>sp|B2KTG3|VKTH2_BUNFA Kunitz-type serine protease inhibitor homolog beta-bungarotoxin BF B2 chain OS=Bungarus fasciatus OX=8613 PE=2 SV=1
MSSGGLLLLLGLLTLWAELTPISSRERHPDCDKPPDTGRCGNNVRAFYYKPSTNKCVQFI
YGGCNANGNHFKSDHLCRCQCREND