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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 :  28 Sep 04  (Deposition) - 18 Jan 05  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (30x)
Keywords :  Nmr, Structure, Scorpion Toxin, Cystine-Stabilized Helix- Turn-Helix (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 - OMTX3
    Chains: A
    Organism Scientific: OPISTHACANTHUS MADAGASCARIENSIS
    Organism Taxid: 167108

 Structural Features

(-) Chains, Units

  
NMR Structure (30x): 

Summary Information (see also Sequences/Alignments below)

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(-) SS Bonds  (2, 2)

NMR Structure
No.Residues
1A:4 -A:22
2A:8 -A:18

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 Sequence-Structure Mapping

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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 =   
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SAPs(SNPs) PROSITE motifs Exons
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Chain A from PDB  Type:PROTEIN  Length:23
 aligned with KKX23_OPIMA | P0C1Z4 from UniProtKB/Swiss-Prot  Length:23

    Alignment length:23
                                    10        20   
           KKX23_OPIMA    1 NDPCEEVCLQHTGNVKACEEACQ 23
               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
                  1wqe A  1 NDPCEEVCIQHTGDVKACEEACQ 23
                                    10        20
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(-) Gene Ontology  (1, 1)

NMR Structure(hide GO term definitions)
Chain A   (KKX23_OPIMA | P0C1Z4)
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

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(-) Related Entries Specified in the PDB File

1wqc OMTX1
1wqd OMTX2