6D9P

NMR solution structure of tamapin, mutant K27A

• PDB DOI: https://doi.org/10.2210/pdb6D9P/pdb
• BMRB: 30468

• Classification: TOXIN
• Organism(s): Mesobuthus tamulus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2018-04-30 Released: 2019-05-08 
• Deposition Author(s): del Rio Portilla, F., Melchor Meneses, C.M., Titaux Delgado, G.A., Mayorga Flores, M.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Novel Blocker of Onco SK3 Channels Derived from Scorpion Toxin Tamapin and Active against Migration of Cancer Cells

Flores, M., Chantome, A., Melchor-Meneses, C.M., Domingo, I., Titaux Delgado, G.A., Galindo-Murillo, R., Vandier, C., del Rio Portilla, F.

(2020) ACS Med Chem Lett 

• DOI: https://doi.org/10.1021/acsmedchemlett.0c00300

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 3.41 kDa 
• Atom Count: 233 
• Modelled Residue Count: 31 
• Deposited Residue Count: 31 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Potassium channel toxin alpha-KTx 5.4	A	31	Mesobuthus tamulus	Mutation(s): 1
UniProt
Find proteins for P59869 (Hottentotta tamulus) Explore P59869  Go to UniProtKB:  P59869

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2019-05-08 
Deposition Author(s): del Rio Portilla, F., Melchor Meneses, C.M., Titaux Delgado, G.A., Mayorga Flores, M.

Revision History  

• Version 1.0: 2019-05-08
  Type: Initial release
  
• Version 1.1: 2020-07-29
  Changes: Database references
• Version 1.2: 2023-06-14
  Changes: Database references, Other
• Version 1.3: 2024-11-20
  Changes: Data collection, Database references, Structure summary