7UII | pdb_00007uii

Cryo-EM of self-assembled cannula CanA

• PDB DOI: https://doi.org/10.2210/pdb7UII/pdb
• EM Map EMD-26546: EMDB EMDataResource

• Classification: PROTEIN FIBRIL
• Organism(s): Pyrodictium abyssi
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-03-29 Released: 2023-04-12 
• Deposition Author(s): Wang, F., Miller, J.G., Egelman, E.H., Conticello, V.P.
• Funding Organization(s): National Science Foundation (NSF, United States), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.60 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Literature

Cryo-EM of self-assembled cannula CanA

Wang, F., Miller, J.G., Egelman, E.H., Conticello, V.P.

To be published.

Biological Assembly 1  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Homo 93-mer - A93 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: microscopy

Macromolecule Content 

• Total Structure Weight: 20.07 kDa 
• Atom Count: 1,408 
• Modeled Residue Count: 182 
• Deposited Residue Count: 183 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CanA	A [auth a]	183	Pyrodictium abyssi	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA (Subject of Investigation/LOI)	B [auth a], C [auth a]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.60 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-04-12 
Deposition Author(s): Wang, F., Miller, J.G., Egelman, E.H., Conticello, V.P.

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Funding Organization	Location	Grant Number
National Science Foundation (NSF, United States)	United States	NSF-DMR-1533958
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R35GM122510
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	K99GM138756

Revision History  

• Version 1.0: 2023-04-12
  Type: Initial release
  
• Version 1.1: 2024-06-12
  Changes: Data collection
• Version 1.2: 2025-06-04
  Changes: Data collection, Structure summary