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(-) Description

Title :  SOLUTION STRUCTURE OF BMKALPHAIT01, AN ALPHA-INSECT TOXIN FROM THE VENOM OF THE CHINESE SCORPION BUTHUS MARTENSI KARSCH
 
Authors :  X. T. Tong, X. Chen, H. M. Wu
Date :  08 Oct 06  (Deposition) - 16 Oct 07  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
Keywords :  An Alpha-Insect Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  X. Tong, J. Zhu, Y. Ma, X. Chen, G. Wu, F. He, C. Cao, H. Wu
Solution Structure Of Bmkalphait01, An Alpha-Insect Toxin From The Venom Of The Chinese Scorpion Buthus Martensii Karsch
Biochemistry V. 46 11322 2007
PubMed-ID: 17877370  |  Reference-DOI: 10.1021/BI7006788
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ALPHA-NEUROTOXIN TX12
    Chains: A
    Organism Common: CHINESE SCORPION
    Organism Scientific: MESOBUTHUS MARTENSII
    Organism Taxid: 34649
    Other Details: BUTHUS MARTENSI KARSCH, SCORPION FROM HENAN PROVINCE OF P.R. CHINA
    Strain: MARTENSI
    Synonym: BMKALPHATX12, ALPHA-NEUROTOXIN IT01, BMKALPHAIT01, BMKALPHAIT1

 Structural Features

(-) Chains, Units

  
NMR Structure (20x): 

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 2E0H)

(-) Sites  (0, 0)

(no "Site" information available for 2E0H)

(-) SS Bonds  (4, 4)

NMR Structure
No.Residues
1A:12 -A:63
2A:16 -A:36
3A:22 -A:46
4A:26 -A:48

(-) Cis Peptide Bonds  (1, 20)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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(-) PROSITE Motifs  (0, 0)

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(-) Exons   (0, 0)

(no "Exon" information available for 2E0H)

(-) 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:64
 aligned with SC12_MESMA | Q9GQW3 from UniProtKB/Swiss-Prot  Length:85

    Alignment length:64
                                    29        39        49        59        69        79    
            SC12_MESMA   20 VRDAYIAQNYNCVYHCARDAYCNELCTKNGAKSGSCPYLGEHKFACYCKDLPDNVPIRVPGKCH 83
               SCOP domains d2e0ha_ A: alpha toxin                                           SCOP domains
               CATH domains 2e0hA00 A:1-64  [code=3.30.30.10, no name defined]               CATH domains
               Pfam domains ---------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeee............hhhhhhhhhhhh...eee...........eeeee............. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------- Transcript
                  2e0h A  1 VRDAYIAQNYNCVYHCARDAYCNELCTKNGAKSGSCPYLGEHKFACYCKDLPDNVPIRVPGKCH 64
                                    10        20        30        40        50        60
   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: Small proteins (3458)

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2E0H)

(-) Gene Ontology  (3, 3)

NMR Structure(hide GO term definitions)
Chain A   (SC12_MESMA | Q9GQW3)
molecular function
    GO:0008200    ion channel inhibitor activity    Stops, prevents, or reduces the activity of an ion channel.
biological process
    GO:0006952    defense response    Reactions, triggered in response to the presence of a foreign body or the occurrence of an injury, which result in restriction of damage to the organism attacked or prevention/recovery from the infection caused by the attack.
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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  Cis Peptide Bonds
    Asn A:9 - Tyr A:10   [ RasMol ]  
 

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 Related Entries

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

UniProtKB/Swiss-Prot
        SC12_MESMA | Q9GQW3: 1omy

(-) Related Entries Specified in the PDB File

1aho THE AB INITIO STRUCTURE DETERMINATION AND REFINEMENT OF A SCORPION PROTEIN TOXIN
1lqi SOLUTION STRUCTURES OF A HIGHLY INSECTICIDAL RECOMBINANT SCORPION ALPHA-TOXIN AND A MUTANT WITH INCREASED ACTIVITY
1lqq 1H-NMR-DERIVED SECONDARY STRUCTURE AND THE OVERALL FOLD OF THE POTENT ANTI-MAMMAL AND ANTI-INSECT TOXIN III FROM THE SCORPION LEIURUS QUINQUESTRIATUS QUINQUESTRIATUS
1omy CRYSTALLIZATION AND PRELIMINARY CRYSTALLOGRAPHIC STUDY OF RBMKALPHAIT1, A RECOMBINANT ALPHA-INSECT TOXIN FROM THE SCORPION BUTHUS MARTENSII KARSCH