2LDS

Solution Structure of a Short-chain LaIT1 from the Venom of Scorpion Liocheles australasiae

• PDB DOI: https://doi.org/10.2210/pdb2LDS/pdb
• BMRB: 17681

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


• Deposited: 2011-06-01 Released: 2011-09-14 
• Deposition Author(s): Horita, S., Miyakawa, T., Nagata, K., Tanokura, M.

---

Experimental Data Snapshot

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

Literature

Solution structure of a short-chain insecticidal toxin LaIT1 from the venom of scorpion Liocheles australasiae.

Horita, S., Matsushita, N., Kawachi, T., Ayabe, R., Miyashita, M., Miyakawa, T., Nakagawa, Y., Nagata, K., Miyagawa, H., Tanokura, M.

(2011) Biochem Biophys Res Commun 411: 738-744

• PubMed: 21782787 
• DOI: https://doi.org/10.1016/j.bbrc.2011.07.016
• Primary Citation of Related Structures:  
  2LDS


• PubMed Abstract: 
  

  The solution structure of an insecticidal toxin LaIT1, a 36-residue peptide with a unique amino-acid sequence and two disulfide bonds, isolated from the venom of the scorpion Liocheles australasiae was determined by heteronuclear NMR spectroscopy. Structural similarity search showed that LaIT1 exhibits an inhibitory cystine knot (ICK)-like fold, which usually contains three or more disulfide bonds. Mutational analysis has revealed that two Arg residues of LaIT1, Arg(13) and Arg(15), play significant roles in insecticidal activity.

---

Organizational Affiliation: 

Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Japan.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 4.21 kDa 
• Atom Count: 292 
• Modelled Residue Count: 36 
• Deposited Residue Count: 36 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Insecticidal toxin LaIT1	A	36	Liocheles australasiae	Mutation(s): 0
UniProt
Find proteins for P0C5F2 (Liocheles australasiae) Explore P0C5F2  Go to UniProtKB:  P0C5F2

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 

Deposition Data

• Released Date: 2011-09-14 
Deposition Author(s): Horita, S., Miyakawa, T., Nagata, K., Tanokura, M.

Revision History  

• Version 1.0: 2011-09-14
  Type: Initial release
  
• Version 1.1: 2011-10-12
  Changes: Structure summary
• Version 1.2: 2023-06-14
  Changes: Database references, Other
• Version 1.3: 2024-10-30
  Changes: Data collection, Database references, Structure summary