St. Petersburg Polytechnic University Journal: Physics and Mathematics Научно-технические ведомости СПбГПУ. Физико-математические науки 2304-9782, 2618-8686, 2405-7223 16 Non-canonical RNA-polymerases of ϕKZ-like phages Неканонические РНК-полимеразы гигантских бактериофагов типа ϕKZ 0000-0003-2083-3643 Yakunina Maria yakuninam@nanobio.spbstu.ru Vorontsova Darya Minakhin Leonid Peter the Great St. Petersburg Polytechnic University 10 03 2013 1 165 120 127

Nine ϕKZ-like bacteriophages, encoding their own RNA polymerase (RNAP), belonging to the class multi-subunit RNAP, were found in a database of complete genomes. Analysis of protein sequences and genetic environment of RNAP genes have suggested the presence of two independent functional phage RNAP, “virion” and “non-virion”.

 transcription regulation non-canonical rna-polymerases development of ϕkz-like phages temporal genes classes