>tr|K7W9D9|K7W9D9_HBV Middle surface protein (Fragment) OS=Hepatitis B virus OX=10407 GN=S PE=4 SV=1 MQWNSTTFHQALLDPRVRGLYFPAGGSSSGTVNPVPTTASPISSIFSRTGDPAPNMESTT SGFLGPLLVLQAGFFLLTRILTIPQSLDSWWTSLNFLGGAPTCPGQNSQSPTSNHS