Show PDB file:   
         Plain Text   HTML   (compressed file size)
QuickSearch:   
by PDB,NDB,UniProt,PROSITE Code or Search Term(s)  
(-)Asymmetric Unit
collapse expand < >
Image Asymmetric Unit
Asymmetric Unit  (Jmol Viewer)

(-) Description

Title :  HIGH RESOLUTION SOLID-STATE NMR STRUCTURE OF KALIOTOXIN
 
Authors :  J. Korukottu, A. Lange, V. Vijayan, R. Schneider, O. Pongs, S. Becker, M. Baldus, M. Zweckstetter
Date :  14 Mar 07  (Deposition) - 27 May 08  (Release) - 24 Feb 09  (Revision)
Method :  SOLID-STATE NMR
Resolution :  NOT APPLICABLE
Chains :  Asym. Unit :  A  (20x)
Keywords :  Toxin, Ionic Channel Inhibitor, Potassium Channel Inhibitor, Amidation, Neurotoxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. Korukottu, A. Lange, V. Vijayan, R. Schneider, O. Pongs, S. Becker, M. Baldus, M. Zweckstetter
Conformational Plasticity In Ion Channel Recognition Of A Peptide Toxin
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - POTASSIUM CHANNEL TOXIN ALPHA-KTX 3.1
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Organism Common: SCORPION
    Organism Scientific: ANDROCTONUS MAURETANICUS
    Organism Taxid: 6859
    Synonym: KALIOTOXIN, KALIOTOXIN-1, KTX-1

 Structural Features

(-) Chains, Units

  
Asymmetric Unit (20x): 

Summary Information (see also Sequences/Alignments below)

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

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

(-) Sites  (0, 0)

(no "Site" information available for 2UVS)

(-) SS Bonds  (3, 3)

Asymmetric Unit
No.Residues
1A:8 -A:28
2A:14 -A:33
3A:18 -A:35

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SCORP_SHORT_TOXINPS01138 Scorpion short toxins signature.KAX31_ANDMA14-35  1A:14-35

(-) Exons   (0, 0)

(no "Exon" information available for 2UVS)

(-) Sequences/Alignments

Asymmetric 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:38
 aligned with KAX31_ANDMA | P24662 from UniProtKB/Swiss-Prot  Length:38

    Alignment length:38
                                    10        20        30        
           KAX31_ANDMA    1 GVEINVKCSGSPQCLKPCKDAGMRFGKCMNRKCHCTPK 38
               SCOP domains d2uvsa1 A:1-38 Kaliotoxin (KTX)        SCOP domains
               CATH domains -------------------------------------- CATH domains
               Pfam domains -----Toxin_2-2uvsA01 A:6-36         -- Pfam domains
         Sec.struct. author ..ee....hhhhhhhhhhhhh..eeeee....eeee.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------- SAPs(SNPs)
                    PROSITE -------------SCORP_SHORT_TOXIN     --- PROSITE
                 Transcript -------------------------------------- Transcript
                  2uvs A  1 GVEINVKCSGSPQCLKPCKDAGMRFGKCMNRKCHCTPK 38
                                    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  (1, 1)

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

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (1, 1)

Asymmetric Unit
(-)
Clan: Knottin_1 (78)

(-) Gene Ontology  (4, 4)

Asymmetric Unit(hide GO term definitions)
Chain A   (KAX31_ANDMA | P24662)
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.
    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.

 Visualization

(-) Interactive Views

Asymmetric Unit
  Complete Structure
    Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
    WebMol | AstexViewer[tm]@PDBe
(Java Applets, require no local installation except for Java; loading may be slow)
    STRAP
(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    RasMol
(require local installation)
    Molscript (VRML)
(requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)
 
  Ligands, Modified Residues, Ions
(no "Ligands, Modified Residues, Ions" information available for 2uvs)
 
  Sites
(no "Sites" information available for 2uvs)
 
  Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 2uvs)
 

(-) Still Images

Jmol
  protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick
[ Asym. Unit PNG format ](automatic orientation, automatically generated)
Molscript
  protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick
[ mono PDF format | stereo PDF format ](default orientation, automatically generated)

 Databases and Analysis Tools

(-) Databases

Access by PDB/NDB ID
  2uvs
    Family and Domain Information: ProDom | SYSTERS
    General Structural Information: GlycoscienceDB | MMDB | NDB | OCA | PDB | PDBe | PDBj | PDBsum | PDBWiki | PQS | PROTEOPEDIA
    Orientation in Membranes: OPM
    Protein Surface: SURFACE
    Secondary Structure: DSSP (structure derived) | HSSP (homology derived)
    Structural Genomics: GeneCensus
    Structural Neighbours: CE | VAST
    Structure Classification: CATH | Dali | SCOP
    Validation and Original Data: BMRB Data View | BMRB Restraints Grid | EDS | PROCHECK | RECOORD | WHAT_CHECK
 
Access by UniProt ID/Accession number
  KAX31_ANDMA | P24662
    Comparative Protein Structure Models: ModBase
    Genomic Information: Ensembl
    Protein-protein Interaction: DIP
    Sequence, Family and Domain Information: InterPro | Pfam | SMART | UniProtKB/SwissProt
 
Access by Enzyme Classificator   (EC Number)
  (no 'Enzyme Classificator' available)
    General Enzyme Information: BRENDA | EC-PDB | Enzyme | IntEnz
    Pathway: KEGG | MetaCyc
 
Access by Disease Identifier   (MIM ID)
  (no 'MIM ID' available)
    Disease Information: OMIM
 
Access by GenAge ID
  (no 'GenAge ID' available)
    Age Related Information: GenAge

(-) Analysis Tools

Access by PDB/NDB ID
    Domain Information: XDom
    Interatomic Contacts of Structural Units: CSU
    Ligand-protein Contacts: LPC
    Protein Cavities: castP
    Sequence and Secondary Structure: PDBCartoon
    Structure Alignment: STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
    Structure and Sequence Browser: STING
 
Access by UniProt ID/Accession number
  KAX31_ANDMA | P24662
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)

 Related Entries

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

UniProtKB/Swiss-Prot
        KAX31_ANDMA | P24662: 1ktx 1xsw 2ktx 3odv

(-) Related Entries Specified in the PDB File

1ktx KALIOTOXIN (KTX) (NMR, 11 STRUCTURES)
2ktx COMPLETE KALIOTOXIN FROM ANDROCTONUS MAURETANICUS MAURETANICUS, NMR, 18 STRUCTURES
2uvt HIGH RESOLUTION SOLID-STATE NMR STRUCTURE OF KALIOTOXIN BOUND TO POTASSIUM CHANNEL