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(-) Description

Title :  ALPHA-CONOTOXIN PNI1
 
Authors :  S. -H. Hu, J. Gehrmann, L. W. Guddat, P. F. Alewood, D. J. Craik, J. L. Martin
Date :  29 Jan 96  (Deposition) - 21 Apr 97  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.10
Chains :  Asym./Biol. Unit :  A
Keywords :  Neurotoxin, Acetylcholine Receptor, Postsynaptic, Antagonist, Acetylcholine Receptor Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. H. Hu, J. Gehrmann, L. W. Guddat, P. F. Alewood, D. J. Craik, J. L. Martin
The 1. 1 A Crystal Structure Of The Neuronal Acetylcholine Receptor Antagonist, Alpha-Conotoxin Pnia From Conus Pennaceus.
Structure V. 4 417 1996
PubMed-ID: 8740364  |  Reference-DOI: 10.1016/S0969-2126(96)00047-0
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ALPHA-CONOTOXIN PNIA
    Chains: A
    Engineered: YES
    Organism Scientific: CONUS PENNACEUS
    Organism Taxid: 37335

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1NH21Mod. Amino AcidAMINO GROUP

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPRO A:13 , CYS A:16BINDING SITE FOR RESIDUE NH2 A 17

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1A:2 -A:8
2A:3 -A:16

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ALPHA_CONOTOXINPS60014 Alpha-conotoxin family signature.CA1A_CONPE2-16  1A:2-16

(-) Exons   (0, 0)

(no "Exon" information available for 1PEN)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   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 CA1A_CONPE | P50984 from UniProtKB/Swiss-Prot  Length:16

    Alignment length:17
                                          16     
                                    10     | 
            CA1A_CONPE    1 GCCSLPPCAANNPDYC-  -
               SCOP domains d1pena_ A:        SCOP domains
               CATH domains ----------------- CATH domains
               Pfam domains ----------------- Pfam domains
         Sec.struct. author ....hhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ----------------- SAPs(SNPs)
                    PROSITE -ALPHA_CONOTOXIN- PROSITE
                 Transcript ----------------- Transcript
                  1pen A  1 GCCSLPPCAANNPDYCx 17
                                    10      |
                                           17-NH2
   Legend:   → Mismatch (orange background)
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  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
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 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Peptides (792)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (2, 2)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CA1A_CONPE | P50984)
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
        CA1A_CONPE | P50984: 2br8

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