Title: Myoviridae bacteriophages of Pseudomonas aeruginosa: a long and complex evolutionary pathway
Authors: Krylov, V ×
Pleteneva, E
Bourkaltseva, M
Shaburova, O
Volckaert, Guido
Sykilinda, N
Kurochkina, L
Mesyanzhinov, V #
Issue Date: May-2003
Publisher: Elsevier science bv
Series Title: Research in microbiology vol:154 issue:4 pages:269-275
Abstract: Recently we have accomplished the entire DNA sequence of bacteriophage phiKZ, a giant virus infecting Pseudomonas aeruginosa. The 280 334-bp of phiKZ genome is a linear, circularly permutated and terminally redundant, AT-rich dsDNA molecule that contains no sites for NotI, PstI, SacI, SmaI, XhoI and XmaIII endonucleases. Limited homology to other bacteriophages on the DNA and protein levels indicated that phiKZ represents a distinct branch of the Myoviridae family. In this work, we analyzed a group of six P. aeruginosa phages (Lin68, Lin21, PTB80, NN, EL, and RU), which are morphologically similar to phiKZ, have similar genome size and low G + C content. All phages have a broad host range among R aeruginosa strains, and they are resistant to the inhibitory action of many P aeruginosa plasmids. The analysis of the genomic DNA by restriction enzymes and DNA-DNA hybridization shows that phages are representative of three phiKZ-Iike species: phiKZ-type (phiKZ, Lin2l, NN and PTB80), EL-type (EL and RU) and Lin68 which has a shorter tail than other phages. Except for related phages EL and RU, all phiKZ-Iike phages have identical N-terminal amino acid sequences of the major capsid protein. Random genome sequencing shows that the EL and RU phages have no homology to the phiKZ-Iike phages on DNA level. We propose that the ( KZ, Lin2l, NN, PTB80 and Lin68 phages can be included in a new ( KZ genus, and that the EL and RU phages belong to a separate genus within the Myoviridae family. Based on the resistance to many restriction enzymes and the transduction ability, there are indications that over the long pathway of evolution, the phiKZ-Iike phages probably inherited the capacity to infect different bacterial species. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
ISSN: 0923-2508
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Gene Technology (-)
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science