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  • Title: Identification of Acinetobacter clinical isolates by polymerase chain reaction analysis of 16S-23S ribosomal ribonucleic acid internal transcribed spacer.
    Author: Sarhan MA, Osman AA, Haimour WO, Mohamed MN, Taha TH, Abdalla NM.
    Journal: Indian J Med Microbiol; 2014; 32(2):143-7. PubMed ID: 24713899.
    Abstract:
    BACKGROUND: The genus Acinetobacter is a diverse group of Gram-negative bacteria involve at least 33 species using the molecular methods. Although the genus Acinetobacter comprises a number of definite bacterial species, some of these species are of clinical importance. Therefore, it is of vital importance to use a method which is able to reliably and efficiently differentiate the numerous Acinetobacter species. OBJECTIVES: This study aims to identify Acinetobacter of clinical isolates from Assir region to the species level by 16S-23S intergenic spacers internal transcribed spacer (ITS) of ribosomal ribonucleic acid (rRNA). MATERIALS AND METHODS: Deoxyribonucleic acid extraction, polymerase chain reaction amplification of 16S-23S intergenic spacer sequences (ITS) was performed using the bacterium-specific universal primers. RESULTS: Based on the 16S-23S intergenic spacers (ITS) of rRNA sequences, all isolates tested were identified as Acinetobacter baumannii. The isolates shared a common ancestral lineage with the prototypes A. baumannii U60279 and U60280 with 99% sequence similarities. CONCLUSION: These findings confirmed 16S-23S rRNA ITS for the identification of A. baumannii of different genotypes among patients.
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