Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid

ABSTRACT Dissemination of blaNDM, which is carried on the IncX3 plasmid, among Enterobacterales has been reported worldwide. In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Tsukasa Ariyoshi [verfasserIn] Kotaro Aoki [verfasserIn] Hiroaki Kubota [verfasserIn] Kenji Sadamasu [verfasserIn] Yoshikazu Ishii [verfasserIn] Kazuhiro Tateda [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	carbapenem-resistant Enterobacterales IncX3 plasmid blaNDM-16b whole-genome sequencing comparative analysis

Übergeordnetes Werk:	In: Microbiology Spectrum - American Society for Microbiology, 2022, 10(2022), 4
Übergeordnetes Werk:	volume:10 ; year:2022 ; number:4

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1128/spectrum.01449-22

Katalog-ID:	DOAJ030587980

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245	1	0	\|a Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid
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520			\|a ABSTRACT Dissemination of blaNDM, which is carried on the IncX3 plasmid, among Enterobacterales has been reported worldwide. In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future.
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allfields	10.1128/spectrum.01449-22 doi (DE-627)DOAJ030587980 (DE-599)DOAJd335b0c692b5484eaee4e15b2ab4c4f6 DE-627 ger DE-627 rakwb eng QR1-502 Tsukasa Ariyoshi verfasserin aut Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier ABSTRACT Dissemination of blaNDM, which is carried on the IncX3 plasmid, among Enterobacterales has been reported worldwide. In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future. carbapenem-resistant Enterobacterales IncX3 plasmid blaNDM-16b whole-genome sequencing comparative analysis Microbiology Kotaro Aoki verfasserin aut Hiroaki Kubota verfasserin aut Kenji Sadamasu verfasserin aut Yoshikazu Ishii verfasserin aut Kazuhiro Tateda verfasserin aut In Microbiology Spectrum American Society for Microbiology, 2022 10(2022), 4 (DE-627)816693293 (DE-600)2807133-5 21650497 nnns volume:10 year:2022 number:4 https://doi.org/10.1128/spectrum.01449-22 kostenfrei https://doaj.org/article/d335b0c692b5484eaee4e15b2ab4c4f6 kostenfrei https://journals.asm.org/doi/10.1128/spectrum.01449-22 kostenfrei https://doaj.org/toc/2165-0497 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_252 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2022 4
spelling	10.1128/spectrum.01449-22 doi (DE-627)DOAJ030587980 (DE-599)DOAJd335b0c692b5484eaee4e15b2ab4c4f6 DE-627 ger DE-627 rakwb eng QR1-502 Tsukasa Ariyoshi verfasserin aut Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier ABSTRACT Dissemination of blaNDM, which is carried on the IncX3 plasmid, among Enterobacterales has been reported worldwide. In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future. carbapenem-resistant Enterobacterales IncX3 plasmid blaNDM-16b whole-genome sequencing comparative analysis Microbiology Kotaro Aoki verfasserin aut Hiroaki Kubota verfasserin aut Kenji Sadamasu verfasserin aut Yoshikazu Ishii verfasserin aut Kazuhiro Tateda verfasserin aut In Microbiology Spectrum American Society for Microbiology, 2022 10(2022), 4 (DE-627)816693293 (DE-600)2807133-5 21650497 nnns volume:10 year:2022 number:4 https://doi.org/10.1128/spectrum.01449-22 kostenfrei https://doaj.org/article/d335b0c692b5484eaee4e15b2ab4c4f6 kostenfrei https://journals.asm.org/doi/10.1128/spectrum.01449-22 kostenfrei https://doaj.org/toc/2165-0497 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_252 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2022 4
allfields_unstemmed	10.1128/spectrum.01449-22 doi (DE-627)DOAJ030587980 (DE-599)DOAJd335b0c692b5484eaee4e15b2ab4c4f6 DE-627 ger DE-627 rakwb eng QR1-502 Tsukasa Ariyoshi verfasserin aut Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier ABSTRACT Dissemination of blaNDM, which is carried on the IncX3 plasmid, among Enterobacterales has been reported worldwide. In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future. carbapenem-resistant Enterobacterales IncX3 plasmid blaNDM-16b whole-genome sequencing comparative analysis Microbiology Kotaro Aoki verfasserin aut Hiroaki Kubota verfasserin aut Kenji Sadamasu verfasserin aut Yoshikazu Ishii verfasserin aut Kazuhiro Tateda verfasserin aut In Microbiology Spectrum American Society for Microbiology, 2022 10(2022), 4 (DE-627)816693293 (DE-600)2807133-5 21650497 nnns volume:10 year:2022 number:4 https://doi.org/10.1128/spectrum.01449-22 kostenfrei https://doaj.org/article/d335b0c692b5484eaee4e15b2ab4c4f6 kostenfrei https://journals.asm.org/doi/10.1128/spectrum.01449-22 kostenfrei https://doaj.org/toc/2165-0497 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_252 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2022 4
allfieldsGer	10.1128/spectrum.01449-22 doi (DE-627)DOAJ030587980 (DE-599)DOAJd335b0c692b5484eaee4e15b2ab4c4f6 DE-627 ger DE-627 rakwb eng QR1-502 Tsukasa Ariyoshi verfasserin aut Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier ABSTRACT Dissemination of blaNDM, which is carried on the IncX3 plasmid, among Enterobacterales has been reported worldwide. In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future. carbapenem-resistant Enterobacterales IncX3 plasmid blaNDM-16b whole-genome sequencing comparative analysis Microbiology Kotaro Aoki verfasserin aut Hiroaki Kubota verfasserin aut Kenji Sadamasu verfasserin aut Yoshikazu Ishii verfasserin aut Kazuhiro Tateda verfasserin aut In Microbiology Spectrum American Society for Microbiology, 2022 10(2022), 4 (DE-627)816693293 (DE-600)2807133-5 21650497 nnns volume:10 year:2022 number:4 https://doi.org/10.1128/spectrum.01449-22 kostenfrei https://doaj.org/article/d335b0c692b5484eaee4e15b2ab4c4f6 kostenfrei https://journals.asm.org/doi/10.1128/spectrum.01449-22 kostenfrei https://doaj.org/toc/2165-0497 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_252 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2022 4
allfieldsSound	10.1128/spectrum.01449-22 doi (DE-627)DOAJ030587980 (DE-599)DOAJd335b0c692b5484eaee4e15b2ab4c4f6 DE-627 ger DE-627 rakwb eng QR1-502 Tsukasa Ariyoshi verfasserin aut Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier ABSTRACT Dissemination of blaNDM, which is carried on the IncX3 plasmid, among Enterobacterales has been reported worldwide. In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future. carbapenem-resistant Enterobacterales IncX3 plasmid blaNDM-16b whole-genome sequencing comparative analysis Microbiology Kotaro Aoki verfasserin aut Hiroaki Kubota verfasserin aut Kenji Sadamasu verfasserin aut Yoshikazu Ishii verfasserin aut Kazuhiro Tateda verfasserin aut In Microbiology Spectrum American Society for Microbiology, 2022 10(2022), 4 (DE-627)816693293 (DE-600)2807133-5 21650497 nnns volume:10 year:2022 number:4 https://doi.org/10.1128/spectrum.01449-22 kostenfrei https://doaj.org/article/d335b0c692b5484eaee4e15b2ab4c4f6 kostenfrei https://journals.asm.org/doi/10.1128/spectrum.01449-22 kostenfrei https://doaj.org/toc/2165-0497 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_252 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2022 4
language	English
source	In Microbiology Spectrum 10(2022), 4 volume:10 year:2022 number:4
sourceStr	In Microbiology Spectrum 10(2022), 4 volume:10 year:2022 number:4
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	carbapenem-resistant Enterobacterales IncX3 plasmid blaNDM-16b whole-genome sequencing comparative analysis Microbiology
isfreeaccess_bool	true
container_title	Microbiology Spectrum
authorswithroles_txt_mv	Tsukasa Ariyoshi @@aut@@ Kotaro Aoki @@aut@@ Hiroaki Kubota @@aut@@ Kenji Sadamasu @@aut@@ Yoshikazu Ishii @@aut@@ Kazuhiro Tateda @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	816693293
id	DOAJ030587980
language_de	englisch
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In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. 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callnumber-first	Q - Science
author	Tsukasa Ariyoshi
spellingShingle	Tsukasa Ariyoshi misc QR1-502 misc carbapenem-resistant Enterobacterales misc IncX3 misc plasmid misc blaNDM-16b misc whole-genome sequencing misc comparative analysis misc Microbiology Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid
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topic_title	QR1-502 Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid carbapenem-resistant Enterobacterales IncX3 plasmid blaNDM-16b whole-genome sequencing comparative analysis
topic	misc QR1-502 misc carbapenem-resistant Enterobacterales misc IncX3 misc plasmid misc blaNDM-16b misc whole-genome sequencing misc comparative analysis misc Microbiology
topic_unstemmed	misc QR1-502 misc carbapenem-resistant Enterobacterales misc IncX3 misc plasmid misc blaNDM-16b misc whole-genome sequencing misc comparative analysis misc Microbiology
topic_browse	misc QR1-502 misc carbapenem-resistant Enterobacterales misc IncX3 misc plasmid misc blaNDM-16b misc whole-genome sequencing misc comparative analysis misc Microbiology
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title	Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid
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title_full	Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid
author_sort	Tsukasa Ariyoshi
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author_browse	Tsukasa Ariyoshi Kotaro Aoki Hiroaki Kubota Kenji Sadamasu Yoshikazu Ishii Kazuhiro Tateda
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title_sort	molecular characterization of blandm-carrying incx3 plasmids: blandm-16b likely emerged from a mutation of blandm-5 on incx3 plasmid
callnumber	QR1-502
title_auth	Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid
abstract	ABSTRACT Dissemination of blaNDM, which is carried on the IncX3 plasmid, among Enterobacterales has been reported worldwide. In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future.
abstractGer	ABSTRACT Dissemination of blaNDM, which is carried on the IncX3 plasmid, among Enterobacterales has been reported worldwide. In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future.
abstract_unstemmed	ABSTRACT Dissemination of blaNDM, which is carried on the IncX3 plasmid, among Enterobacterales has been reported worldwide. In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future.
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title_short	Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid
url	https://doi.org/10.1128/spectrum.01449-22 https://doaj.org/article/d335b0c692b5484eaee4e15b2ab4c4f6 https://journals.asm.org/doi/10.1128/spectrum.01449-22 https://doaj.org/toc/2165-0497
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In particular, blaNDM-5-carrying IncX3 plasmids can spread among several hosts, facilitating their dissemination. Other variants, such as blaNDM-17-, blaNDM-19-, blaNDM-20-, blaNDM-21-, and blaNDM-33-carrying IncX3 plasmids, have also been reported. Here, we characterized, using whole-genome sequencing (WGS), a blaNDM-16b-carrying IncX3 plasmid harbored by Escherichia coli strain TA8571, which was isolated from a urine specimen of a hospital inpatient in Tokyo, Japan. The blaNDM-16b differed in sequence from blaNDM-5 (C < T at site 698, resulting in an Ala233Val substitution). This blaNDM-16b-carrying IncX3 plasmid (pTMTA8571-1) is 46,161 bp in length and transferred via conjugation. Transconjugants showed high resistance to β-lactam antimicrobials (except for aztreonam). Because pTMTA8571-1, which carries the Tn125-related region containing blaNDM and conjugative transfer genes, was similar to the previously reported IncX3 plasmids, we performed phylogenetic analysis based on the sequence of 34 shared genes in 142 blaNDM-carrying IncX3 plasmids (22,846/46,923 bp). Comparative analysis of the shared genes revealed short branches on the phylogenetic tree (average of 1.08 nucleotide substitutions per shared genes), but each blaNDM variant was divided into separate groups, and the structure of the tree correlated with the flowchart of blaNDM nucleotide substitutions. The blaNDM-carrying IncX3 plasmids may thereby have evolved from the same ancestral plasmid with subsequent mutation of the blaNDM. Therefore, pTMTA8571-1 likely emerged from a blaNDM-5-carrying IncX3 plasmid. This study suggested that the spread of blaNDM-carrying IncX3 plasmids may be a hotbed for the emergence of novel variants of blaNDM. IMPORTANCE blaNDM-carrying IncX3 plasmids have been reported worldwide. Harbored blaNDM variants were mainly blaNDM-5, but there were also rare variants like blaNDM-17, blaNDM-19, blaNDM-20, blaNDM-21, and blaNDM-33, including blaNDM-16b detected in this study. For these plasmids, previous reports analyzed whole genomes or parts of sequences among a small number of samples, whereas, in this study, we performed an analysis of 142 blaNDM-carrying IncX3 plasmids detected around the world. The results showed that regardless of the blaNDM variants, blaNDM-carrying IncX3 plasmids harbored highly similar shared genes. Because these plasmids already spread worldwide may be a hotbed for the emergence of rare or novel variants of blaNDM, increased attention should be paid to blaNDM-carrying IncX3 plasmids in the future.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">carbapenem-resistant Enterobacterales</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">IncX3</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">plasmid</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">blaNDM-16b</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">whole-genome sequencing</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">comparative analysis</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Microbiology</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Kotaro Aoki</subfield><subfield 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Molecular Characterization of blaNDM-Carrying IncX3 Plasmids: blaNDM-16b Likely Emerged from a Mutation of blaNDM-5 on IncX3 Plasmid

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