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(-) Description

Title :  SOLUTION STRUCTURE OF GXTX-1E
 
Authors :  S. K. Lee, H. H. Jung, J. Y. Lee, C. W. Lee, J. I. Kim
Date :  02 May 09  (Deposition) - 26 May 10  (Release) - 19 Apr 17  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
NMR Structure *:  A  (1x)
Keywords :  Membrane Protein Inhibitor, Potassium Channel Inhibitor, Ionic Channel Inhibitor, Knottin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. Lee, M. Milescu, H. H. Jung, J. Y. Lee, C. H. Bae, C. W. Lee, H. H. Kim, K. J. Swartz, J. I. Kim
Solution Structure Of Gxtx-1E, A High Affinity Tarantula Toxin Interacting With Voltage Sensors In Kv2. 1 Potassium Channels.
Biochemistry V. 49 5134 2010
PubMed-ID: 20509680  |  Reference-DOI: 10.1021/BI100246U

(-) Compounds

Molecule 1 - GUANGXITOXIN-1EGXTX-1E
    Chains: A
    Engineered: YES
    Organism Scientific: PLESIOPHRICTUS GUANGXIENSIS
    Organism Taxid: 378181
    Synonym: GXTX-1E, GXTX1E
    Synthetic: YES

 Structural Features

(-) Chains, Units

  1
NMR Structure (20x): A
NMR Structure * (1x): A

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 2WH9)

(-) Sites  (0, 0)

(no "Site" information available for 2WH9)

(-) SS Bonds  (3, 3)

NMR Structure
No.Residues
1A:4 -A:19
2A:11 -A:24
3A:18 -A:31

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2WH9)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2WH9)

(-) PROSITE Motifs  (0, 0)

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(-) Exons   (0, 0)

(no "Exon" information available for 2WH9)

(-) 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:36
 aligned with TXG1E_CHIGU | P84835 from UniProtKB/Swiss-Prot  Length:36

    Alignment length:36
                                    10        20        30      
           TXG1E_CHIGU    1 EGECGGFWWKCGSGKPACCPKYVCSPKWGLCNFPMP 36
               SCOP domains ------------------------------------ SCOP domains
               CATH domains ------------------------------------ CATH domains
               Pfam domains ------------------------------------ Pfam domains
         Sec.struct. author ........ee............ee.....eee.... Sec.struct. author
                 SAPs(SNPs) ------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------ PROSITE
                 Transcript ------------------------------------ Transcript
                  2wh9 A  1 EGECGGFWWKCGSGKPACCPKYVCSPKWGLCNFPMP 36
                                    10        20        30
   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  (0, 0)

(no "SCOP Domain" information available for 2WH9)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2WH9)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2WH9)

(-) Gene Ontology  (3, 3)

NMR Structure(hide GO term definitions)
Chain A   (TXG1E_CHIGU | P84835)
molecular function
    GO:0008200    ion channel inhibitor activity    Stops, prevents, or reduces the activity of an ion channel.
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.

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  2wh9
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  TXG1E_CHIGU | P84835
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 Related Entries

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