Molecular and General Genetics MGG

, Volume 258, Issue 4, pp 323–325

DNA analysis of temperate bacteriophage Aa/23 isolated from Actinobacillus actinomycetemcomitans

  • K. Willi
  • J. Meyer

DOI: 10.1007/s004380050737

Cite this article as:
Willi, K. & Meyer, J. Mol Gen Genet (1998) 258: 323. doi:10.1007/s004380050737


The DNA of the temperate bacteriophage Aaφ23 isolated from the oral bacterium Actinobacillus actinomycetemcomitans was examined structurally both in the phage head and in the prophage. The DNA in phage particles comprises 44 kb linear molecules with a terminal redundancy of 1.6 kb, which represent circular permutations. Thus, DNA is packaged into phage heads by the headful mechanism. The Aaφ23 prophage is integrated into the host chromosome.

Key words Temperate bacteriophage Aaφ23Linear phage DNATerminal redundancyCircular permutationIntegrated prophage

Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • K. Willi
    • 1
  • J. Meyer
    • 1
  1. 1.Institute of Preventive Dentistry and Oral Microbiology, Dental Center, University of Basel, Petersplatz 14, CH-4051 Basel, Switzerland Tel.: +41-61-267-26-00; Fax: +41-61-267-26-58CH