The present invention provides antiviral proteins, peptides and conjugates,
as well as methods of obtaining these agents. The antiviral proteins,
peptides and conjugates of the present invention can be used alone or in
combination with other antiviral agents in compositions, such as
pharmaceutical compositions, to inhibit the infectivity, replication and
cytopathic effects of a virus, such as a retrovirus, in particular a human
immunodeficiency virus, specifically HIV-1 or HIV-2, in the treatment or
prevention of viral infection.