TOK1G_ATRRO
ID TOK1G_ATRRO Reviewed; 76 AA.
AC S0F1M6;
DT 29-OCT-2014, integrated into UniProtKB/Swiss-Prot.
DT 18-SEP-2013, sequence version 1.
DT 25-MAY-2022, entry version 14.
DE RecName: Full=Omega/kappa-hexatoxin-Ar1g {ECO:0000303|PubMed:24593665};
DE Flags: Precursor;
OS Atrax robustus (Sydney funnel-web spider).
OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Chelicerata; Arachnida; Araneae;
OC Mygalomorphae; Hexathelidae; Atrax.
OX NCBI_TaxID=6903;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RC TISSUE=Venom gland;
RX PubMed=24593665; DOI=10.1186/1471-2164-15-177;
RA Pineda S.S., Sollod B.L., Wilson D., Darling A., Sunagar K., Undheim E.A.,
RA Kely L., Antunes A., Fry B.G., King G.F.;
RT "Diversification of a single ancestral gene into a successful toxin
RT superfamily in highly venomous Australian funnel-web spiders.";
RL BMC Genomics 15:177-177(2014).
CC -!- FUNCTION: Toxin that may inhibit ion channels. {ECO:0000305}.
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000305|PubMed:24593665}.
CC -!- TISSUE SPECIFICITY: Expressed by the venom gland.
CC {ECO:0000305|PubMed:24593665}.
CC -!- DOMAIN: The presence of a 'disulfide through disulfide knot'
CC structurally defines this protein as a knottin. {ECO:0000250}.
CC -!- MISCELLANEOUS: Several paralogs that code for the same precursor are
CC shown in this entry, whereas an additional paralog is shown in AC
CC S0F1N2. {ECO:0000305|PubMed:24593665}.
CC -!- SIMILARITY: Belongs to the neurotoxin 08 (Shiva) family. 02
CC (omega/kappa toxin) subfamily. {ECO:0000305}.
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DR EMBL; HG001293; CDF44154.1; -; mRNA.
DR EMBL; HG001295; CDF44156.1; -; mRNA.
DR EMBL; HG001296; CDF44157.1; -; mRNA.
DR EMBL; HG001297; CDF44158.1; -; mRNA.
DR AlphaFoldDB; S0F1M6; -.
DR SMR; S0F1M6; -.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0099106; F:ion channel regulator activity; IEA:UniProtKB-KW.
DR GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
PE 3: Inferred from homology;
KW Cleavage on pair of basic residues; Disulfide bond;
KW Ion channel impairing toxin; Knottin; Secreted; Signal; Toxin.
FT SIGNAL 1..22
FT /evidence="ECO:0000255"
FT PROPEP 23..35
FT /evidence="ECO:0000250"
FT /id="PRO_0000430896"
FT CHAIN 38..76
FT /note="Omega/kappa-hexatoxin-Ar1g"
FT /id="PRO_0000430897"
FT DISULFID 40..55
FT /evidence="ECO:0000250"
FT DISULFID 47..60
FT /evidence="ECO:0000250"
FT DISULFID 54..74
FT /evidence="ECO:0000250"
SQ SEQUENCE 76 AA; 8373 MW; 1A30EFB457BE6CDF CRC64;
MNTATGFIVL LVLATVLGGI EAGESHMRKD AMGRVRRQYC VPVDQPCSLN TQPCCDDATC
TQELNENDNT VYYCRA