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- EMDB-34778: FoF1-ATPase from Bacillus PS3,post-hyd,state1,lowATP -

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Basic information

Entry
Database: EMDB / ID: EMD-34778
TitleFoF1-ATPase from Bacillus PS3,post-hyd,state1,lowATP
Map data
Sample
  • Complex: FoF1 from Bacillus PS3
KeywordsATP synthase F1 ATPase FoF1 / MOTOR PROTEIN
Biological speciesBacillus sp. PS3 (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsNakano A / Kishikawa J / Mitsuoka K / Yokoyama K
Funding support Japan, 4 items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science (JSPS)20H03231 Japan
Japan Society for the Promotion of Science (JSPS)20K06514 Japan
Japan Agency for Medical Research and Development (AMED)JP17am0101001 Japan
Japan Society for the Promotion of Science (JSPS)20J00162 Japan
CitationJournal: Nat Commun / Year: 2023
Title: Mechanism of ATP hydrolysis dependent rotation of bacterial ATP synthase.
Authors: Atsuki Nakano / Jun-Ichi Kishikawa / Kaoru Mitsuoka / Ken Yokoyama /
Abstract: F domain of ATP synthase is a rotary ATPase complex in which rotation of central γ-subunit proceeds in 120° steps against a surrounding αβ fueled by ATP hydrolysis. How the ATP hydrolysis ...F domain of ATP synthase is a rotary ATPase complex in which rotation of central γ-subunit proceeds in 120° steps against a surrounding αβ fueled by ATP hydrolysis. How the ATP hydrolysis reactions occurring in three catalytic αβ dimers are coupled to mechanical rotation is a key outstanding question. Here we describe catalytic intermediates of the F domain in FF synthase from Bacillus PS3 sp. during ATP mediated rotation captured using cryo-EM. The structures reveal that three catalytic events and the first 80° rotation occur simultaneously in F domain when nucleotides are bound at all the three catalytic αβ dimers. The remaining 40° rotation of the complete 120° step is driven by completion of ATP hydrolysis at αβ, and proceeds through three sub-steps (83°, 91°, 101°, and 120°) with three associated conformational intermediates. All sub-steps except for one between 91° and 101° associated with phosphate release, occur independently of the chemical cycle, suggesting that the 40° rotation is largely driven by release of intramolecular strain accumulated by the 80° rotation. Together with our previous results, these findings provide the molecular basis of ATP driven rotation of ATP synthases.
History
DepositionNov 16, 2022-
Header (metadata) releaseJul 26, 2023-
Map releaseJul 26, 2023-
UpdateJan 29, 2025-
Current statusJan 29, 2025Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_34778.png

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Map

FileDownload / File: emd_34778.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

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AxesZ (Sec.)Y (Row.)X (Col.)
0.88 Å/pix.
x 360 pix.
= 316.8 Å		0.88 Å/pix.
x 360 pix.
= 316.8 Å		0.88 Å/pix.
x 360 pix.
= 316.8 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 0.88 Å
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Contour LevelBy AUTHOR: 0.00572
Minimum - Maximum-0.009672513 - 0.03403835
Average (Standard dev.)0.00009450522 (±0.0013393961)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 316.8 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_34778_msk_1.map
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Additional map: #1

Fileemd_34778_additional_1.map
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Half map: #1

Fileemd_34778_half_map_1.map
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Half map: #2

Fileemd_34778_half_map_2.map
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Sample components

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Entire : FoF1 from Bacillus PS3

EntireName: FoF1 from Bacillus PS3
Components
  • Complex: FoF1 from Bacillus PS3

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Supramolecule #1: FoF1 from Bacillus PS3

SupramoleculeName: FoF1 from Bacillus PS3 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Bacillus sp. PS3 (bacteria)
Molecular weightTheoretical: 530 KDa

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration10 mg/mL
BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number grids imaged: 1 / Number real images: 7653 / Average electron dose: 60.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 0.3 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm
Sample stageCooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 2654860
Startup modelType of model: INSILICO MODEL
Final reconstructionAlgorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 4.0) / Number images used: 42326
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 3.2)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 4.0)
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelPDB ID:

6n2y


Chain - Source name: PDB / Chain - Initial model type: experimental model
RefinementSpace: REAL / Protocol: RIGID BODY FIT

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