1N8M Toxin date Nov 21, 2002
title Solution Structure Of Pi4, A Four Disulfide Bridged Scorpion Active On Potassium Channels
authors J.I.Guijarro, S.M'Barek, T.Olamendi-Portugal, F.Gomez-Lagunas, D H.Rochat, L.D.Possani, J.M.Sabatier, M.Delepierre
compound source
Molecule: Potassium Channel Blocking Toxin 4
Chain: A
Synonym: Pi4
Engineered: Yes
 Synthetic: Yes
Other_details: This Sequence Occurs Naturally In The Venom Pandinus Imperator Scorpions, With An Amidated C-Terminus. Established By Nmr That The Structure Of The Natural Toxin From Scorpion Venom Is Effectively Identical To The Structu Synthetic Toxin, Which Has A Carboxylated C-Terminus.
methodSolution NMR
related structures by homologous chain: 1WT7
Gene
Ontology
ChainFunctionProcessComponent
A
  • toxin activity


    • Primary referenceSolution structure of Pi4, a short four-disulfide-bridged scorpion toxin specific of potassium channels., Guijarro JI, M'Barek S, Gomez-Lagunas F, Garnier D, Rochat H, Sabatier JM, Possani LD, Delepierre M, Protein Sci 2003 Sep;12(9):1844-54. PMID:12930984
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (96 Kb) [Save to disk]
  • Biological Unit Coordinates (1n8m.pdb1.gz) 10 Kb
  • CSU: Contacts of Structural Units for 1N8M
  • Original NMR restraints for 1N8M from PDB
  • Experimental data, such as chemical shifts, at BioMagResBank (BMRB)
  • NMR Restraints Grid from BioMagResBank (BMRB)
  • Retrieve 1N8M in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1N8M from S2C, [Save to disk]
    • View 1N8M in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
    • Visual 3D analysis of 1N8M
  • Ramachandran plot from PDBSum
    • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1N8M, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1n8ma_, region A [Jmol] [rasmolscript] [script source]
    • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1n8m_A] [1n8m]
  • SWISS-PROT database: [P58498]
  • Domain organization of [KAX64_PANIM] by SWISSPFAM
    • Other resources with information on 1N8M
  • Community annotation for 1N8M at PDBWiki (http://pdbwiki.org)
  • NMR Ensemble (OLDERADO: core, domain and representative structure database)
  • MMDB (Entrez's Structure Database)
    • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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