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(-) Description

Title :  STRUCTURE AND SODIUM CHANNEL ACTIVITY OF AN EXCITATORY I1-SUPERFAMILY CONOTOXIN
 
Authors :  O. Buczek, D. X. Wei, J. J. Babon, X. D. Yang, B. Fiedler, D. Yoshikami, B. M. Olivera, G. Bulaj, R. S. Norton
Date :  12 Mar 07  (Deposition) - 25 Sep 07  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
Keywords :  Iaa, Iodoacetic Acid; Ina, Sodium Current; Nem, N- Ethylmaleimide; Nmr, Nuclear Magnetic Resonance; Noe, Nuclear Overhauser Effect; Tfa, Trifluoroacetic Acid; Vgsc, Voltage-Gated Sodium Channel. , Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  O. Buczek, D. Wei, J. J. Babon, X. Yang, B. Fiedler, P. Chen, D. Yoshikami, B. M. Olivera, G. Bulaj, R. S. Norton
Structure And Sodium Channel Activity Of An Excitatory I(1)-Superfamily Conotoxin
Biochemistry V. 46 9929 2007
PubMed-ID: 17696362  |  Reference-DOI: 10.1021/BI700797F
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - I-SUPERFAMILY CONOTOXIN R11A
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Organism Scientific: CONUS RADIATUS
    Organism Taxid: 61198
    Synonym: R11.6, CONOTOXIN IOTA-RXIA

 Structural Features

(-) Chains, Units

  
NMR Structure (20x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 3)

NMR Structure (1, 3)
No.NameCountTypeFull Name
1HYP3Mod. Amino Acid4-HYDROXYPROLINE

(-) Sites  (0, 0)

(no "Site" information available for 2P4L)

(-) SS Bonds  (4, 4)

NMR Structure
No.Residues
1A:5 -A:19
2A:12 -A:22
3A:18 -A:27
4A:21 -A:38

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2P4L)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2P4L)

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1I_CONOTOXINPS60019 I-superfamily conotoxin signature.CI1BA_CONRA5-38  1A:5-38

(-) Exons   (0, 0)

(no "Exon" information available for 2P4L)

(-) 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:46
 aligned with CI1BA_CONRA | Q7Z094 from UniProtKB/Swiss-Prot  Length:46

    Alignment length:46
                                    10        20        30        40      
           CI1BA_CONRA    1 GPSFCKADEKPCEYHADCCNCCLSGICAPSTNWILPGCSTSSFFKI 46
               SCOP domains ---------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------- CATH domains
               Pfam domains Toxin_19-2p4lA01 A:1-42                   ---- Pfam domains
         Sec.struct. author ....................ee....ee.................. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------- SAPs(SNPs)
                    PROSITE ----I_CONOTOXIN  PDB: A:5-38          -------- PROSITE
                 Transcript ---------------------------------------------- Transcript
                  2p4l A  1 GpSFCKADEKpCEYHADCCNCCLSGICApSTNWILPGCSTSSFFKI 46
                             |      10|       20        30        40      
                             |       11-HYP            29-HYP             
                             2-HYP
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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)

(no "SCOP Domain" information available for 2P4L)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2P4L)

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: no clan defined [family: Toxin_19] (3)

(-) Gene Ontology  (2, 2)

NMR Structure(hide GO term definitions)
Chain A   (CI1BA_CONRA | Q7Z094)
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
        CI1BA_CONRA | Q7Z094: 2jry 2jtu

(-) Related Entries Specified in the PDB File

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