Phylogenetic analysis of pbp genes in treponemes

Background: β-Lactamases are the main cause of bacterial resistance to penicillin, cephalosporins, and related β-lactam compounds. The presence of the novel penicillin-binding protein (pbp) Tp47 in Treponema pallidum has been reported to be a well-known mechanism for turnover o...

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Main Authors: Tejpreet Chadha, Adão Alexandre Trindade
Format: Article
Language:English
Published: Taylor & Francis Group 2013-01-01
Series:Infection Ecology & Epidemiology
Subjects:
Online Access:http://www.infectionecologyandepidemiology.net/index.php/iee/article/view/18636/pdf_1
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author Tejpreet Chadha
Adão Alexandre Trindade
author_facet Tejpreet Chadha
Adão Alexandre Trindade
author_sort Tejpreet Chadha
collection DOAJ
description Background: β-Lactamases are the main cause of bacterial resistance to penicillin, cephalosporins, and related β-lactam compounds. The presence of the novel penicillin-binding protein (pbp) Tp47 in Treponema pallidum has been reported to be a well-known mechanism for turnover of b-lactam antibiotics. Although, T. pallidum remains sensitive to penicillin, clinically significant resistance to macrolides has emerged in many developing countries. The genome sequence of T. pallidum has shown the presence of genes encoding pbp, but there are no current reports of the presence of mobile plasmids. Methods: The phylogenetic analysis is used to study the diversity of chromosomal pbp genes and its relatedness to Tp47 in Treponema species. Results: In our study, genes encoding penicillin-binding proteins that showed significant similarity to each other appeared in separate clusters. Conclusion: Tp47 showed no substantial similarity to other β-lactamases in treponemes. The relatedness of Treponema denticola to other treponemes, including T. pallidum, and the reported presence of natural mobile antibiotic determinants highlight the importance of investigating the diversity of pbp genes in Treponema species. This will lead to a greater understanding of its potential to develop additional antibiotic resistance via horizontal gene transfer that could seriously compromise the treatment and control of syphilis.
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spelling doaj.art-ba5557cbfbd441cdafe14d8b9637d1842022-12-22T00:33:13ZengTaylor & Francis GroupInfection Ecology & Epidemiology2000-86862013-01-01301510.3402/iee.v3i0.18636Phylogenetic analysis of pbp genes in treponemesTejpreet ChadhaAdão Alexandre TrindadeBackground: β-Lactamases are the main cause of bacterial resistance to penicillin, cephalosporins, and related β-lactam compounds. The presence of the novel penicillin-binding protein (pbp) Tp47 in Treponema pallidum has been reported to be a well-known mechanism for turnover of b-lactam antibiotics. Although, T. pallidum remains sensitive to penicillin, clinically significant resistance to macrolides has emerged in many developing countries. The genome sequence of T. pallidum has shown the presence of genes encoding pbp, but there are no current reports of the presence of mobile plasmids. Methods: The phylogenetic analysis is used to study the diversity of chromosomal pbp genes and its relatedness to Tp47 in Treponema species. Results: In our study, genes encoding penicillin-binding proteins that showed significant similarity to each other appeared in separate clusters. Conclusion: Tp47 showed no substantial similarity to other β-lactamases in treponemes. The relatedness of Treponema denticola to other treponemes, including T. pallidum, and the reported presence of natural mobile antibiotic determinants highlight the importance of investigating the diversity of pbp genes in Treponema species. This will lead to a greater understanding of its potential to develop additional antibiotic resistance via horizontal gene transfer that could seriously compromise the treatment and control of syphilis.http://www.infectionecologyandepidemiology.net/index.php/iee/article/view/18636/pdf_1Treponema pallidumpenicillin-binding proteins (pbp)Tp47
spellingShingle Tejpreet Chadha
Adão Alexandre Trindade
Phylogenetic analysis of pbp genes in treponemes
Infection Ecology & Epidemiology
Treponema pallidum
penicillin-binding proteins (pbp)
Tp47
title Phylogenetic analysis of pbp genes in treponemes
title_full Phylogenetic analysis of pbp genes in treponemes
title_fullStr Phylogenetic analysis of pbp genes in treponemes
title_full_unstemmed Phylogenetic analysis of pbp genes in treponemes
title_short Phylogenetic analysis of pbp genes in treponemes
title_sort phylogenetic analysis of pbp genes in treponemes
topic Treponema pallidum
penicillin-binding proteins (pbp)
Tp47
url http://www.infectionecologyandepidemiology.net/index.php/iee/article/view/18636/pdf_1
work_keys_str_mv AT tejpreetchadha phylogeneticanalysisofpbpgenesintreponemes
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