AC PRU00677; DC Domain; TR PROSITE; PS51345; MYOTOXINS_2; 1; level=0 XX Names: Myotoxins family Function: Myotoxins are small basic peptides (42 to 45 residues) from the venom of rattlesnakes that cause severe muscle necrosis by a non-enzymatic mechanism. Myotoxins contain six cysteines involved in three disulfide bonds. XX case CC -!- FUNCTION: This toxin specifically modifies voltage-sensitive sodium CC channels, it exhibits analgesic activity and causes severe muscle CC necrosis by a non-enzymatic mechanism. Moreover, it actively interacts CC with lipid membranes. CC -!- SUBCELLULAR LOCATION: Secreted. end case CC -!- SIMILARITY: Belongs to the snake toxin myotoxin family. XX DR PROSITE; PS00459; MYOTOXINS_1; 0-1; trigger=no XX case GO GO:0019870; F:potassium channel inhibitor activity GO GO:0008200; F:ion channel inhibitor activity XX KW Secreted KW Ion channel impairing toxin KW Potassium channel impairing toxin KW Voltage-gated potassium channel impairing toxin KW Myotoxin KW Toxin end case case KW Disulfide bond end case XX FT From: PS51345 FT DISULFID 4..36 FT Tag: disulf; Condition: C-x*-C FT DISULFID 11..30 FT Tag: disulf; Condition: C-x*-C FT DISULFID 18..37 FT Tag: disulf; Condition: C-x*-C XX Chop: Nter=0; Cter=0; Size: 35-50; Related: None; Repeats: 1; Topology: Undefined; Example: O73799; Scope: Eukaryota; Metazoa; Squamata; Serpentes Comments: None XX # Revision 1.7 2021/06/03 //