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(-) Description

Title :  SOLUTION STRUCTURE OF ALPHA-BUNGAROTOXIN BY NMR SPECTROSCOPY
 
Authors :  L. Moise, A. Piserchio, V. J. Basus, E. Hawrot
Date :  20 Nov 01  (Deposition) - 17 Apr 02  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (13x)
Keywords :  Alpha-Bungarotoxin, Long Snake Neurotoxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  L. Moise, A. Piserchio, V. J. Basus, E. Hawrot
Nmr Structural Analysis Of Alpha-Bungarotoxin And Its Complex With The Principal Alpha-Neurotoxin-Binding Sequence On The Alpha 7 Subunit Of A Neuronal Nicotinic Acetylcholine Receptor.
J. Biol. Chem. V. 277 12406 2002
PubMed-ID: 11790782  |  Reference-DOI: 10.1074/JBC.M110320200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ALPHA-BUNGAROTOXIN
    Chains: A
    Organism Common: MANY-BANDED KRAIT
    Organism Scientific: BUNGARUS MULTICINCTUS
    Organism Taxid: 8616
    Synonym: LONG NEUROTOXIN 1

 Structural Features

(-) Chains, Units

  
NMR Structure (13x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1KFH)

(-) Sites  (0, 0)

(no "Site" information available for 1KFH)

(-) SS Bonds  (5, 5)

NMR Structure
No.Residues
1A:3 -A:23
2A:16 -A:44
3A:29 -A:33
4A:48 -A:59
5A:60 -A:65

(-) Cis Peptide Bonds  (3, 20)

NMR Structure
No.ModelResidues
11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13Ser A:9 -Pro A:10
22, 5, 7, 9, 10, 13Lys A:52 -Pro A:53
39, 10Arg A:72 -Pro A:73

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SNAKE_TOXINPS00272 Snake toxins signature.3L21A_BUNMU64-84  1A:43-63

(-) Exons   (0, 0)

(no "Exon" information available for 1KFH)

(-) 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:74
 aligned with 3L21A_BUNMU | P60615 from UniProtKB/Swiss-Prot  Length:95

    Alignment length:74
                                    31        41        51        61        71        81        91    
           3L21A_BUNMU   22 IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG 95
               SCOP domains d1kfha_ A: Bungarotoxin                                                    SCOP domains
               CATH domains 1kfhA00 A:1-74 CD59                                                        CATH domains
               Pfam domains -------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeee......eeee......eeeeeeeeeee....eeeeeeeee..........eeeee.............. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------SNAKE_TOXIN          ----------- PROSITE
                 Transcript -------------------------------------------------------------------------- Transcript
                  1kfh A  1 IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG 74
                                    10        20        30        40        50        60        70
   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: Small proteins (3458)

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (4, 4)

NMR Structure(hide GO term definitions)
Chain A   (3L21A_BUNMU | P60615)
molecular function
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
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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  Cis Peptide Bonds
    Arg A:72 - Pro A:73   [ RasMol ]  
    Lys A:52 - Pro A:53   [ RasMol ]  
    Ser A:9 - Pro A:10   [ RasMol ]  
 

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  1kfh
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  3L21A_BUNMU | P60615
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 Related Entries

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

UniProtKB/Swiss-Prot
        3L21A_BUNMU | P60615: 1abt 1bxp 1haa 1haj 1hc9 1hoy 1idg 1idh 1idi 1idl 1ik8 1ikc 1jbd 1kc4 1kl8 1l4w 1ljz 1lk1 1rgj 2abx 2btx

(-) Related Entries Specified in the PDB File

1kc4 1KC4 CONTAINS ALPHA-BUNGAROTOXIN BOUND TO A 19-RESIDUE FRAGMENT OF THE ALPHA7 SUBUNIT OF THE CHICK NEURONAL NICOTINIC ACETYLCHOLINE RECEPTOR.