NOVEL SCORPION TOXIN ANALOGUE AND METHOD FOR TREATING AUTOIMMUNE DISEASES

摘要

A novel peptide analogue of the Heterometrus spinnifer toxin HsTX1 is disclosed along with its application as, for example, a therapeutic agent for treating an autoimmune disease such as multiple sclerosis (MS) or rheumatoid arthritis (RA). The analogue comprises a peptide with an amino acid substitution at amino acid position 14 of the wild-type (WT) peptide sequence (or a position corresponding to position 14 of the WT peptide sequence). The analogue exhibits selectivity for Kv1.3 over Kv1.1 and other potassium channels relative to the WT peptide.