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(-) Description

Title :  NMR SOLUTION STRUCTURES OF DELTA-CONOTOXIN EVIA FROM CONUS ERMINEUS THAT SELECTIVELY ACTS ON VERTEBRATE NEURONAL NA+ CHANNELS
 
Authors :  L. Volpon, H. Lamthanh, J. Barbier, N. Gilles, J. Molgo, A. Menez, J. M. Lancelin
Date :  13 Oct 00  (Deposition) - 01 Nov 00  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (18x)
Keywords :  Three Disulfide Linkages, Cis/Trans Isomerism Of Leu12- Pro13 Peptide Bond, Hydroxyproline, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  L. Volpon, H. Lamthanh, J. Barbier, N. Gilles, J. M. Lancelin
Nmr Solution Structures Of Delta-Conotoxin Evia From Conus Ermineus That Selectively Acts On Vertebrate Neuronal Na+ Channels.
J. Biol. Chem. V. 279 21356 2004
PubMed-ID: 14976206  |  Reference-DOI: 10.1074/JBC.M309594200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CONOTOXIN EVIA
    Chains: A
    Engineered: YES
    Other Details: THIS STRUCTURE IS IN EQUILIBRIUM WITH THE LEU12-PRO13 CIS ISOMER (1G1Z).
    Other Details - Source: THE SOLID PHASE SYNTHESIS OF CONOTOXIN EVIA WAS CARRIED OUT USING THE F-MOC CHEMISTRY. THE SEQUENCE OF THE PEPTIDE IS NATURALLY FOUND IN CONUS ERMINEUS (ATLANTIC FISH-HUNTING CONE).
    Synthetic: YES

 Structural Features

(-) Chains, Units

  
NMR Structure (18x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

NMR Structure (2, 2)
No.NameCountTypeFull Name
1HYP1Mod. Amino Acid4-HYDROXYPROLINE
2NH21Mod. Amino AcidAMINO GROUP

(-) Sites  (1, 1)

NMR Structure (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELEU A:32BINDING SITE FOR RESIDUE NH2 A 33

(-) SS Bonds  (3, 3)

NMR Structure
No.Residues
1A:3 -A:21
2A:10 -A:25
3A:20 -A:29

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1G1P)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1G1P)

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1DELTA_CONOTOXINPS60005 Delta-conotoxin family signature.CO6A_CONER3-29  1A:3-29

(-) Exons   (0, 0)

(no "Exon" information available for 1G1P)

(-) 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:33
 aligned with CO6A_CONER | P60513 from UniProtKB/Swiss-Prot  Length:32

    Alignment length:33
                                                          32     
                                    10        20        30 | 
            CO6A_CONER    1 DDCIKPYGFCSLPILKNGLCCSGACVGVCADL-  -
               SCOP domains d1g1pa_ A: Conotoxin              SCOP domains
               CATH domains --------------------------------- CATH domains
               Pfam domains --------------------------------- Pfam domains
         Sec.struct. author ................................. Sec.struct. author
                 SAPs(SNPs) --------------------------------- SAPs(SNPs)
                    PROSITE --DELTA_CONOTOXIN  PDB: A:3-2---- PROSITE
                 Transcript --------------------------------- Transcript
                  1g1p A  1 DDCIKpYGFCSLPILKNGLCCSGACVGVCADLx 33
                                 |  10        20        30  |
                                 6-HYP                     33-NH2
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  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  (0, 0)

(no "CATH Domain" information available for 1G1P)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1G1P)

(-) Gene Ontology  (3, 3)

NMR Structure(hide GO term definitions)
Chain A   (CO6A_CONER | P60513)
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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 Related Entries

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

UniProtKB/Swiss-Prot
        CO6A_CONER | P60513: 1g1z

(-) Related Entries Specified in the PDB File

1g1z 1G1Z REPRESENTS THE CONOTOXIN EVIA WITH THE LEU12-PRO13 CIS PEPTIDE BOND.