Adeno-Associated Viruses (AAV) are widely used gene-therapy vectors for both clinical\napplications and laboratory investigations. The titering of different AAV preparations is important\nfor quality control purposes, as well as in comparative studies. However, currently available methods\nare limited in their ability to detect various serotypes with sensitivity and convenience. Here, we took\nadvantage of a newly discovered AAV receptor protein with high affinity to multiple AAV serotypes,\nand developed an ELISA-like method named â??VIRELISAâ? (virus receptor-linked immunosorbent\nassay) by adopting fusion with a streptavidin-binding peptide (SBP). It was demonstrated that\noptimized VIRELISA assays exhibited satisfactory performance for the titering of AAV2â?¦..â?¦â?¦â?¦
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