Peptide sequence: IDHAKVRKHQ RKFLQAIHQL RSVKMEQRKL NDQANTLVDL AKTQNIMYDM Sequence homology: Cow: 93%; Dog: 93%; Guinea Pig: 93%; Horse: 93%; Human: 100%; Mouse: 93%; Rabbit: 93%; Rat: 93%; Yeast: 100%; Zebrafish: 93%. Action potentials in vertebrate neur