A pseudo-plaque method for infectious particle assay and clonal isolation of adeno-associated virus

Daniel A J Mitchell, Thomas F. Lerch, Joan T. Hare, Michael Chapman

Research output: Contribution to journalArticle

4 Scopus citations


A colorimetric method has been developed for the detection of adeno-associated virus (AAV) infectious centers in cell culture monolayers. Due to its non-cytopathic nature, AAV has not been amenable to the traditional plaque assay, involving an agar overlay and cellular stains. As a result, an alternate method was required. The pseudo-plaque assay is based on enzyme-catalyzed color development after a fixed cell monolayer is probed with anti-AAV monoclonal antibodies. In spite of chemical fixation, expected to damage the viral genomes and particles, infectious particles can be recovered and amplified for the propagation of viral clones.

Original languageEnglish (US)
Pages (from-to)9-15
Number of pages7
JournalJournal of Virological Methods
Issue number1-2
Publication statusPublished - Dec 2010



  • AAV
  • Adeno-associated virus
  • Assay
  • Plaque

ASJC Scopus subject areas

  • Virology

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