C terminus, Chlamydomonas, Exosomes, glycoproteins, Hepatitis C virus, HIV, lipoprotein, mediate, morphogenesis, NATtrol, nonmotile, Panel, PCR, pH-dependent cell, PLC, polypeptides, pseudotyped retroviral particles, recombinant, Recombinant Proteins, retroviral, Ria Kits