Open Access

Identification of antibiotic resistance genes in the multidrug-resistant Acinetobacter baumannii strain, MDR-SHH02, using whole-genome sequencing

  • Authors:
    • Hualiang Wang
    • Jinghua Wang
    • Peijuan Yu
    • Ping Ge
    • Yanqun Jiang
    • Rong Xu
    • Rong Chen
    • Xuejie Liu
  • View Affiliations

  • Published online on: December 30, 2016     https://doi.org/10.3892/ijmm.2016.2844
  • Pages: 364-372
  • Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

This study aimed to investigate antibiotic resistance genes in the multidrug-resistant (MDR) Acinetobacter baumannii (A. baumanii) strain, MDR-SHH02, using whole‑genome sequencing (WGS). The antibiotic resistance of MDR-SHH02 isolated from a patient with breast cancer to 19 types of antibiotics was determined using the Kirby‑Bauer method. WGS of MDR-SHH02 was then performed. Following quality control and transcriptome assembly, functional annotation of genes was conducted, and the phylogenetic tree of MDR-SHH02, along with another 5 A. baumanii species and 2 Acinetobacter species, was constructed using PHYLIP 3.695 and FigTree v1.4.2. Furthermore, pathogenicity islands (PAIs) were predicted by the pathogenicity island database. Potential antibiotic resistance genes in MDR-SHH02 were predicted based on the information in the Antibiotic Resistance Genes Database (ARDB). MDR-SHH02 was found to be resistant to all of the tested antibiotics. The total draft genome length of MDR-SHH02 was 4,003,808 bp. There were 74.25% of coding sequences to be annotated into 21 of the Clusters of Orthologous Groups (COGs) of protein terms, such as ‘transcription’ and ‘amino acid transport and metabolism’. Furthermore, there were 45 PAIs homologous to the sequence MDRSHH02000806. Additionally, a total of 12 gene sequences in MDR-SHH02 were highly similar to the sequences of antibiotic resistance genes in ARDB, including genes encoding aminoglycoside‑modifying enzymes [e.g., aac(3)-Ia, ant(2'')‑Ia, aph33ib and aph(3')-Ia], β-lactamase genes (bl2b_tem and bl2b_tem1), sulfonamide-resistant dihydropteroate synthase genes (sul1 and sul2), catb3 and tetb. These results suggest that numerous genes mediate resistance to various antibiotics in MDR-SHH02, and provide a clinical guidance for the personalized therapy of A. baumannii-infected patients.
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February-2017
Volume 39 Issue 2

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Wang H, Wang J, Yu P, Ge P, Jiang Y, Xu R, Chen R and Liu X: Identification of antibiotic resistance genes in the multidrug-resistant Acinetobacter baumannii strain, MDR-SHH02, using whole-genome sequencing. Int J Mol Med 39: 364-372, 2017.
APA
Wang, H., Wang, J., Yu, P., Ge, P., Jiang, Y., Xu, R. ... Liu, X. (2017). Identification of antibiotic resistance genes in the multidrug-resistant Acinetobacter baumannii strain, MDR-SHH02, using whole-genome sequencing. International Journal of Molecular Medicine, 39, 364-372. https://doi.org/10.3892/ijmm.2016.2844
MLA
Wang, H., Wang, J., Yu, P., Ge, P., Jiang, Y., Xu, R., Chen, R., Liu, X."Identification of antibiotic resistance genes in the multidrug-resistant Acinetobacter baumannii strain, MDR-SHH02, using whole-genome sequencing". International Journal of Molecular Medicine 39.2 (2017): 364-372.
Chicago
Wang, H., Wang, J., Yu, P., Ge, P., Jiang, Y., Xu, R., Chen, R., Liu, X."Identification of antibiotic resistance genes in the multidrug-resistant Acinetobacter baumannii strain, MDR-SHH02, using whole-genome sequencing". International Journal of Molecular Medicine 39, no. 2 (2017): 364-372. https://doi.org/10.3892/ijmm.2016.2844