2MIX

Structure of a novel venom peptide toxin from sample limited terebrid marine snail


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Sample limited characterization of a novel disulfide-rich venom peptide toxin from terebrid marine snail Terebra variegata.

Anand, P.Grigoryan, A.Bhuiyan, M.H.Ueberheide, B.Russell, V.Quinonez, J.Moy, P.Chait, B.T.Poget, S.F.Holford, M.

(2014) PLoS One 9: e94122-e94122

  • DOI: 10.1371/journal.pone.0094122
  • Primary Citation of Related Structures:  
    2MIX

  • PubMed Abstract: 
  • Disulfide-rich peptide toxins found in the secretions of venomous organisms such as snakes, spiders, scorpions, leeches, and marine snails are highly efficient and effective tools for novel therapeutic drug development. Venom peptide toxins have been used extensively to characterize ion channels in the nervous system and platelet aggregation in haemostatic systems ...

    Disulfide-rich peptide toxins found in the secretions of venomous organisms such as snakes, spiders, scorpions, leeches, and marine snails are highly efficient and effective tools for novel therapeutic drug development. Venom peptide toxins have been used extensively to characterize ion channels in the nervous system and platelet aggregation in haemostatic systems. A significant hurdle in characterizing disulfide-rich peptide toxins from venomous animals is obtaining significant quantities needed for sequence and structural analyses. Presented here is a strategy for the structural characterization of venom peptide toxins from sample limited (4 ng) specimens via direct mass spectrometry sequencing, chemical synthesis and NMR structure elucidation. Using this integrated approach, venom peptide Tv1 from Terebra variegata was discovered. Tv1 displays a unique fold not witnessed in prior snail neuropeptides. The novel structural features found for Tv1 suggest that the terebrid pool of peptide toxins may target different neuronal agents with varying specificities compared to previously characterized snail neuropeptides.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, City University of New York- Hunter College and Graduate Center, New York, New York, United States of America; The American Museum of Natural History, New York, New York, United States of America.



Macromolecules

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
venom peptide toxinA21TerebridaeMutation(s): 0 
UniProt
Find proteins for A0A0B4J184 (Terebra variegata)
Explore A0A0B4J184 
Go to UniProtKB:  A0A0B4J184
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0B4J184
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-12-03
    Type: Initial release