4MJN | pdb_00004mjn

Structure of the c ring of the CF1FO ATP synthases.

• PDB DOI: https://doi.org/10.2210/pdb4MJN/pdb

• Classification: HYDROLASE
• Organism(s): Triticum aestivum
• Mutation(s): No 
• Membrane Protein: Yes  PDBTM


• Deposited: 2013-09-04 Released: 2014-03-19 
• Deposition Author(s): Balakrishna, A.M., Gruber, G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 6.00 Å
• R-Value Free: 
  0.378 (Depositor), 0.494 (DCC) 
• R-Value Work: 
  0.358 (Depositor), 0.414 (DCC) 
• R-Value Observed: 
  0.359 (Depositor) 

Starting Model: experimental

Literature

Crystallographic structure of the turbine C-ring from spinach chloroplast F-ATP synthase.

Balakrishna, A.M., Seelert, H., Marx, S.H., Dencher, N.A., Gruber, G.

(2014) Biosci Rep 34

• PubMed: 27919036 
• DOI: https://doi.org/10.1042/BSR20130114
• Primary Citation Related Structures: 
  4MJN


• PubMed Abstract: 
  

  In eukaryotic and prokaryotic cells, F-ATP synthases provide energy through the synthesis of ATP. The chloroplast F-ATP synthase (CF ₁ F _O -ATP synthase) of plants is integrated into the thylakoid membrane via its F _O -domain subunits a, b, b' and c Subunit c with a stoichiometry of 14 and subunit a form the gate for H ⁺ -pumping, enabling the coupling of electrochemical energy with ATP synthesis in the F ₁ sector.Here we report the crystallization and structure determination of the c14-ring of subunit c of the CF ₁ F _O -ATP synthase from spinach chloroplasts. The crystals belonged to space group C2, with unit-cell parameters a=144.420, b=99.295, c=123.51 Å, and β=104.34° and diffracted to 4.5 Å resolution. Each c-ring contains 14 monomers in the asymmetric unit. The length of the c-ring is 60.32 Å, with an outer ring diameter 52.30 Å and an inner ring width of 40 Å.

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Organizational Affiliation: 
• Nanyang Technological University, School of Biological Sciences, 60 Nanyang Drive, Singapore 637551, Republic of Singapore.
Physikalische Biochemie, Fachbereich Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str.4, D-64287 Darmstadt, Germany.
Nanyang Technological University, School of Biological Sciences, 60 Nanyang Drive, Singapore 637551, Republic of Singapore [e-mail].

Biological Assembly 1  

Global Symmetry: Cyclic - C14  (Explore in 3D)
Global Stoichiometry: Homo 14-mer - A14 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 111.68 kDa 
• Atom Count: 5,026 
• Modeled Residue Count: 1,036 
• Deposited Residue Count: 1,134 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP synthase subunit c, chloroplastic	A, B, C, D, E, F, G, H, I, J, K, L, M, N	81	Triticum aestivum	Mutation(s): 0  EC: 3.6.3.14 Membrane Entity: Yes
UniProt
Find proteins for P69448 (Triticum aestivum) Explore P69448  Go to UniProtKB:  P69448

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 6.00 Å
• R-Value Free:  0.378 (Depositor), 0.494 (DCC) 
• R-Value Work:  0.358 (Depositor), 0.414 (DCC) 
• R-Value Observed: 0.359 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 144.42	α = 90
b = 99.295	β = 104.34
c = 123.51	γ = 90

Software Package:

Software Name	Purpose
PHASER	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-03-19 
Deposition Author(s): Balakrishna, A.M., Gruber, G.

Revision History  

• Version 1.0: 2014-03-19
  Type: Initial release
  
• Version 1.1: 2019-06-05
  Changes: Data collection, Database references
• Version 1.2: 2023-11-08
  Changes: Data collection, Database references, Refinement description