1NTN Postsynaptic Neurotoxin date Sep 26, 1994
title The Crystal Structure Of Neurotoxin-I From Naja Naja Oxiana Angstroms Resolution
authors A.M.Mikhailov, A.V.Nickitenko, B.K.Vainshtein, C.Betzel, K.Wilso
compound source
Molecule: Neurotoxin I
Chain: A
Engineered: Yes
Organism_scientific: Naja Oxiana
Organism_common: Central Asian Cobra
Organism_taxid: 8657
symmetry Space Group: P 21 21 21
length a length b length c angle alpha angle beta angle gamma
25.170 75.580 35.860 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.90 Å
related structures by homologous chain: 1HC9, 2ABX, 2CTX
  • toxin activity

  • Primary referenceThree-dimensional structure of neurotoxin-1 from Naja naja oxiana venom at 1.9 A resolution., Nickitenko AV, Michailov AM, Betzel C, Wilson KS, FEBS Lett. 1993 Apr 5;320(2):111-7. PMID:8458425
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (16 Kb) [Save to disk]
  • Biological Unit Coordinates (1ntn.pdb1.gz) 13 Kb
  • CSU: Contacts of Structural Units for 1NTN
  • Likely Quarternary Molecular Structure file(s) for 1NTN
  • Structure Factors (37 Kb)
  • Retrieve 1NTN in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1NTN from S2C, [Save to disk]
  • Re-refined 1ntn structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1NTN 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 1NTN
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1NTN, from MSDmotif at EBI
  • Genome occurence of 1NTN's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ntn__, region [Jmol] [rasmolscript] [script source]
  • Fold representative 1ntn from FSSP and Dali (Families of Structurally Similar Proteins)
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1ntn] [1ntn_A]
  • SWISS-PROT database: [P01382]
  • Belongs to the snake cytotoxin (sct) family according to TCDB.
  • Domain organization of [NXL1_NAJOX] by SWISSPFAM
  • Other resources with information on 1NTN
  • Community annotation for 1NTN at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
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  • Images from IMB Jena Image Library of Biological Macromolecules.

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