synthase, F0 complex, subunit A / ATP synthase, F0 complex, subunit A, active site / ATP synthase, F0 complex, subunit A superfamily / ATP synthase A chain / ATP synthase a subunit signature. / ATP synthase, F0 complex, subunit C / F1F0 ATP synthase subunit C superfamily / ATP synthase, F0 complex, subunit C, DCCD-binding site / ATP synthase c subunit signature. / V-ATPase proteolipid subunit C-like domain / F/V-ATP synthase subunit C superfamily / ATP synthase subunit C / Up-down Bundle / Mainly Alpha
Similarity search - Domain/homology
ATP synthase subunit a / ATP synthase subunit b / ATP synthase subunit c / ATP synthase subunit a / ATP synthase subunit b / ATP synthase subunit c
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsStewart, A.G. / Walshe, J.L. / Sobti, M.
Funding support Australia, 1items
OrganizationGrant numberCountry
National Health and Medical Research Council (NHMRC, Australia) Australia
CitationJournal: Nat Commun / Year: 2020
Title: Cryo-EM structures provide insight into how E. coli FF ATP synthase accommodates symmetry mismatch.
Authors: Meghna Sobti / James L Walshe / Di Wu / Robert Ishmukhametov / Yi C Zeng / Carol V Robinson / Richard M Berry / Alastair G Stewart /
Abstract: FF ATP synthase functions as a biological rotary generator that makes a major contribution to cellular energy production. It comprises two molecular motors coupled together by a central and a ...FF ATP synthase functions as a biological rotary generator that makes a major contribution to cellular energy production. It comprises two molecular motors coupled together by a central and a peripheral stalk. Proton flow through the F motor generates rotation of the central stalk, inducing conformational changes in the F motor that catalyzes ATP production. Here we present nine cryo-EM structures of E. coli ATP synthase to 3.1-3.4 Å resolution, in four discrete rotational sub-states, which provide a comprehensive structural model for this widely studied bacterial molecular machine. We observe torsional flexing of the entire complex and a rotational sub-step of F associated with long-range conformational changes that indicates how this flexibility accommodates the mismatch between the 3- and 10-fold symmetries of the F and F motors. We also identify density likely corresponding to lipid molecules that may contribute to the rotor/stator interaction within the F motor.
History
DepositionFeb 20, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 3, 2020Provider: repository / Type: Initial release
Revision 1.1Jun 10, 2020Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _citation_author.name
Revision 1.2Jun 24, 2020Group: Data processing / Structure summary / Category: em_3d_reconstruction / struct / Item: _em_3d_reconstruction.resolution / _struct.title
Revision 1.3Mar 6, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
I: ATP synthase subunit c
J: ATP synthase subunit c
L: ATP synthase subunit c
M: ATP synthase subunit c
N: ATP synthase subunit c
O: ATP synthase subunit c
P: ATP synthase subunit c
Q: ATP synthase subunit c
R: ATP synthase subunit c
S: ATP synthase subunit c
X: ATP synthase subunit b
Y: ATP synthase subunit b
a: ATP synthase subunit a


Theoretical massNumber of molelcules
Total (without water)147,49513
Polymers147,49513
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein
ATP synthase subunit c / ATP synthase F(0) sector subunit c / F-type ATPase subunit c / F-ATPase subunit c / Lipid-binding protein


Mass: 8259.064 Da / Num. of mol.: 10
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: atpE, ECJG_03465 / Production host: Escherichia coli (E. coli) / References: UniProt: F4TL55, UniProt: P68699*PLUS
#2: Protein ATP synthase subunit b / ATP synthase F(0) sector subunit b / ATPase subunit I / F-type ATPase subunit b / F-ATPase subunit b


Mass: 17289.953 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: atpf / Production host: Escherichia coli (E. coli) / References: UniProt: D6IFY0, UniProt: P0ABA0*PLUS
#3: Protein ATP synthase subunit a / ATP synthase F0 sector subunit a / F-ATPase subunit 6


Mass: 30324.096 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: atpB / Production host: Escherichia coli (E. coli) / References: UniProt: C3SL77, UniProt: P0AB98*PLUS

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: E. coli ATP Synthase / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightValue: 0.558 MDa / Experimental value: NO
Source (natural)Organism: Escherichia coli (E. coli)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 48 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

SoftwareName: PHENIX / Version: dev_3758: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 78283 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.018577
ELECTRON MICROSCOPYf_angle_d1.30311626
ELECTRON MICROSCOPYf_dihedral_angle_d19.373032
ELECTRON MICROSCOPYf_chiral_restr0.131415
ELECTRON MICROSCOPYf_plane_restr0.0121434

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