Evidence 1
Activity
Activity
Neurotoxin
FUNCTION: Selectively slows channel inactivation of mammalian Nav1.1/SCN1A, Nav1.3/SCN3A, and Nav1.6/SCN8A and shows higher affinity for insect Nav1/para channels (site 3). Induces tonic repetitive firing of nerve impulses in insect neurons accompanied by plateau potentials. {ECO:0000269|PubMed:12860384, ECO:0000269|PubMed:19592486}.
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
Selectively slows channel inactivation of mammalian Nav1.1/SCN1A, Nav1.3/SCN3A, and Nav1.6/SCN8A and shows higher affinity for insect Nav1/para channels (site 3). Induces tonic repetitive firing of nerve impulses in insect neurons accompanied by plateau potentials..
Delta-hexatoxin-Mg1a (Delta-HXTX-Mg1a) (Neurotoxin magi-4)
spider
Neurotoxin 06 (delta-actx) family
Evidence at protein level
3D-structure
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}.