Norovirus Binding to Ligands Beyond Histo-Blood Group Antigens

Norovirus Binding to Ligands Beyond Histo-Blood Group Antigens

Histo-blood group antigens (HBGAs) are commonly accepted as the cellular receptors for human norovirus. However, some human noroviruses have been found not to bind any HBGA ligand, suggesting potential additional co-factors. Some ligands have been found to bind noroviruses and have the potential to be additional cellular receptors/attachment factors for human norovirus or inhibitors of the HBGA...

Norovirus and histo-blood group antigens.

Norovirus (NoV), a member of the family Caliciviridae, is a major cause of acute water- and food-borne nonbacterial gastroenteritis and forms antigenically diverse groups of viruses. Human NoVs are divided into at least three genogroups, genogroups I (GI), GII, and GIV, which contain at least 15, 18, and 1 genotypes, respectively. Except for a few genotypes, all NoVs bind to histo-blood group a...

Norovirus Recognition Sites on Histo-Blood Group Antigens

Norovirus (NoV) is the major causative agent of acute viral gastroenteritis worldwide. Based on genetic analyses, human NoV strains have been classified into at least three genogroups: genogroup I (GI), GII, and GIV, which contain at least 15, 18, and 1 genotypes, respectively (Kageyama et al., 2004). Notably, these NoV genotypes are morphologically similar to one another but differ antigenical...

Norovirus Binding to Intestinal Epithelial Cells Is Independent of Histo-Blood Group Antigens

Human noroviruses (NoVs) are a major cause of non-bacterial gastroenteritis. Although histo-blood group antigens (HBGAs) have been implicated in the initial binding of NoV, the mechanism of that binding before internalization is not clear. To determine the involvement of NoVs and HBGAs in cell binding, we examined the localization of NoV virus-like particles (VLPs) and HBGAs in a human intestin...

Brief Review Binding activity of norovirus and sapovirus to histo-blood group antigens