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(-) Description

Title :  SCORPION TOXIN (OSK1 TOXIN) WITH HIGH AFFINITY FOR SMALL CONDUCTANCE CA(2+)-ACTIVATED K+ CHANNEL IN NEUROBLASTOMA-X-GLUOMA NG 108-15 HYBRID CELLS, NMR, 30 STRUCTURES
 
Authors :  V. A. Jaravine, D. E. Nolde, K. A. Pluzhnikov, E. V. Grishin, A. S. Arseniev
Date :  01 Apr 96  (Deposition) - 27 Jan 97  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (30x)
Keywords :  Potassium Channel Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  V. A. Jaravine, D. E. Nolde, M. J. Reibarkh, Y. V. Korolkova, S. A. Kozlov, K. A. Pluzhnikov, E. V. Grishin, A. S. Arseniev
Three-Dimensional Structure Of Toxin Osk1 From Orthochirus Scrobiculosus Scorpion Venom.
Biochemistry V. 36 1223 1997
PubMed-ID: 9063870  |  Reference-DOI: 10.1021/BI9614390
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SCORPION TOXIN OSK1
    ChainsA
    Organism CommonCENTRAL ASIAN SCORPION
    Organism ScientificORTHOCHIRUS SCROBICULOSUS
    Organism Taxid6892
    SynonymLENATOXIN

 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 1SCO)

(-) Sites  (0, 0)

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(-) SS Bonds  (3, 3)

NMR Structure
No.Residues
1A:8 -A:28
2A:14 -A:33
3A:18 -A:35

(-) Cis Peptide Bonds  (0, 0)

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 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SCORP_SHORT_TOXINPS01138 Scorpion short toxins signature.KAX37_ORTSC14-35  1A:14-35

(-) Exons   (0, 0)

(no "Exon" information available for 1SCO)

(-) 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:38
 aligned with KAX37_ORTSC | P55896 from UniProtKB/Swiss-Prot  Length:38

    Alignment length:38
                                    10        20        30        
           KAX37_ORTSC    1 GVIINVKCKISRQCLEPCKKAGMRFGKCMNGKCHCTPK 38
               SCOP domains d1scoa_ A: OSK1 TOXIN                  SCOP domains
               CATH domains -------------------------------------- CATH domains
               Pfam domains -----Toxin_2-1scoA01 A:6-36         -- Pfam domains
         Sec.struct. author .eeeee...hhhhhhhhhhhh..eeeeee..eeeee.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------- SAPs(SNPs)
                    PROSITE -------------SCORP_SHORT_TOXIN     --- PROSITE
                 Transcript -------------------------------------- Transcript
                  1sco A  1 GVIINVKCKISRQCLEPCKKAGMRFGKCMNGKCHCTPK 38
                                    10        20        30        

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 Classification and Annotation

(-) SCOP Domains  (1, 1)

NMR Structure

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1SCO)

(-) Pfam Domains  (1, 1)

NMR Structure

(-) Gene Ontology  (4, 4)

NMR Structure(hide GO term definitions)
Chain A   (KAX37_ORTSC | P55896)
molecular function
    GO:0008200    ion channel inhibitor activity    Stops, prevents, or reduces the activity of an ion channel.
biological process
    GO:0006952    defense response    Reactions, triggered in response to the presence of a foreign body or the occurrence of an injury, which result in restriction of damage to the organism attacked or prevention/recovery from the infection caused by the attack.
    GO:0009405    pathogenesis    The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
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
        KAX37_ORTSC | P558962ck4 2ck5

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