Plays a role in the inhibition of host antibody-mediated neutralization without blocking viral cell entry.; Forms an icosahedral capsid with a T=1 symmetry and a 34 nm diameter. The capsid is composed of 60 copies linked to each other. Binds to the 5' end of the genomic RNA to mediate genome encapsidation. Binds to heparin surface proteoglycans (HSPGs) to mediate viral entry. Additionally, the interactions with host ASGR1 and ASGR2 facilitate viral infection of hepatocytes. Hepatitis E virus genotype 1 (HEV-1) Secreted protein ORF2 (His) is expressed in Baculovirus insect cells with N-10xHis tag. The predicted molecular weight is 71.3 kDa and the accession number is Q68985.