6AX2

Solution structure of Magi3 a specific insect toxin from the spider Macrothele gigas


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 12 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Successful refolding and NMR structure of rMagi3: A disulfide-rich insecticidal spider toxin.

Titaux-Delgado, G.Carrillo, E.Mendoza, A.Mayorga-Flores, M.Escobedo-Gonzalez, F.C.Cano-Sanchez, P.Lopez-Vera, E.Corzo, G.Del Rio-Portilla, F.

(2018) Protein Sci. 27: 692-701

  • DOI: 10.1002/pro.3363

  • PubMed Abstract: 
  • The need for molecules with high specificity against noxious insects leads the search towards spider venoms that have evolved highly selective toxins for insect preys. In this respect, spiders as a highly diversified group of almost exclusive insect ...

    The need for molecules with high specificity against noxious insects leads the search towards spider venoms that have evolved highly selective toxins for insect preys. In this respect, spiders as a highly diversified group of almost exclusive insect predators appear to possess infinite potential for the discovery of novel insect-selective toxins. In 2003, a group of toxins was isolated from the spider Macrothele gigas and the amino acid sequence was reported. We obtained, by molecular biology techniques in a heterologous system, one of these toxins. Purification process was optimized by chromatographic methods to determine the three-dimensional structure by nuclear magnetic resonance in solution, and, finally, their biological activity was tested. rMagi3 resulted to be a specific insect toxin with no effect on mice.


    Organizational Affiliation

    Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, CU, Ciudad de México, 04510, México.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mu-hexatoxin-Mg2a
A
46Macrothele gigasMutation(s): 0 
Find proteins for P83559 (Macrothele gigas)
Go to UniProtKB:  P83559
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 12 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Direccion General del Personal Academico, UNAMMexicoIN207516

Revision History 

  • Version 1.0: 2018-01-10
    Type: Initial release
  • Version 1.1: 2018-01-24
    Type: Structure summary
  • Version 1.2: 2018-01-31
    Type: Structure summary
  • Version 1.3: 2018-02-28
    Type: Database references