8QBS

Cryo-EM structure of Vipp1-F197K/L200K helical filament with lattice 1 (Vipp1-F197K/L200K_L1)

• PDB DOI: https://doi.org/10.2210/pdb8QBS/pdb
• EM Map EMD-18319: EMDB EMDataResource

• Classification: LIPID BINDING PROTEIN
• Organism(s): Nostoc punctiforme
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-08-25 Released: 2024-09-11 
• Deposition Author(s): Naskar, S., Low, H.H.
• Funding Organization(s): Wellcome Trust

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.67 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Literature

Mechanism for Vipp1 spiral formation, ring biogenesis and membrane repair.

Naskar, S., Merino, A., Espadas, J., Singh, J., Roux, A., Colom, A., Low, H.H.

To be published.

Biological Assembly 1  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Homo 95-mer - A95 

Biological assembly 1 assigned by authors and generated by UCSF CHIMERA 1.17_b42440. (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 28.75 kDa 
• Atom Count: 1,569 
• Modelled Residue Count: 201 
• Deposited Residue Count: 258 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phage shock protein A, PspA	A	258	Nostoc punctiforme	Mutation(s): 0  Gene Names: Npun_R3963
UniProt
Find proteins for B2J6D9 (Nostoc punctiforme (strain ATCC 29133 / PCC 73102)) Explore B2J6D9  Go to UniProtKB:  B2J6D9

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.67 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	Coot
MODEL REFINEMENT	ISOLDE
MODEL REFINEMENT	PHENIX
RECONSTRUCTION	RELION	4

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-09-11 
Deposition Author(s): Naskar, S., Low, H.H.

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Funding Organization	Location	Grant Number
Wellcome Trust	United Kingdom	215553/Z/19/Z

Revision History  

• Version 1.0: 2024-09-11
  Type: Initial release