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Characterization of vB_ApiM_fHyAci03, a novel lytic bacteriophage that infects clinical Acinetobacter strains
Elsi Pulkkinen1,2, Anu Wicklund1,2, Joseph M O Oduor2,3
1Division of Clinical Microbiology, HUSLAB, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
Abstract:
We present here the isolation and characterization of Acinetobacter pittii phage vB_ApiM_fHyAci03 (fHyAci03), which belongs to the family Myoviridae. The fHyAci03 genome was found to be 165,975 bp in length and predicted to contain 255 genes. While the whole genome was 92.4% identical to Acinetobacter baumannii phage KARL-1, phylogenetic analysis based on phage long distal tail fiber amino acid sequences assigned fHyAci03 and KARL-1 to different subclusters, reflecting their different host species. Together with phylogenetic analysis, genome comparisons indicated that fHyAci03 is a novel member of the subfamily Tevenvirinae. Host range experiments revealed that fHyAci03 could infect two clinical strains of Acinetobacter nosocomialis and six clinical strains of A. pittii. Thus, fHyAci03 is a novel lytic phage that infects clinical Acinetobacter strains and represents a potential new candidate to be used in phage therapy.
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