Tau-scoloptoxin(04)-Ssm1b

UniProtKB accession: A0A0N7CSQ4

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Polymer Entities matching query 9

Go to UniProtKB: A0A0N7CSQ4

UniProtKB description: Extremely potent agonist and potentiator of TRPV1 (EC(50)=470-521.5 nM (mouse)) (PubMed:26420335, PubMed:32097697). It strongly promotes the heat activation process by downshifting the activation threshold temperature (PubMed:26420335). It preferably binds to the activated channel and promotes its opening (PubMed:26420335). Holding the channel closed by cooling prevents binding of this toxin, leaving it ineffective (PubMed:26420335). The toxin binds to the charge-rich outer pore region of the channel where it directly interacts with the pore helix and turret, two adjacent structural elements known to be critical for activation gating of TRPV1 (PubMed:26420335). In comparison with Sm1b, induces a TRPV1 desensitization with slower kinetics (20 seconds) (PubMed:32097697). In vivo, induces pain in mice after intraplantar injection (PubMed:26420335).

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