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(-) Description

Title :  AN UNUSUAL FOLD FOR POTASSIUM CHANNEL BLOCKERS : NMR STRUCTURE OF THREE TOXINS FROM THE SCORPION OPISTHACANTHUS MADAGASCARIENSIS
 
Authors :  B. Chagot, C. Pimentel, L. Dai, J. Pil, J. Tytgat, T. Nakajima, G. Corzo, H. Darbon, G. Ferrat
Date :  27 Sep 04  (Deposition) - 18 Jan 05  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (30x)
Keywords :  Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  B. Chagot, C. Pimentel, L. Dai, J. Pil, J. Tytgat, T. Nakajima, G. Corzo, H. Darbon, G. Ferrat
An Unusual Fold For Potassium Channel Blockers: Nmr Structure Of Three Toxins From The Scorpion Opisthacanthus Madagascariensis
Biochem. J. V. 388 263 2005
PubMed-ID: 15631621  |  Reference-DOI: 10.1042/BJ20041705
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - OMTX1
    Chains: A
    Organism Scientific: OPISTHACANTHUS MADAGASCARIENSIS
    Organism Taxid: 167108

 Structural Features

(-) Chains, Units

  
NMR Structure (30x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1WQC)

(-) Sites  (0, 0)

(no "Site" information available for 1WQC)

(-) SS Bonds  (2, 2)

NMR Structure
No.Residues
1A:3 -A:21
2A:7 -A:17

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1WQC)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1WQC)

(-) PROSITE Motifs  (0, 0)

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(-) Exons   (0, 0)

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(-) Sequences/Alignments

NMR Structure
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
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SAPs(SNPs) PROSITE motifs Exons
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Chain A from PDB  Type:PROTEIN  Length:26
 aligned with KKX21_OPIMA | P0C1Z3 from UniProtKB/Swiss-Prot  Length:27

    Alignment length:26
                                    10        20      
           KKX21_OPIMA    1 DPCYEVCLQQHGNVKECEEACKHPVE 26
               SCOP domains -------------------------- SCOP domains
               CATH domains -------------------------- CATH domains
               Pfam domains -------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhh..hhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -------------------------- SAPs(SNPs)
                    PROSITE -------------------------- PROSITE
                 Transcript -------------------------- Transcript
                  1wqc A  1 DPCYEVCLQQHGNVKECEEACKHPVE 26
                                    10        20
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  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

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(-) Pfam Domains  (0, 0)

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(-) Gene Ontology  (1, 1)

NMR Structure(hide GO term definitions)
Chain A   (KKX21_OPIMA | P0C1Z3)
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        KKX21_OPIMA | P0C1Z3: 1wqd

(-) Related Entries Specified in the PDB File

1wqd OMTX2
1wqe OMTX3