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(-) Description

Title :  ALPHA-CNIA CONOTOXIN FROM CONUS CONSORS, NMR, 43 STRUCTURES
 
Authors :  P. Favreau, I. Krimm, F. Le Gall, M. J. Bobenrieth, H. Lamthanh, F. Bouet, D. Servent, J. Molgo, A. Menez, Y. Letourneux, J. M. Lancelin
Date :  05 Jan 99  (Deposition) - 09 Jul 99  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (43x)
Keywords :  Alpha-Conotoxin, Conus Consors, Nicotinic Acetylcholine Receptor, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  P. Favreau, I. Krimm, F. Le Gall, M. J. Bobenrieth, H. Lamthanh, F. Bouet, D. Servent, J. Molgo, A. Menez, Y. Letourneux, J. M. Lancelin
Biochemical Characterization And Nuclear Magnetic Resonance Structure Of Novel Alpha-Conotoxins Isolated From The Venom Of Conus Consors.
Biochemistry V. 38 6317 1999
PubMed-ID: 10320362  |  Reference-DOI: 10.1021/BI982817Z
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ALPHA-CNIA
    Chains: A
    Engineered: YES
    Organism Scientific: CONUS CONSORS
    Organism Taxid: 101297

 Structural Features

(-) Chains, Units

  
NMR Structure (43x): 

Summary Information (see also Sequences/Alignments below)

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

NMR Structure (1, 1)
No.NameCountTypeFull Name
1NH21Mod. Amino AcidAMINO GROUP

(-) Sites  (1, 1)

NMR Structure (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:14BINDING SITE FOR RESIDUE NH2 A 15

(-) SS Bonds  (2, 2)

NMR Structure
No.Residues
1A:3 -A:8
2A:4 -A:14

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1B45)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1B45)

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ALPHA_CONOTOXINPS60014 Alpha-conotoxin family signature.CA1A_CONCN51-62  1A:3-14

(-) Exons   (0, 0)

(no "Exon" information available for 1B45)

(-) 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:15
 aligned with CA1A_CONCN | P56973 from UniProtKB/Swiss-Prot  Length:64

    Alignment length:15
                                    58     
            CA1A_CONCN   49 GRCCHPACGKYYSCG 63
               SCOP domains d1b45a_ A:      SCOP domains
               CATH domains --------------- CATH domains
               Pfam domains --------------- Pfam domains
         Sec.struct. author .....hhh....... Sec.struct. author
                 SAPs(SNPs) --------------- SAPs(SNPs)
                    PROSITE --ALPHA_CONOTO- PROSITE
                 Transcript --------------- Transcript
                  1b45 A  1 GRCCHPACGKYYSCx 15
                                    10    |
                                         15-NH2
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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  (1, 1)

NMR Structure
(-)
Class: Peptides (792)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1B45)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1B45)

(-) Gene Ontology  (5, 5)

NMR Structure(hide GO term definitions)
Chain A   (CA1A_CONCN | P56973)
molecular function
    GO:0030550    acetylcholine receptor inhibitor activity    Interacting (directly or indirectly) with acetylcholine receptors such that the proportion of receptors in the active form is decreased.
biological process
    GO:2000272    negative regulation of receptor activity    Any process that stops, prevents or reduces the frequency, rate or extent of receptor activity.
    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.
    GO:0035792    other organism postsynaptic membrane    A postsynaptic membrane that is part of another organism, i.e. a secondary organism with which the first organism is interacting. A postsynaptic membrane is a specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters transmit the signal across the synaptic cleft to the postsynaptic membrane.

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