ID   BDS21_BUNCN             Reviewed;          36 AA.
AC   P86464;
DT   23-MAR-2010, integrated into UniProtKB/Swiss-Prot.
DT   23-MAR-2010, sequence version 1.
DT   25-MAY-2022, entry version 19.
DE   RecName: Full=Toxin Bcg III 29.21 {ECO:0000303|PubMed:20483220};
DE            Short=Toxin Bcg 29.21 {ECO:0000303|PubMed:20483220};
DE   Flags: Fragment;
OS   Bunodosoma cangicum (Sea anemone).
OC   Eukaryota; Metazoa; Cnidaria; Anthozoa; Hexacorallia; Actiniaria;
OC   Actiniidae; Bunodosoma.
OX   NCBI_TaxID=138296;
RN   [1]
RP   PROTEIN SEQUENCE, AND MASS SPECTROMETRY.
RX   PubMed=20483220; DOI=10.1016/j.cbd.2008.04.002;
RA   Zaharenko A.J., Ferreira W.A. Jr., Oliveira J.S., Richardson M.,
RA   Pimenta D.C., Konno K., Portaro F.C., de Freitas J.C.;
RT   "Proteomics of the neurotoxic fraction from the sea anemone Bunodosoma
RT   cangicum venom: novel peptides belonging to new classes of toxins.";
RL   Comp. Biochem. Physiol. 3D:219-225(2008).
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000305|PubMed:20483220}.
CC       Nematocyst {ECO:0000305|PubMed:20483220}.
CC   -!- MASS SPECTROMETRY: Mass=4303.36; Method=MALDI;
CC       Evidence={ECO:0000269|PubMed:20483220};
CC   -!- SIMILARITY: Belongs to the sea anemone type 3 (BDS) potassium channel
CC       toxin family. {ECO:0000255}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   AlphaFoldDB; P86464; -.
DR   SMR; P86464; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0042151; C:nematocyst; IEA:UniProtKB-SubCell.
DR   GO; GO:0008200; F:ion channel inhibitor activity; IEA:InterPro.
DR   GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR   Gene3D; 2.20.20.10; -; 1.
DR   InterPro; IPR012414; BDS_K_chnl_tox.
DR   InterPro; IPR023355; Myo_ane_neurotoxin_sf.
DR   Pfam; PF07936; Defensin_4; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Disulfide bond; Ion channel impairing toxin;
KW   Nematocyst; Secreted; Toxin.
FT   CHAIN           1..>36
FT                   /note="Toxin Bcg III 29.21"
FT                   /id="PRO_0000392958"
FT   DISULFID        4..?
FT                   /evidence="ECO:0000250|UniProtKB:P61541"
FT   DISULFID        6..31
FT                   /evidence="ECO:0000250|UniProtKB:P61541"
FT   DISULFID        21..?
FT                   /evidence="ECO:0000250|UniProtKB:P61541"
FT   NON_TER         36
SQ   SEQUENCE   36 AA;  3672 MW;  209E16BA4F680299 CRC64;
     GVSCKCGSKK GVYWFGQITG CPGGHGYKGS CSYVLG