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(-) Description

Title :  SOLUTION STRUCTURE OF CONOTOXIN Y-PIIIE FROM CONUS PURPURASCENS, NMR, 14 STRUCTURES
 
Authors :  S. S. Mitchell, K. Shon, M. P. Foster, B. M. Olivera, C. M. Ireland
Date :  13 Aug 97  (Deposition) - 14 Oct 98  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (14x)
Keywords :  Conotoxin, Neurotoxin, Acetylcholine (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. S. Mitchell, K. J. Shon, M. P. Foster, D. R. Davis, B. M. Olivera, C. M. Ireland
Three-Dimensional Solution Structure Of Conotoxin Psi-Piiie, An Acetylcholine Gated Ion Channel Antagonist.
Biochemistry V. 37 1215 1998
PubMed-ID: 9477946  |  Reference-DOI: 10.1021/BI972186T
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CONOTOXIN Y-PIIIE
    Chains: A
    Engineered: YES
    Organism Scientific: CONUS PURPURASCENS
    Organism Taxid: 41690
    Other Details: CONOTOXIN Y-PIIIE CONTAINS THE SAME DISULFIDE BONDING PATTERN AS THE MU-CONOTOXINS

 Structural Features

(-) Chains, Units

  
NMR Structure (14x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 4)

NMR Structure (2, 4)
No.NameCountTypeFull Name
1HYP3Mod. Amino Acid4-HYDROXYPROLINE
2NH21Mod. Amino AcidAMINO GROUP

(-) Sites  (1, 1)

NMR Structure (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:24BINDING SITE FOR RESIDUE NH2 A 25

(-) SS Bonds  (3, 3)

NMR Structure
No.Residues
1A:4 -A:16
2A:5 -A:21
3A:10 -A:22

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1AS5)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 3)

NMR Structure (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_CM3E_CONPU_001 *M56LCM3E_CONPU  ---  ---AL6L
2UniProtVAR_CM3E_CONPU_002 *R59KCM3E_CONPU  ---  ---AK9K
3UniProtVAR_CM3E_CONPU_003 *G74RCM3E_CONPU  ---  ---AR24R
   * ID not provided by source
  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1AS5)

(-) Exons   (0, 0)

(no "Exon" information available for 1AS5)

(-) 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:25
 aligned with CM3E_CONPU | P56529 from UniProtKB/Swiss-Prot  Length:75

    Alignment length:25
                                    60        70     
            CM3E_CONPU   51 HPPCCMYGRCRRYPGCSSASCCQGG 75
               SCOP domains d1as5a_ A:                SCOP domains
               CATH domains ------------------------- CATH domains
               Pfam domains ------------------------- Pfam domains
         Sec.struct. author ......................... Sec.struct. author
                 SAPs(SNPs) -----L--K--------------R- SAPs(SNPs)
                    PROSITE ------------------------- PROSITE
                 Transcript ------------------------- Transcript
                  1as5 A  1 HppCCLYGKCRRYpGCSSASCCQRx 25
                             ||     10   |    20    |
                             ||         14-HYP     25-NH2
                             2-HYP                   
                              3-HYP
   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 1AS5)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1AS5)

(-) Gene Ontology  (4, 4)

NMR Structure(hide GO term definitions)
Chain A   (CM3E_CONPU | P56529)
molecular function
    GO:0008200    ion channel inhibitor activity    Stops, prevents, or reduces the activity of an ion 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.
    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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  1as5
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 Related Entries

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UniProtKB/Swiss-Prot
        CM3E_CONPU | P56529: 1jlo

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