Evidence 1
Activity
Activity
Neurotoxin
FUNCTION: Reversibly blocks N-type calcium channels (Cav2.2/CACNA1B) in rat dorsal root ganglion cells (IC(50)=40 nM). Elicits no toxic symptoms in either vertebrates or invertebrates during a period of 48 hours post-injection, when it was assayed in vivo by direct injection into mice and cockroaches. {ECO:0000269|PubMed:16439354}.
Target
voltage-gated calcium channel (Cav)
Source & Reference
NA
UniProtKB/Swiss-Prot Tox-Prot
Other
Cyriopagopus schmidti (Chinese bird spider) (Haplopelma schmidti)
Neurotoxin
Calcium channel impairing toxin
Ion channel impairing toxin
Voltage-gated calcium channel impairing toxin
Reversibly blocks N-type calcium channels (Cav2.2/CACNA1B) in rat dorsal root ganglion cells (IC(50)=40 nM). Elicits no toxic symptoms in either vertebrates or invertebrates during a period of 48 hours post-injection, when it was assayed in vivo by direct injection into mice and cockroaches..
Omega-theraphotoxin-Hs1a (Omega-TRTX-Hs1a) (Huwentoxin-10) (Huwentoxin-X) (HwTx-X)
spider
Neurotoxin 36 family, 02 subfamily
Evidence at protein level
3D-structure
Calcium channel impairing toxin
Direct protein sequencing
Disulfide bond
Ion channel impairing toxin
Knottin
Neurotoxin
Secreted
Signal
Toxin
Voltage-gated calcium channel impairing toxin
TISSUE SPECIFICITY: Expressed by the venom gland. {ECO:0000305|PubMed:16439354}.