Title |
Complete genome sequence of the Clostridium difficile laboratory strain 630Δerm reveals differences from strain 630, including translocation of the mobile element CTn5
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Published in |
BMC Genomics, January 2015
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DOI | 10.1186/s12864-015-1252-7 |
Pubmed ID | |
Authors |
Erika van Eijk, Seyed Yahya Anvar, Hilary P Browne, Wai Yi Leung, Jeroen Frank, Arnoud M Schmitz, Adam P Roberts, Wiep Klaas Smits |
Abstract |
Background Clostridium difficile strain 630¿erm is a spontaneous erythromycin sensitive derivative of the reference strain 630 obtained by serial passaging in antibiotic-free media. It is widely used as a defined and tractable C. difficile strain. Though largely similar to the ancestral strain, it demonstrates phenotypic differences that might be the result of underlying genetic changes. Here, we performed a de novo assembly based on single-molecule real-time sequencing and an analysis of major methylation patterns.ResultsIn addition to single nucleotide polymorphisms and various indels, we found that the mobile element CTn5 is present in the gene encoding the methyltransferase rumA rather than adhesin CD1844 where it is located in the reference strain.ConclusionsTogether, the genetic features identified in this study may help to explain at least part of the phenotypic differences. The annotated genome sequence of this lab strain, including the first analysis of major methylation patterns, will be a valuable resource for genetic research on C. difficile. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 3 | 38% |
Netherlands | 1 | 13% |
Unknown | 4 | 50% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 3 | 38% |
Practitioners (doctors, other healthcare professionals) | 1 | 13% |
Mendeley readers
Geographical breakdown
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Ghana | 1 | 1% |
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Unknown | 88 | 94% |
Demographic breakdown
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Researcher | 14 | 15% |
Student > Master | 12 | 13% |
Student > Bachelor | 8 | 9% |
Professor > Associate Professor | 4 | 4% |
Other | 11 | 12% |
Unknown | 14 | 15% |
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Biochemistry, Genetics and Molecular Biology | 22 | 23% |
Immunology and Microbiology | 14 | 15% |
Medicine and Dentistry | 3 | 3% |
Engineering | 3 | 3% |
Other | 7 | 7% |
Unknown | 17 | 18% |