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(-) Description

Title :  NMR STRUCTURE OF CONTRYPHAN-SM CYCLIC PEPTIDE (MAJOR FORM-CIS)
 
Authors :  P. K. Pallaghy, W. He, E. C. Jimenez, B. M. Olivera, R. S. Norton
Date :  22 Nov 99  (Deposition) - 01 May 02  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
Keywords :  Cyclic Peptide, Disulfide Bridge, D-Tryptophan, Cis-Trans Isomerism, Contryphan, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  P. K. Pallaghy, W. He, E. C. Jimenez, B. M. Olivera, R. S. Norton
Structures Of The Contryphan Family Of Cyclic Peptides. Role Of Electrostatic Interactions In Cis-Trans Isomerism.
Biochemistry V. 39 12845 2000
PubMed-ID: 11041849  |  Reference-DOI: 10.1021/BI0010930
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CONTRYPHAN-SM
    Chains: A
    Organism Scientific: CONUS STERCUSMUSCARUM
    Organism Taxid: 89452

 Structural Features

(-) Chains, Units

  
NMR Structure (20x): 

Summary Information (see also Sequences/Alignments below)

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

NMR Structure (3, 3)
No.NameCountTypeFull Name
1CY31Mod. Amino Acid2-AMINO-3-MERCAPTO-PROPIONAMIDE
2DTR1Mod. Amino AcidD-TRYPTOPHAN
3HYP1Mod. Amino Acid4-HYDROXYPROLINE

(-) Sites  (0, 0)

(no "Site" information available for 1DFY)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1DFY)

(-) Cis Peptide Bonds  (1, 20)

NMR Structure
No.ModelResidues
11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20Cys A:2 -Hyp A:3

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CONTRYPHANPS60027 Contryphan family signature.COW_CONSE56-63  1A:2-8

(-) Exons   (0, 0)

(no "Exon" information available for 1DFY)

(-) 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:8
 aligned with COW_CONSE | P58787 from UniProtKB/Swiss-Prot  Length:63

    Alignment length:8
             COW_CONSE   55 GCPWQPWC 62
               SCOP domains d1dfya_  SCOP domains
               CATH domains -------- CATH domains
               Pfam domains -------- Pfam domains
         Sec.struct. author ........ Sec.struct. author
                 SAPs(SNPs) -------- SAPs(SNPs)
                    PROSITE -CONTRYP PROSITE
                 Transcript -------- Transcript
                  1dfy A  1 GCpxQPWc  8
                              ||   |
                              ||   |
                              3-HYP|
                               4-DTR
                                   8-CY3
   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 1DFY)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (3, 3)

NMR Structure(hide GO term definitions)
Chain A   (COW_CONSE | P58787)
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.

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  Cis Peptide Bonds
    Cys A:2 - Hyp A:3   [ RasMol ]  
 

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 Related Entries

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

UniProtKB/Swiss-Prot
        COW_CONSE | P58787: 1dfz

(-) Related Entries Specified in the PDB File

1dfz STRUCTURE OF ALTERNATIVE FORM OF CONTRYPHAN-SM (MINOR FORM - TRANS)
1dg0 STRUCTURE OF DES[GLY1]-CONTRYPHAN-R
1qfb STRUCTURE OF CONTRYPHAN-R