Abstract
Klebsiella pneumoniae, a multidrug resistant bacterium that causes nosocomial infections including septicemia, pneumonia etc. Bacteriophages are potential antimicrobial agents for the treatment of antibiotic resistant bacteria. In this study, a novel bacteriophage IME184, was isolated from hospital sewage against clinical multi-drug resistant Klebsiella pneumoniae. Transmission electron microscopy and genomic characterization exhibited this phage belongs to the Molineuxvirinae genus, Autographiviridae family. Phage IME184 possessed a double-stranded DNA genome composed of 44,598 bp with a GC content of 50.3%. The phage genome encodes 57 open reading frames, out of 26 are hypothetical proteins while 31 had assigned putative functions. No tRNA, virulence related or antibiotic resistance genes were found in phage genome. Comparative genomic analysis showed that phage IME184 has 94% similarity with genomic sequence of Klebsiella phage K1-ULIP33 (MK380014.1). Multiplicity of infection, one step growth curve and host range of phage were also measured. According to findings, Phage IME184 is a promising biological agent that infects Klebsiella pneumoniae and can be used in future phage therapies.
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