>sp|Q0PL65|VKTH7_BUNMU Kunitz-type serine protease inhibitor homolog beta-bungarotoxin B5-B chain OS=Bungarus multicinctus OX=8616 PE=2 SV=1 RQRHPDCDKPPDTKRCTGHNPAFYYNPRRKNCERFSYGGCGGNGNHFKTKQLCHCHCHEN D