Specific molecular components of the cell capable of recognizing and interacting with a virus, and which, after binding it, are capable of generating some signal that initiates the chain of events leading to the biological response.

A surface protein on a cell that interacts with a virus thus initiating a chain of events leading to the internalization of the virus or the viral genetic material.

Protein, carbohydrate, or lipid factors on the surface of a susceptible cell that facilitate the binding of a virus to the entry receptor.

Synonyms: Viral Entry Receptor, Receptor, Viral Entry, Virus Attachment Factor, Receptor, Virus Entry, Attachment Factors, Virus, Attachment Receptors, Virus, Receptors, Virus Entry, Viral Entry Receptors, Virus Entry Receptors, Entry Receptors, Virus, Entry Receptors, Viral, Entry Receptor, Virus, Receptors, Virus, Receptor, Virus, Receptors, Viral Entry, Virus Attachment Factors, Virus Attachment Receptor, Receptor, Virus Attachment, Virus Attachment Receptors, Virus Entry Receptor, Attachment Factor, Virus, Virus Receptor, Receptors, Virus Attachment, Attachment Receptor, Virus, Entry Receptor, Viral, 0, Virus Receptors