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(-) Description

Title :  ALPHA-CONOTOXIN IMI
 
Authors :  J. Gehrmann, N. L. Daly, D. J. Craik
Date :  20 May 99  (Deposition) - 27 May 99  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (10x)
Keywords :  Conotoxin, Nicotinic Acetylcholine Receptor Blocker (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. Gehrmann, N. L. Daly, P. F. Alewood, D. J. Craik
Solution Structure Of Alpha-Conotoxin Imi By 1H Nuclear Magnetic Resonance.
J. Med. Chem. V. 42 2364 1999
PubMed-ID: 10395477  |  Reference-DOI: 10.1021/JM990114P
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN (ALPHA-CONOTOXIN IMI)
    ChainsA
    EngineeredYES
    Other DetailsTHE PEPTIDE WAS CHEMICALLY SYNTHESIZED. THE SEQUENCE OF THE PEPTIDE IS NATURALLY FOUND IN CONUS IMPERIALIS.
    SyntheticYES

 Structural Features

(-) Chains, Units

  
NMR Structure (10x)

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
1AC1SOFTWAREARG A:11 , CYS A:12BINDING SITE FOR RESIDUE NH2 A 13

(-) SS Bonds  (2, 2)

NMR Structure
No.Residues
1A:2 -A:8
2A:3 -A:12

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ALPHA_CONOTOXINPS60014 Alpha-conotoxin family signature.CA1_CONIM6-16  1A:2-12

(-) Exons   (0, 0)

(no "Exon" information available for 1CNL)

(-) 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:13
 aligned with CA1_CONIM | P50983 from UniProtKB/Swiss-Prot  Length:17

    Alignment length:13
                                    14   
             CA1_CONIM    5 GCCSDPRCAWRCG 17
               SCOP domains d1cnla_ A:    SCOP domains
               CATH domains ------------- CATH domains
               Pfam domains ------------- Pfam domains
         Sec.struct. author ............. Sec.struct. author
                 SAPs(SNPs) ------------- SAPs(SNPs)
                    PROSITE -ALPHA_CONOT- PROSITE
                 Transcript ------------- Transcript
                  1cnl A  1 GCCSDPRCAWRCx 13
                                    10  |
                                       13-NH2

   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: Peptides (792)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (2, 2)

NMR Structure(hide GO term definitions)
Chain A   (CA1_CONIM | P50983)
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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 Related Entries

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

UniProtKB/Swiss-Prot
        CA1_CONIM | P509831e74 1e75 1e76 1g2g 1im1 1imi 2bc7 2bc8 2byp 2c9t 2igu 2moa

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