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(-) Description

Title :  SOLUTION STRUCTURE OF ALPHA-CONOTOXIN MII
 
Authors :  J. M. Hill, C. J. Oomen, L. P. Miranda, J. P. Bingham, P. F. Alewood, D. J. Craik
Date :  05 Oct 98  (Deposition) - 21 Oct 98  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
Keywords :  Neurotoxin, Nicotinic Acetylcholine Receptor, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. M. Hill, C. J. Oomen, L. P. Miranda, J. P. Bingham, P. F. Alewood, D. J. Craik
Three-Dimensional Solution Structure Of Alpha-Conotoxin Mii By Nmr Spectroscopy: Effects Of Solution Environment On Helicity.
Biochemistry V. 37 15621 1998
PubMed-ID: 9843366  |  Reference-DOI: 10.1021/BI981535W
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN (ALPHA CONOTOXIN MII)
    Chains: A
    EC Number: 3.2.1.17
    Engineered: YES
    Synthetic: YES

 Structural Features

(-) Chains, Units

  
NMR Structure (20x): 

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
1AC1SOFTWARESER A:13 , CYS A:16BINDING SITE FOR RESIDUE NH2 A 17

(-) SS Bonds  (2, 2)

NMR Structure
No.Residues
1A:2 -A:8
2A:3 -A:16

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ALPHA_CONOTOXINPS60014 Alpha-conotoxin family signature.CA2_CONMA50-64  1A:2-16

(-) Exons   (0, 0)

(no "Exon" information available for 1MII)

(-) 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:17
 aligned with CA2_CONMA | P56636 from UniProtKB/Swiss-Prot  Length:68

    Alignment length:17
                                    58       
             CA2_CONMA   49 GCCSNPVCHLEHSNLCG 65
               SCOP domains d1miia_ A:        SCOP domains
               CATH domains ----------------- CATH domains
               Pfam domains Toxin_8-1miiA01 - Pfam domains
         Sec.struct. author ......hhhhh...... Sec.struct. author
                 SAPs(SNPs) ----------------- SAPs(SNPs)
                    PROSITE -ALPHA_CONOTOXIN- PROSITE
                 Transcript ----------------- Transcript
                  1mii A  1 GCCSNPVCHLEHSNLCx 17
                                    10      |
                                           17-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: Peptides (792)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: no clan defined [family: Toxin_8] (6)

(-) Gene Ontology  (5, 5)

NMR Structure(hide GO term definitions)
Chain A   (CA2_CONMA | P56636)
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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 Related Entries

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

UniProtKB/Swiss-Prot
        CA2_CONMA | P56636: 1m2c 2ajw 2ak0

(-) Related Entries Specified in the PDB File

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