>sp|P17191|HBEAG_HPBDW External core antigen OS=Duck hepatitis B virus (isolate white Shanghai duck S31) OX=10440 GN=C PE=3 SV=2 MWNLRITPLSFGAACQGIFTSTLLLSALTVPLVCTIVYDSCLYMDINASRALANVYDLPD DFFPKIDDLVRDAKDALEPYWKSDSIKKHVLIATHFVDLIEDFWQTTQGMHEIAESLRAV IPPTTAPVPTGYLIQHEEAEEIPLGDLFKHQEERIVSFQPDYPITARIHAHLKAYAKINE ESLDRARRLLWWHYNCLLWGEANVTNYISRLRTWLSTPEKYRGRDAPTIEAITRPIQVAQ GGRKTSSGTRKPRGLEPRRRKVKTTFVYGRRRSKSRERRAPSPQRAGSPLPRSSSSHHRS PSPRK