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(-) Description

Title :  SOLUTION STRUCTURE OF TIA
 
Authors :  I. A. Sharpe, J. Gehrmann, M. L. Loughnan, L. Thomas, D. A. Adams, A. Atkins, E. Palant, D. J. Craik, D. J. Adams, P. F. Alewood, R. J. Lewis
Date :  10 Apr 01  (Deposition) - 03 Apr 02  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
Keywords :  Conotoxin, Alpha1-Adrenoceptors (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  I. A. Sharpe, J. Gehrmann, M. L. Loughnan, L. Thomas, D. A. Adams, A. Atkins, E. Palant, D. J. Craik, D. J. Adams, P. F. Alewood, R. J. Lewis
Two New Classes Of Conopeptides Inhibit The Alpha1-Adrenoceptor And Noradrenaline Transporter.
Nat. Neurosci. V. 4 902 2001
PubMed-ID: 11528421  |  Reference-DOI: 10.1038/NN0901-902
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN TIA
    Chains: A
    Engineered: YES
    Other Details: THE PEPTIDE WAS CHEMICALLY SYNTHESIZED. THIS SEQUENCE OCCURS NATURALLY IN CONUS TULIPA (FISH- HUNTING CONE SNAIL).
    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
1AC1SOFTWARELYS A:16 , CYS A:19BINDING SITE FOR RESIDUE NH2 A 20

(-) SS Bonds  (2, 2)

NMR Structure
No.Residues
1A:5 -A:11
2A:6 -A:19

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1IEN)

(-) 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:20
 aligned with CA1A_CONTU | P58811 from UniProtKB/Swiss-Prot  Length:58

    Alignment length:20
                                    48        58
            CA1A_CONTU   39 FNWRCCLIPACRRNHKKFCG 58
               SCOP domains d1iena_ A:           SCOP domains
               CATH domains -------------------- CATH domains
               Pfam domains -------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhh.hhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------- SAPs(SNPs)
                    PROSITE -------------------- PROSITE
                 Transcript -------------------- Transcript
                  1ien A  1 FNWRCCLIPACRRNHKKFCx 20
                                    10        20
                                              20-NH2
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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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 1IEN)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (4, 4)

NMR Structure(hide GO term definitions)
Chain A   (CA1A_CONTU | P58811)
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.

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  1ien
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 Related Entries

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

UniProtKB/Swiss-Prot
        CA1A_CONTU | P58811: 2lr9

(-) Related Entries Specified in the PDB File

1ieo 1IEO SEQUENCE (SYNTHETIC) OF CONUS MARMOREUS (MOLLUSC- HUNTING CONE SNAIL)