Regular ArticleSequence Analysis of the Family of Penicillinase-Producing Plasmids of Neisseria gonorrhoeae
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Cited by (57)
Genus Neisseria
2022, Encyclopedia of Infection and ImmunityMolecular characteristics and antimicrobial susceptibility of penicillinase-producing Neisseria gonorrhoeae isolates in Fukuoka, Japan, 1996–2018
2021, Journal of Global Antimicrobial ResistanceCitation Excerpt :To date, eight plasmid vector types have been identified in N. gonorrhoeae and these are named after their places of origins. Of the eight plasmid types, Asian, African and Toronto/Rio plasmids are most frequent and are widespread [5–7]. PPNG strains commonly produce TEM-1 β-lactamase encoded by the blaTEM-1 allele.
High prevalence of TEM-135 expression from the Asian plasmid in penicillinase-producing Neisseria gonorrhoeae from Hangzhou, China
2019, International Journal of Antimicrobial AgentsCitation Excerpt :All 15 isolates contained polymorphisms in mtrR and porB that have previously been associated with β-lactam resistance, and none of the isolates contained a mosaic penA allele. Whole-plasmid sequence analysis for the 15 isolates showed >99% sequence identity with the previously published Asian and African plasmids [5] and, except for the M182T mutation, no differences were observed in blaTEM and its promoter region. These isolates were further analysed by qPCR for plasmid copy number and blaTEM gene expression.
Molecular epidemiology of penicillinase-producing Neisseria gonorrhoeae isolates in France
2017, Clinical Microbiology and InfectionCitation Excerpt :Of those carrying a mutation in the signal peptide (n = 8), seven were carried by an African plasmid and one by an Asian plasmid. Since the first description of gonococcal resistance to penicillins via the production of a TEM β-lactamase, both molecular studies [3,7] and surveillance network data have shown that the resistance frequencies can vary by country. According to ECDC, the rate of PPNG isolates varied from 2% to 31.6% in Europe in 2011 [23], and different studies have described a large range, from 1.4% in Japan [10] and 4.6% in England and Wales [14] to approximately 20% in Argentina [13] and 40% in China [12].
Antimicrobial resistance in Neisseria gonorrhoeae: history, molecular mechanisms and epidemiological aspects of an emerging global threat
2017, Brazilian Journal of MicrobiologyMultiplex bead suspension array for screening Neisseria gonorrhoeae antibiotic resistance genetic determinants in noncultured clinical samples
2013, Journal of Molecular DiagnosticsCitation Excerpt :The accuracy of the assay was determined by DNA bidirectional sequencing of PCR fragments amplified with primers indicated in Table 5. N. gonorrhoeae–specific chromosomal mutations and plasmid genes highly associated with PEN, CIP, ESC, TET, AZM, and SPT resistance and listed in Table 1 were included in the assay.11,12,17–44 PCR primers for 9 chromosomal N. gonorrhoeae genes were designed to target conserved sequences, which was especially important for highly variable genes such as penA and porB.
- 1
Current address: Laboratory Centre for Disease Control, Winnipeg, Canada R3E 3R2.
- 2
Current address: Bureau of Biologics, Health Canada, Ottawa, ON Canada K1A 0L2.
- 3
To whom correspondence should be addressed at Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, Canada K1H 8M5. Fax: (613) 562-5452. E-mail: [email protected].