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(-) Description

Title :  STRUCTURAL AND FUNCTIONAL CHARACTERIZATION OF A NOVEL HOMODIMERIC THREE-FINGER NEUROTOXIN FROM THE VENOM OF OPHIOPHAGUS HANNAH (KING COBRA)
 
Authors :  A. Roy, X. Zhou, M. Z. Chong, D. D'Hoedt, C. S. Foo, N. Rajagopalan, S. Nirthanan, D. Bertrand, J. Sivaraman, R. M. Kini
Date :  15 May 09  (Deposition) - 12 Jan 10  (Release) - 23 Mar 10  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.55
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Haditoxin, Three Finger Toxin, Ophiophagus Hannah, Snake Venom, Neurotoxin, Nicotinic Acetylcholine Receptors, Acetylcholine Receptor Inhibitor, Disulfide Bond, Postsynaptic Neurotoxin, Secreted, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. Roy, X. Zhou, M. Z. Chong, D. D'Hoedt, C. S. Foo, N. Rajagopalan, S. Nirthanan, D. Bertrand, J. Sivaraman, R. M. Kini
Structural And Functional Characterization Of A Novel Homodimeric Three-Finger Neurotoxin From The Venom Of Ophiophagus Hannah (King Cobra)
J. Biol. Chem. V. 285 8302 2010
PubMed-ID: 20071329  |  Reference-DOI: 10.1074/JBC.M109.074161

(-) Compounds

Molecule 1 - MUSCARINIC TOXIN-LIKE PROTEIN 3 HOMOLOG
    Chains: A, B
    Organism Common: KING COBRA
    Organism Scientific: OPHIOPHAGUS HANNAH
    Organism Taxid: 8665
    Synonym: HADITOXIN, MTLP-3 HOMOLOG

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 3HH7)

(-) Sites  (0, 0)

(no "Site" information available for 3HH7)

(-) SS Bonds  (8, 8)

Asymmetric/Biological Unit
No.Residues
1A:3 -A:24
2A:17 -A:41
3A:45 -A:57
4A:58 -A:63
5B:3 -B:24
6B:17 -B:41
7B:45 -B:57
8B:58 -B:63

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3HH7)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3HH7)

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SNAKE_TOXINPS00272 Snake toxins signature.3SO8_OPHHA61-82
 		  2A:40-61
B:40-61

(-) Exons   (0, 0)

(no "Exon" information available for 3HH7)

(-) 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:65
 aligned with 3SO8_OPHHA | A8N286 from UniProtKB/Swiss-Prot  Length:86

    Alignment length:65
                                    31        41        51        61        71        81     
            3SO8_OPHHA   22 TKCYNHQSTTPETTEICPDSGYFCYKSSWIDGREGRIERGCTFTCPELTPNGKYVYCCRRDKCNQ 86
               SCOP domains d3hh7a_ A: automated matches                                      SCOP domains
               CATH domains 3hh7A00 A:1-65 CD59                                               CATH domains
               Pfam domains ----------------------------------------------------------------- Pfam domains
         Sec.struct. author .eee.........eee......eeeeeeeee..eeeeeeeee.........eeeeeee....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------SNAKE_TOXIN           ---- PROSITE
                 Transcript ----------------------------------------------------------------- Transcript
                  3hh7 A  1 TKCYNHQSTTPETTEICPDSGYFCYKSSWIDGREGRIERGCTFTCPELTPNGKYVYCCRRDKCNQ 65
                                    10        20        30        40        50        60     


Chain B from PDB  Type:PROTEIN  Length:65
 aligned with 3SO8_OPHHA | A8N286 from UniProtKB/Swiss-Prot  Length:86

    Alignment length:65
                                    31        41        51        61        71        81     
            3SO8_OPHHA   22 TKCYNHQSTTPETTEICPDSGYFCYKSSWIDGREGRIERGCTFTCPELTPNGKYVYCCRRDKCNQ 86
               SCOP domains d3hh7b_ B: automated matches                                      SCOP domains
               CATH domains 3hh7B00 B:1-65 CD59                                               CATH domains
               Pfam domains ----------------------------------------------------------------- Pfam domains
         Sec.struct. author .eee.........eee......eeeeeeeee..eeeeeeeee.........eeeeeee....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------SNAKE_TOXIN           ---- PROSITE
                 Transcript ----------------------------------------------------------------- Transcript
                  3hh7 B  1 TKCYNHQSTTPETTEICPDSGYFCYKSSWIDGREGRIERGCTFTCPELTPNGKYVYCCRRDKCNQ 65
                                    10        20        30        40        50        60
   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, 2)

Asymmetric/Biological Unit
(-)
Class: Small proteins (3458)

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3HH7)

(-) Gene Ontology  (3, 3)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (3SO8_OPHHA | A8N286)
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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(no "Cis Peptide Bonds" information available for 3hh7)
 

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 Related Entries

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