title: Sequencing and characterization of Pseudomonas aeruginosa phage JG004.
abstract: BACKGROUND
  Phages could be an important alternative to antibiotics, especially for treatment of multiresistant bacteria as e.g. Pseudomonas aeruginosa. For an effective use of bacteriophages as antimicrobial agents, it is important to understand phage biology but also genes of the bacterial host essential for phage infection.
  
  
  RESULTS
  We isolated and characterized a lytic Pseudomonas aeruginosa phage, named JG004, and sequenced its genome. Phage JG004 is a lipopolysaccharide specific broad-host-range phage of the Myoviridae phage family. The genome of phage JG004 encodes twelve tRNAs and is highly related to the PAK-P1 phage genome. To investigate phage biology and phage-host interactions, we used transposon mutagenesis of the P. aeruginosa host and identified P. aeruginosa genes, which are essential for phage infection. Analysis of the respective P. aeruginosa mutants revealed several characteristics, such as host receptor and possible spermidine-dependance of phage JG004.
  
  
  CONCLUSIONS
  Whole genome sequencing of phage JG004 in combination with identification of P. aeruginosa host genes essential for infection, allowed insights into JG004 biology, revealed possible resistance mechanisms of the host bacterium such as mutations in LPS and spermidine biosynthesis and can also be used to characterize unknown gene products in P. aeruginosa.
authors.affiliation: Institute of Microbiology, Technische Universität Braunschweig, Spielmannstr. 7, 38106 Braunschweig, Germany.
authors.forename: Julia
authors.initials: J
authors.lastname: Garbe
authors.forename: Boyke
authors.initials: B
authors.lastname: Bunk
authors.forename: Manfred
authors.initials: M
authors.lastname: Rohde
authors.forename: Max
authors.initials: M
authors.lastname: Schobert
mesh_terms: D001433:Bacteriolysis; D004279:DNA, Viral / Q000737:chemistry* / Q000235:genetics*; D016679:Genome, Viral; D006801:Humans; D008969:Molecular Sequence Data; D017900:Myoviridae / Q000235:genetics* / Q000302:isolation & purification / Q000648:ultrastructure*; D017105:Pseudomonas Phages / Q000235:genetics* / Q000302:isolation & purification / Q000648:ultrastructure*; D011550:Pseudomonas aeruginosa / Q000821:virology*; D017422:Sequence Analysis, DNA
chemical_list: D004279:DNA, Viral