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(-) Description

Title :  ALPHA CONOTOXIN GI: 2-13;3-7 DISULFIDE BOND ISOMER NMR, 24 STRUCTURES
 
Authors :  J. Gehrmann, P. F. Alewood, D. J. Craik
Date :  18 Jan 98  (Deposition) - 16 Feb 99  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (24x)
Keywords :  Alpha-Conotoxin, Nicotinic Acetylcholine Receptor, Disulfide Bond Isomers, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. Gehrmann, P. F. Alewood, D. J. Craik
Structure Determination Of The Three Disulfide Bond Isomers Of Alpha-Conotoxin Gi: A Model For The Role Of Disulfide Bonds In Structural Stability.
J. Mol. Biol. V. 278 401 1998
PubMed-ID: 9571060  |  Reference-DOI: 10.1006/JMBI.1998.1701
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ALPHA-CONOTOXIN GI
    Chains: A
    Engineered: YES
    Other Details: AMIDATED C-TERMINUS
    Synonym: GI(2-13,3-7)

 Structural Features

(-) Chains, Units

  
NMR Structure (24x): 

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
1AC1SOFTWARECYS A:13BINDING SITE FOR RESIDUE NH2 A 14

(-) SS Bonds  (2, 2)

NMR Structure
No.Residues
1A:2 -A:13
2A:3 -A:7

(-) Cis Peptide Bonds  (1, 24)

NMR Structure
No.ModelResidues
11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24Asn A:4 -Pro A:5

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ALPHA_CONOTOXINPS60014 Alpha-conotoxin family signature.CA1A_CONGE2-13  1A:2-13

(-) Exons   (0, 0)

(no "Exon" information available for 1XGB)

(-) 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:14
 aligned with CA1A_CONGE | P01519 from UniProtKB/Swiss-Prot  Length:15

    Alignment length:14
                                    10    
            CA1A_CONGE    1 ECCNPACGRHYSCG 14
               SCOP domains d1xgba_ A:     SCOP domains
               CATH domains -------------- CATH domains
               Pfam domains -------------- Pfam domains
         Sec.struct. author .............. Sec.struct. author
                 SAPs(SNPs) -------------- SAPs(SNPs)
                    PROSITE -ALPHA_CONOTO- PROSITE
                 Transcript -------------- Transcript
                  1xgb A  1 ECCNPACGRHYSCx 14
                                    10   |
                                        14-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 1XGB)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (2, 2)

NMR Structure(hide GO term definitions)
Chain A   (CA1A_CONGE | P01519)
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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  1xgb
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 Related Entries

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

UniProtKB/Swiss-Prot
        CA1A_CONGE | P01519: 1not 1qs3 1xga 1xgc 2fr9 2frb

(-) Related Entries Specified in the PDB File

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