6NK9 | pdb_00006nk9

Solution structure of AcaTx1, a potassium channel inhibitor from the sea anemone Antopleura cascaia

• PDB DOI: https://doi.org/10.2210/pdb6NK9/pdb
• BMRB: 30555

• Classification: TOXIN
• Organism(s): Anthopleura
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-01-05 Released: 2020-01-15 
• Deposition Author(s): Amorim, G.C., Madio, B., Almeida, F.C.L.
• Funding Organization(s): Brazilian National Council for Scientific and Technological Development (CNPq)

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 10 
• Selection Criteria: structures with the lowest energy 

Literature

Structural Features of Potassium Channel Inhibition By Acatx1, A Novel Sea Anemone Neurotoxin.

Amorim, G.C., Almeida, F.C.L., Madio, B.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 3.35 kDa 
• Atom Count: 229 
• Modeled Residue Count: 32 
• Deposited Residue Count: 32 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Aca Toxin 1	A	32	Anthopleura	Mutation(s): 0
UniProt
Find proteins for A0A6I8WFP9 (Anthopleura cascaia) Explore A0A6I8WFP9  Go to UniProtKB:  A0A6I8WFP9

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 10 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2020-01-15 
Deposition Author(s): Amorim, G.C., Madio, B., Almeida, F.C.L.

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Funding Organization	Location	Grant Number
Brazilian National Council for Scientific and Technological Development (CNPq)	Brazil	--

Revision History  

• Version 1.0: 2020-01-15
  Type: Initial release
  
• Version 1.1: 2023-06-14
  Changes: Database references, Other
• Version 1.2: 2024-10-30
  Changes: Data collection, Database references, Structure summary