1887

Abstract

SUMMARY

The genome of a 22 nm icosahedral phage which infects some avian strains recovered from domestic ducks has been characterized as a ss circular DNA molecule of about 4850 bases. The replicative form of this genome was isolated from purified chlamydial organisms. A restriction endonuclease cleavage site map of the genome was constructed from dsDNA synthesized from ss phage DNA and RI fragments were then cloned into pUC9. The phage genome was detected only by Southern blot hybridization in which was productively infected with phage; no evidence was found for the integration of phage DNA into the chlamydial chromosome. Three viral polypeptides, of approximate values 75K, 30K and 16.5K were identified when phage was analysed by SDS–PAGE. This virus, which we have designated Chpl, is either an aberrant member of the or the first member of a new bacteriophage family.

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1989-06-01
2022-12-07
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