TX36A_PHORI
ID TX36A_PHORI Reviewed; 47 AA.
AC P83904;
DT 19-JUL-2004, integrated into UniProtKB/Swiss-Prot.
DT 10-MAY-2004, sequence version 1.
DT 25-MAY-2022, entry version 42.
DE RecName: Full=Delta-ctenitoxin-Pr2d;
DE Short=Delta-CNTX-Pr2d;
DE AltName: Full=Neurotoxin PRTx32C1;
OS Phoneutria reidyi (Brazilian Amazonian armed spider) (Ctenus reidyi).
OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Chelicerata; Arachnida; Araneae;
OC Araneomorphae; Entelegynae; Lycosoidea; Ctenidae; Phoneutria.
OX NCBI_TaxID=272752 {ECO:0000305};
RN [1]
RP PROTEIN SEQUENCE, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, AND MASS
RP SPECTROMETRY.
RC TISSUE=Venom;
RX PubMed=16278100; DOI=10.1016/j.cbpc.2005.09.010;
RA Richardson M., Pimenta A.M., Bemquerer M.P., Santoro M.M., Beirao P.S.,
RA Lima M.E., Figueiredo S.G., Bloch C. Jr., Vasconcelos E.A., Campos F.A.,
RA Gomes P.C., Cordeiro M.N.;
RT "Comparison of the partial proteomes of the venoms of Brazilian spiders of
RT the genus Phoneutria.";
RL Comp. Biochem. Physiol. 142:173-187(2006).
RN [2] {ECO:0000305}
RP FUNCTION.
RA Richardson M., Pimenta A.M.C., Bemquerer M.P., Santoro M.M.,
RA Figueiredo S.G., Cordeiro M.N.;
RT "New neurotoxin PRTx32C1 from venom of Brazilian Amazonian armed spider
RT Phoneutria reidyi.";
RL Submitted (APR-2004) to UniProtKB.
CC -!- FUNCTION: Blocks voltage-gated sodium channels (Nav). Causes rapid
CC general spastic paralysis and death when injected in mice at dose
CC levels of less than 2 ug per mouse. {ECO:0000269|Ref.2}.
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000269|PubMed:16278100,
CC ECO:0000305}.
CC -!- TISSUE SPECIFICITY: Expressed by the venom gland.
CC {ECO:0000269|PubMed:16278100, ECO:0000305}.
CC -!- DOMAIN: The presence of a 'disulfide through disulfide knot'
CC structurally defines this protein as a knottin. {ECO:0000305}.
CC -!- MASS SPECTROMETRY: Mass=5088.4; Method=Electrospray;
CC Evidence={ECO:0000269|PubMed:16278100, ECO:0000305};
CC -!- SIMILARITY: Belongs to the neurotoxin 03 (Tx2) family. 06 subfamily.
CC {ECO:0000305}.
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DR AlphaFoldDB; P83904; -.
DR SMR; P83904; -.
DR ArachnoServer; AS000259; delta-ctenitoxin-Pr2d.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0017080; F:sodium channel regulator activity; IEA:UniProtKB-KW.
DR GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR InterPro; IPR035285; CNTX.
DR Pfam; PF17492; D_CNTX; 1.
PE 1: Evidence at protein level;
KW Direct protein sequencing; Disulfide bond; Ion channel impairing toxin;
KW Knottin; Neurotoxin; Secreted; Toxin;
KW Voltage-gated sodium channel impairing toxin.
FT CHAIN 1..47
FT /note="Delta-ctenitoxin-Pr2d"
FT /id="PRO_0000087630"
FT DISULFID 3..17
FT /evidence="ECO:0000305"
FT DISULFID 10..23
FT /evidence="ECO:0000305"
FT DISULFID 14..46
FT /evidence="ECO:0000305"
FT DISULFID 16..31
FT /evidence="ECO:0000305"
FT DISULFID 25..29
FT /evidence="ECO:0000305"
SQ SEQUENCE 47 AA; 5098 MW; 09710C9FE91A7C3C CRC64;
GTCAGQDKPC KETCDCCGER GQCVCEGPCI CRQGYFWIAA YKLGNCK