Evidence 1
Activity
Activity
Neurotoxin
FUNCTION: Inhibits selectively tetrodotoxin-sensitive voltage-gated sodium channels (Nav). Does not act by binding to receptor site 3 to slow the inactivation kinetics of sodium currents. {ECO:0000269|PubMed:12727268}.
Target
voltage-gated sodium channel (Nav)
Source & Reference
NA
UniProtKB/Swiss-Prot Tox-Prot
Other
Cyriopagopus hainanus (Chinese bird spider) (Haplopelma hainanum)
Neurotoxin
Presynaptic neurotoxin
Ion channel impairing toxin
Voltage-gated sodium channel impairing toxin
Inhibits selectively tetrodotoxin-sensitive voltage-gated sodium channels (Nav). Does not act by binding to receptor site 3 to slow the inactivation kinetics of sodium currents..
Mu-theraphotoxin-Hhn1a (Mu-TRTX-Hhn1a) (Hainantoxin-5) (Hainantoxin-V) (HnTX-V)
spider
Neurotoxin 10 (Hwtx-1) family, 22 (Htx-4) subfamily
Evidence at protein level
Direct protein sequencing
Disulfide bond
Ion channel impairing toxin
Knottin
Neurotoxin
Presynaptic neurotoxin
Secreted
Toxin
Voltage-gated sodium channel impairing toxin
TISSUE SPECIFICITY: Expressed by the venom gland.