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P46112

- KAX33_LEIQH

UniProt

P46112 - KAX33_LEIQH

Protein

Potassium channel toxin alpha-KTx 3.3

Gene
N/A
Organism
Leiurus quinquestriatus hebraeus (Yellow scorpion)
Status
Reviewed - Annotation score: 3 out of 5- Experimental evidence at protein leveli
  1. Functioni

    Potent inhibitor of shaker potassium channels as well as the mammalian homologs of shaker.

    GO - Molecular functioni

    1. ion channel inhibitor activity Source: InterPro

    GO - Biological processi

    1. defense response Source: InterPro
    2. pathogenesis Source: InterPro

    Keywords - Molecular functioni

    Ion channel impairing toxin, Neurotoxin, Potassium channel impairing toxin, Toxin

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Potassium channel toxin alpha-KTx 3.3
    Alternative name(s):
    Agitoxin-3
    Short name:
    AgTx-3
    Short name:
    AgTx3
    OrganismiLeiurus quinquestriatus hebraeus (Yellow scorpion)
    Taxonomic identifieri6884 [NCBI]
    Taxonomic lineageiEukaryotaMetazoaEcdysozoaArthropodaChelicerataArachnidaScorpionesButhidaButhoideaButhidaeLeiurus

    Subcellular locationi

    GO - Cellular componenti

    1. extracellular region Source: UniProtKB-SubCell

    Keywords - Cellular componenti

    Secreted

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Peptidei1 – 3838Potassium channel toxin alpha-KTx 3.3PRO_0000044927Add
    BLAST

    Amino acid modifications

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Disulfide bondi8 ↔ 28By similarity
    Disulfide bondi14 ↔ 33By similarity
    Disulfide bondi18 ↔ 35By similarity

    Keywords - PTMi

    Disulfide bond

    Expressioni

    Tissue specificityi

    Expressed by the venom gland.

    Structurei

    3D structure databases

    ProteinModelPortaliP46112.
    SMRiP46112. Positions 1-38.
    ModBaseiSearch...
    MobiDBiSearch...

    Family & Domainsi

    Region

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Regioni26 – 338Interaction with Ca(2+)-activated K(+) channelsSequence Analysis

    Sequence similaritiesi

    Family and domain databases

    Gene3Di3.30.30.10. 1 hit.
    InterProiIPR003614. Scorpion_toxin-like.
    IPR001947. Scorpion_toxinS_K_inh.
    [Graphical view]
    PfamiPF00451. Toxin_2. 1 hit.
    [Graphical view]
    PRINTSiPR00286. CHARYBDTOXIN.
    ProDomiPD003586. Scorpion_toxinS. 1 hit.
    [Graphical view] [Entries sharing at least one domain]
    SUPFAMiSSF57095. SSF57095. 1 hit.
    PROSITEiPS01138. SCORP_SHORT_TOXIN. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    P46112-1 [UniParc]FASTAAdd to Basket

    « Hide

    GVPINVPCTG SPQCIKPCKD AGMRFGKCMN RKCHCTPK                38
    Length:38
    Mass (Da):4,107
    Last modified:November 1, 1995 - v1
    Checksum:iE5945513F87B51CE
    GO

    Sequence databases

    PIRiC54471.

    Cross-referencesi

    Sequence databases

    PIRi C54471.

    3D structure databases

    ProteinModelPortali P46112.
    SMRi P46112. Positions 1-38.
    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Family and domain databases

    Gene3Di 3.30.30.10. 1 hit.
    InterProi IPR003614. Scorpion_toxin-like.
    IPR001947. Scorpion_toxinS_K_inh.
    [Graphical view ]
    Pfami PF00451. Toxin_2. 1 hit.
    [Graphical view ]
    PRINTSi PR00286. CHARYBDTOXIN.
    ProDomi PD003586. Scorpion_toxinS. 1 hit.
    [Graphical view ] [Entries sharing at least one domain ]
    SUPFAMi SSF57095. SSF57095. 1 hit.
    PROSITEi PS01138. SCORP_SHORT_TOXIN. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. "Purification and characterization of three inhibitors of voltage-dependent K+ channels from Leiurus quinquestriatus var. hebraeus venom."
      Garcia M.L., Garcia-Calvo M., Hidalgo P., Lee A., Mackinnon R.
      Biochemistry 33:6834-6839(1994) [PubMed] [Europe PMC] [Abstract]
      Cited for: PROTEIN SEQUENCE.
      Tissue: Venom.
    2. "Moving pieces in a taxonomic puzzle: venom 2D-LC/MS and data clustering analyses to infer phylogenetic relationships in some scorpions from the Buthidae family (Scorpiones)."
      Nascimento D.G., Rates B., Santos D.M., Verano-Braga T., Barbosa-Silva A., Dutra A.A.A., Biondi I., Martin-Eauclaire M.-F., De Lima M.E., Pimenta A.M.C.
      Toxicon 47:628-639(2006) [PubMed] [Europe PMC] [Abstract]
      Cited for: IDENTIFICATION BY MASS SPECTROMETRY.

    Entry informationi

    Entry nameiKAX33_LEIQH
    AccessioniPrimary (citable) accession number: P46112
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: November 1, 1995
    Last sequence update: November 1, 1995
    Last modified: October 1, 2014
    This is version 66 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programAnimal Toxin Annotation Program

    Miscellaneousi

    Keywords - Technical termi

    Direct protein sequencing

    Documents

    1. Scorpion potassium channel toxins
      Nomenclature of scorpion potassium channel toxins and list of entries
    2. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3