| Literature DB >> 160544 |
S A Langeveld, A D van Mansfeld, J M de Winter, P J Weisbeek.
Abstract
The purified A protein and A* protein of bacteriophage phi X174 have been tested for endonuclease activity on single stranded viral phi X174 DNA. The A protein (55.000 daltons) nicks single-stranded DNA in the same way and at the same place as it does superhelical RFI DNA, at the origin of DNA replication. The A* protein (37.000 daltons) can cleave the single-stranded viral DNA at many different sites. It has however a strong preference for the origin of replication. Both proteins generate 3'OH ends and blocked 5' termini at the nick site.Entities:
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Year: 1979 PMID: 160544 PMCID: PMC342378 DOI: 10.1093/nar/7.8.2177
Source DB: PubMed Journal: Nucleic Acids Res ISSN: 0305-1048 Impact factor: 16.971