Evidence 1
Activity
Activity
Neurotoxin
FUNCTION: Insecticidal neurotoxin. Shows competition for site 3 of insect voltage-gated sodium channels (Nav). Induces flaccid paralysis when injected into lepidopteran larvae. Is not toxic to mice when injected intracranially at 20 pmol/g. {ECO:0000269|PubMed:12860384}.
Target
voltage-gated sodium channel (Nav)
proton-gated sodium channel / ASIC
Source & Reference
NA
UniProtKB/Swiss-Prot Tox-Prot
Other
Macrothele gigas (Japanese funnel web spider)
Neurotoxin
Ion channel impairing toxin
Voltage-gated sodium channel impairing toxin
Insecticidal neurotoxin. Shows competition for site 3 of insect voltage-gated sodium channels (Nav).
Mu-hexatoxin-Mg1a (Mu-HXTX-Mg1a) (Neurotoxin magi-2)
spider
Neurotoxin 14 (magi-1) family, 09 (magi-1) subfamily
Evidence at protein level
Amidation
Cleavage on pair of basic residues
Direct protein sequencing
Disulfide bond
Ion channel impairing toxin
Knottin
Neurotoxin
Secreted
Signal
Toxin
Voltage-gated sodium channel impairing toxin
TISSUE SPECIFICITY: Expressed by the venom gland. {ECO:0000305|PubMed:12860384}.