>sp|Q8AY44|VKTH7_BUNCA Kunitz-type serine protease inhibitor homolog beta-bungarotoxin B2b chain OS=Bungarus candidus MSSGGLLLLLGLLTLWAELTPVSSRKRHPDCDKPPDTRICQTVVRAFYYKPSEKRCVQFR YGGCKGNGNHFKSDHLCRCECLEYR