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Conserved Oprf As a Selective Immunogen Against Pseudomonas Aeruginosa



Moghaddam EK1 ; Owlia P2 ; Jahangiri A3 ; Rasooli I4 ; Rahbar MR5 ; Aghajani M6
Authors
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Authors Affiliations
  1. 1. Dept. of Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
  2. 2. Molecular Microbiology Research Center, Faculty of Medicine, Shahed University, Tehran, Iran
  3. 3. Applied Microbiology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
  4. 4. Dept. of Biology, Faculty of Basic Sciences, Shahed University, Tehran, Iran
  5. 5. Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
  6. 6. Dept. of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran

Source: Iranian Journal of Pathology Published:2017

Abstract

Background & Objectives: Due to the importance of Pseudomonas aeruginosa in severe inpatient infections and high mortality, the need for an efficient vaccine against these bacteria is increasing. In this regard, the general outer membrane porin of the most problematic microorganism P. aeruginosa, outer membrane protein F (OprF), is a good vaccine candidate. Methods:The databank of NCBI was used to retrieve protein sequences recorded for OprF in P. aeruginosa.The current study aimed at investigating the conservation of the OprF in 150 reference sequences, clinical, and environmental strains of P. aeruginosa from different countries via bioinformatic tools.T-COFFEE and PRALINE software were used for alignment. Results: Of these, 134 strains were isolated from clinical specimens and other strains from environmental samples. Evaluation of alignment by the mentioned software clearly showed that this protein was conserved. Antigenicity and grand average of hydropathicity were favorable. Conclusion: Conservation of OprF in all pathogenic and environmental strains of P. aeruginosa indicated that it can be considered as a good immunogen; however, the protectivity of OprF should be validated experimentally. © 2017, IRANIAN JOURNAL OF PATHOLOGY.
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