Phrixotoxin-1

OC1=CC=C(C[C@@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@@H](CC2=CNC3=CC=CC=C23)C(N[C@H]4[C@@H](C)O)=O)=O)CCSC)=O)CC5=CNC6=CC=CC=C56)=O)CCCCN)=O)CCC(N)=O)=O)CSSC[C@H](NC7=O)C(N[C@H](C(NCC(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H]8CC9=CNC%10=CC=CC=C9%10)=O)CC(C)C)=O)CCCNC(N)=N)=O)CSSC[C@@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H]7CSSC[C@H](NC8=O)C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@@H]([C@H](CC)C)C(N)=O)=O)[C@H](CC)C)=O)CCCCN)=O)CCCCN)=O)=O)CCCCN)=O)CCCNC(N)=N)=O)C)=O)CO)=O)CC(O)=O)=O)NC4=O)=O)C(C)C)=O)CC(C)C)=O)=O)CCC(O)=O)=O)=O)N)C=C1

[1]Benjamin Chagot, et al. Solution structure of Phrixotoxin 1, a specific peptide inhibitor of Kv4 potassium channels from the venom of the theraphosid spider Phrixotrichus auratus. Protein Sci. 2004 May;13 (5) :1197-208.|[2]Grit Schaarschmidt, et al. Characterization of Voltage-Gated Potassium Channels in Human Neural Progenitor Cells. PLoS One. 2009 Jul 8;4 (7) :e6168.|[3]Ryota Imai, et al. Excitability of oxytocin neurons in paraventricular nucleus is regulated by voltage-gated potassium channels Kv4.2 and Kv4.3. Biosci Biotechnol Biochem. 2019 Feb;83 (2) :202-211.