>sp|Q9W728|VKTH3_BUNMU Kunitz-type serine protease inhibitor homolog beta-bungarotoxin B3 chain OS=Bungarus multicinctus MSSGGLLLLLGLLTLCAELIPVSSRQRHRDCDKPPDKGNCGPVRRAFYYDTRLKTCKAFQ YRGCNGNGNHFKSDHLCRCECLEYS