The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.
Identification of competence pheromone responsive genes in Streptococcus pneumoniae by use of DNA microarrays
Open accessAbstract
Summary: Natural genetic transformation in Streptococcus pneumoniae is controlled in part by a quorum‐sensing system mediated by a peptide pheromone called competence‐stimulating peptide (CSP), which acts to coordinate transient activation of genes required for competence. To characterize the transcriptional response and regulatory events occurring when cells are exposed to competence pheromone, we constructed DNA microarrays and analysed the temporal expression profiles of 1817 among the 2129 unique predicted open reading frames present in the S. pneumoniae TIGR4 genome (84%). After CSP stimulation, responsive genes exhibited four temporally distinct expression profiles: early, late and delayed gene induction, and gene repression. At least eight early genes participate in competence regulation including comX, which encodes an alternative sigma factor. Late genes were dependent on ComX for CSP‐induced expression, many playing important roles in transformation. Genes in the delayed class (third temporal wave) appear to be stress related. Genes repressed during the CSP response include ribosomal protein loci and other genes involved in protein synthesis. This study increased the number of identified CSP‐responsive genes from approximately 40 to 188. Given the relatively large number of induced genes (6% of the genome), it was of interest to determine which genes provide functions essential to transformation. Many of the induced loci were subjected to gene disruption mutagenesis, allowing us to establish that among 124 CSP‐inducible genes, 67 were individually dispensable for transformation, whereas 23 were required for transformation.
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Cited by
Antibiotic Stress Induces Genetic Transformability in the Human Pathogen Streptococcus pneumoniae
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Recent trends on the molecular biology of pneumococcal capsules, lytic enzymes, and bacteriophage
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Quorum Sensing Regulation of Competence and Bacteriocins in Streptococcus pneumoniae and mutans
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Metadata
- Authors
- Peterson, S. N., Sung, C. K., Cline, R., Desai, B. V., Snesrud, E. C., Luo, P., Walling, J., Li, H., Mintz, M., Tsegaye, G., Burr, P. C., Do, Y., Ahn, S., Gilbert, J., Fleischmann, R. D., & Morrison, D. A.
- Venue
- Molecular Microbiology
- Publisher
- Wiley
- Published
- 2003-12-23
- Volume
- 51
- Issue
- 4
- Pages
- 1051-1070
- ISSN
- 0950-382X (ISSN-L)
- 1365-2958
- OpenAlex
- W1850703260
- Cited by
- 381
- References
- 37
- FWCI
- 10.21
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Peterson, S. N., Sung, C. K., Cline, R., Desai, B. V., Snesrud, E. C., Luo, P., Walling, J., Li, H., Mintz, M., Tsegaye, G., Burr, P. C., Do, Y., Ahn, S., Gilbert, J., Fleischmann, R. D., & Morrison, D. A. (2004). Identification of competence pheromone responsive genes in Streptococcus pneumoniae by use of DNA microarrays. Molecular Microbiology. https://doi.org/10.1046/j.1365-2958.2003.03907.x
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