and thus abolishes the ability of the respective sialoglycoconjugate to function as a receptor for BCoV.
As in the case of influenza viruses , the receptor - destroying enzyme of BCoV is believed to facilitate the spread of virus infection
These viruses resemble influenza C viruses because they share not only the receptor determinant , but also the presence of an acetylesterase that releases the 9-O - acetyl group from sialic acid and thus abolishes the ability of the respective sialoglycoconjugate to function as a receptor for BCoV.
As in the case of influenza viruses , the receptor - destroying enzyme of BCoV is believed to facilitate the spread of virus infection by removing receptor determinants from the surface of infected cells and by preventing the formation of virus aggregates .