Evidence 1
Activity
Activity
Neurotoxin
FUNCTION: Lethal neurotoxin. Selectively blocks tetrodotoxin-sensitive voltage-gated sodium channels (Nav). Does not affect tetrodotoxin-resistant voltage-gated sodium channels or calcium channels (By similarity). {ECO:0000250}.
Target
voltage-gated sodium channel (Nav)
voltage-gated calcium channel (Cav)
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
Lethal neurotoxin. Selectively blocks tetrodotoxin-sensitive voltage-gated sodium channels (Nav).
Mu-theraphotoxin-Hhn2j 1 (Mu-TRTX-Hhn2j) (Hainantoxin-III-2) (HNTX-III-2)
spider
Neurotoxin 10 (Hwtx-1) family, 15 (Hntx-3) subfamily
Evidence at transcript level
Amidation
Disulfide bond
Ion channel impairing toxin
Knottin
Neurotoxin
Presynaptic neurotoxin
Secreted
Signal
Toxin
Voltage-gated sodium channel impairing toxin
TISSUE SPECIFICITY: Expressed by the venom gland.