Academic Journal
Sequence, genome organization, annotation and proteomics of the thermophilic, 47.7-kb Geobacillus stearothermophilus bacteriophage TP-84 and its classification in the new Tp84virus genus.
| العنوان: | Sequence, genome organization, annotation and proteomics of the thermophilic, 47.7-kb Geobacillus stearothermophilus bacteriophage TP-84 and its classification in the new Tp84virus genus. |
|---|---|
| المؤلفون: | Piotr M Skowron, Andrew M Kropinski, Joanna Zebrowska, Lukasz Janus, Kasjan Szemiako, Edyta Czajkowska, Natalia Maciejewska, Malgorzata Skowron, Joanna Łoś, Marcin Łoś, Agnieszka Zylicz-Stachula |
| المصدر: | PLoS ONE, Vol 13, Iss 4, p e0195449 (2018) |
| بيانات النشر: | Public Library of Science (PLoS) |
| سنة النشر: | 2018 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | Bacteriophage TP-84 is a well-characterized bacteriophage of historical interest. It is a member of the Siphoviridae, and infects a number of thermophilic Geobacillus (Bacillus) stearothermophilus strains. Its' 47.7-kbp double-stranded DNA genome revealed the presence of 81 coding sequences (CDSs) coding for polypeptides of 4 kDa or larger. Interestingly, all CDSs are oriented in the same direction, pointing to a dominant transcription direction of one DNA strand. Based on a homology search, a hypothetical function could be assigned to 31 CDSs. No RNA or DNA polymerase-coding genes were found on the bacteriophage genome indicating that TP-84 relies on the host's transcriptional and replication enzymes. The TP84 genome is tightly packed with CDSs, typically spaced by several-to-tens of bp or often overlapping. The genome contains five putative promoter-like sequences showing similarity to the host promoter consensus sequence and allowing for a 2-bp mismatch. In addition, ten putative rho-independent terminators were detected. Because the genome sequence shows essentially no similarity to any previously characterised bacteriophage, TP-84 should be considered a new species in an undefined genus within the Siphoviridae family. Thus a taxonomic proposal of a new Tp84virus genus has been accepted by the International Committee on Taxonomy of Viruses. The bioinformatics genome analysis was verified by confirmation of 33 TP-84 proteins, which included: a) cloning of a selected CDS in Escherichia coli, coding for a DNA single-stranded binding protein (SSB; gene TP84_63), b) purification and functional assays of the recombinant TP-84 SSB, which has been shown to improve PCR reactions, c) mass spectrometric (MS) analysis of TP-84 bacteriophage capsid proteins, d) purification of TP-84 endolysin activity, e) MS analysis of the host cells from infection time course. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1932-6203 |
| Relation: | http://europepmc.org/articles/PMC5889276?pdf=render; https://doaj.org/toc/1932-6203; https://doaj.org/article/19f79aee50ee498ca07d3bb3af4c6d6b |
| DOI: | 10.1371/journal.pone.0195449 |
| الاتاحة: | https://doi.org/10.1371/journal.pone.0195449 https://doaj.org/article/19f79aee50ee498ca07d3bb3af4c6d6b |
| رقم الانضمام: | edsbas.E894D20D |
| قاعدة البيانات: | BASE |
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