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Characterization of TB40-ANCHOR3 viruses. Viral particles derived from the TB40-ANCHOR3 HCMV BAC contain DNA and OR3-GFP proteins and stain for pp28 tegument proteins (a) and for gB envelope proteins (b). They likely correspond to mature viruses with OR proteins bound to the encapsidated genomes. The images were acquired with a wide-field Zeiss Axiovert Observer Z1 with a 1.4-NA 63× objective.
