“…In addition to these endonuclease activities probably coded for by the host genome, an endonuclease specific for double-stranded DNA has been described in association with the penton subunit of Ad 2 (4,5). Marusyk et Abbreviation used: Ad, adenovirus, TCA, trichloroacetic acid; d*G denotes d32P G. C) Information Retrieval Limited 1 Falconberg Court London Wl V 5FG England al (6) and Cajean-Feroldi et al (7) confirmed and extended the observations that the pentons of adenovirus types 2, 3, 5, 7, 9, 12, 15 and 16 were associated with an endonuclease. Under the conditions used by Marusyk et al (6), the penton-associated endonuclease caused predominantly single-strand scissions in the DNA substrate.…”