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Characterization of a potential ABC-type bacteriocin exporter protein from Treponema denticola

Overview of attention for article published in BMC Oral Health, July 2016
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Title
Characterization of a potential ABC-type bacteriocin exporter protein from Treponema denticola
Published in
BMC Oral Health, July 2016
DOI 10.1186/s12903-016-0243-7
Pubmed ID
Authors

Kimiko Tanaka-Kumazawa, Yuichiro Kikuchi, Yumiko Sano-Kokubun, Seikou Shintani, Masashi Yakushiji, Howard K. Kuramitsu, Kazuyuki Ishihara

Abstract

Treponema denticola is strongly associated with the development of periodontal disease. Both synergistic and antagonistic effects are observed among bacterial species in the process of biofilm formation. Bacteriocin-related genes have not yet been fully characterized in periodontopathic bacteria. The aim of this study was to detect and characterize bacteriocin-associated proteins in T. denticola. The whole genome sequence of T. denticola ATCC 35405 was screened with a Streptococcus mutans bacteriocin immunity protein (ImmA/Bip) sequence. The prevalence of homologous genes in T. denticola strains was then investigated by Southern blotting. Expression of the genes was evaluated by qRT-PCR. In the genome sequence of T. denticola, an amino acid sequence coded by the open reading frame TDE_0719 showed 26 % identity with the S. mutans ImmA. Furthermore, two protein sequences encoded by TDE_0425 and TDE_2431 in T. denticola ATCC 35405 showed ~40 % identity with that coded by TDE_0719. Therefore, TDE_0425, TDE_0719, and TDE_2431 were designated as tepA1, A2, and A3, respectively. Open reading frames showing similarity to the HlyD family of secretion proteins were detected downstream of tepA1, A2, and A3. They were designated as tepB1, B2, and B3, respectively. A gene harboring a bacteriocin-like signal sequence was detected upstream of tepA1. The prevalence of tepA1 and A2 differed among Treponema species. Susceptibility to chloramphenicol and ofloxacin was slightly decreased in a tepA2 mutant while that to kanamycin was increased. Expression of tepA3-B3 was increased in the tepA2 mutant. These results indicate that T. denticola ATCC 35405 has three potential bacteriocin export proteins and that the presence of these genes differs among the Treponema strains. TepA3-B3 of the corresponding proteins may be involved in resistance to chloramphenicol.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 33 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 33 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 7 21%
Student > Bachelor 4 12%
Student > Postgraduate 4 12%
Student > Master 4 12%
Student > Ph. D. Student 3 9%
Other 3 9%
Unknown 8 24%
Readers by discipline Count As %
Medicine and Dentistry 10 30%
Biochemistry, Genetics and Molecular Biology 7 21%
Immunology and Microbiology 2 6%
Agricultural and Biological Sciences 2 6%
Business, Management and Accounting 1 3%
Other 2 6%
Unknown 9 27%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 17 July 2016.
All research outputs
#20,335,770
of 22,880,691 outputs
Outputs from BMC Oral Health
#1,166
of 1,475 outputs
Outputs of similar age
#310,562
of 356,439 outputs
Outputs of similar age from BMC Oral Health
#22
of 28 outputs
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So far Altmetric has tracked 1,475 research outputs from this source. They receive a mean Attention Score of 4.9. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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We're also able to compare this research output to 28 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.