NDLI: Genomic Analysis of Pseudomonas putida Phage tf with Localized Single-Strand DNA Interruptions

Content Provider	PubMed Central
Author	Glukhov, Anatoly S. Krutilina, Antonina I. Shlyapnikov, Michael G. Konstantin, Severinov Daria, Lavysh Kochetkov, Vladimir V. Mcgrath, John W. Colin, De Leeuwe Shaburova, Olga V. Krylov, Victor N. Akulenko, Natalia V. Kulakov, Leonid A.
Editor	Poteete, Anthony R.
Copyright Year	2012
Abstract	The complete sequence of the 46,267 bp genome of the lytic bacteriophage tf specific to Pseudomonas putida PpG1 has been determined. The phage genome has two sets of convergently transcribed genes and 186 bp long direct terminal repeats. The overall genomic architecture of the tf phage is similar to that of the previously described Pseudomonas aeruginosa phages PaP3, LUZ24 and phiMR299-2, and 39 out of the 72 products of predicted tf open reading frames have orthologs in these phages. Accordingly, tf was classified as belonging to the LUZ24-like bacteriophage group. However, taking into account very low homology levels between tf DNA and that of the other phages, tf should be considered as an evolutionary divergent member of the group. Two distinguishing features not reported for other members of the group were found in the tf genome. Firstly, a unique end structure – a blunt right end and a 4-nucleotide 3′-protruding left end – was observed. Secondly, 14 single-chain interruptions (nicks) were found in the top strand of the tf DNA. All nicks were mapped within a consensus sequence 5′-TACT/RTGMC-3′. Two nicks were analyzed in detail and were shown to be present in more than 90% of the phage population. Although localized nicks were previously found only in the DNA of T5-like and phiKMV-like phages, it seems increasingly likely that this enigmatic structural feature is common to various other bacteriophages.
Related Links	http://dx.doi.org/10.1371/journal.pone.0051163
Starting Page	51163
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	12
Volume Number	7
Language	English
Publisher	Public Library of Science
Publisher Date	2012-12-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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