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(-) Description

Title :  SOLUTION STRUCTURE OF ROBUSTOXIN, THE LETHAL NEUROTOXIN FROM THE FUNNEL WEB SPIDER ATRAX ROBUSTUS, NMR, 20 STRUCTURES
 
Authors :  P. K. Pallaghy, D. Alewood, P. F. Alewood, R. S. Norton
Date :  09 Oct 97  (Deposition) - 14 Jan 98  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
Keywords :  Neurotoxin, Atrax Robustus, Robustoxin, Cystine Knot, Inhibitor Cystine Knot Motif, Sodium Channel Modulator, Funnel Web Spider, Nmr, Venom (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  P. K. Pallaghy, D. Alewood, P. F. Alewood, R. S. Norton
Solution Structure Of Robustoxin, The Lethal Neurotoxin From The Funnel-Web Spider Atrax Robustus.
Febs Lett. V. 419 191 1997
PubMed-ID: 9428632  |  Reference-DOI: 10.1016/S0014-5793(97)01452-X
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ROBUSTOXIN
    Chains: A
    Organ: VENOM GLAND
    Organism Scientific: ATRAX ROBUSTUS
    Organism Taxid: 6903

 Structural Features

(-) Chains, Units

  
NMR Structure (20x): 

Summary Information (see also Sequences/Alignments below)

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

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

(-) Sites  (0, 0)

(no "Site" information available for 1QDP)

(-) SS Bonds  (4, 4)

NMR Structure
No.Residues
1A:1 -A:15
2A:8 -A:20
3A:14 -A:31
4A:16 -A:42

(-) Cis Peptide Bonds  (1, 20)

NMR Structure
No.ModelResidues
11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20Cys A:16 -Pro A:17

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1DELTA_ACTXPS60018 Delta-atracotoxin (ACTX) family signature.TXDT1_ATRRO1-42  1A:1-42

(-) Exons   (0, 0)

(no "Exon" information available for 1QDP)

(-) 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    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:42
 aligned with TXDT1_ATRRO | P01478 from UniProtKB/Swiss-Prot  Length:42

    Alignment length:42
                                    10        20        30        40  
           TXDT1_ATRRO    1 CAKKRNWCGKNEDCCCPMKCIYAWYNQQGSCQTTITGLFKKC 42
               SCOP domains d1qdpa_ A: Robustoxin                      SCOP domains
               CATH domains 1qdpA00 A:1-42                             CATH domains
               Pfam domains Atracotoxin-1qdpA01 A:1-42                 Pfam domains
         Sec.struct. author ..................eee........eee.......... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------ SAPs(SNPs)
                    PROSITE DELTA_ACTX  PDB: A:1-42 UniProt: 1-42      PROSITE
                 Transcript ------------------------------------------ Transcript
                  1qdp A  1 CAKKRNWCGKNEDCCCPMKCIYAWYNQQGSCQTTITGLFKKC 42
                                    10        20        30        40
   Legend:   → Mismatch (orange background)
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  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

NMR Structure
(-)
Class: Small proteins (3458)

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Few Secondary Structures (1120)

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: no clan defined [family: Atracotoxin] (3)

(-) Gene Ontology  (3, 3)

NMR Structure(hide GO term definitions)
Chain A   (TXDT1_ATRRO | P01478)
molecular function
    GO:0019871    sodium channel inhibitor activity    Stops, prevents, or reduces the activity of a sodium channel.
biological process
    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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  Cis Peptide Bonds
    Cys A:16 - Pro A:17   [ RasMol ]  
 

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