yadBC of Yersinia pestis , a New Virulence Determinant for Bubonic Plague
| Autor: | Robert D. Perry, Tanya Myers-Morales, Stanislav Forman, Clarissa Cowan, Christine R. Wulff, Susan C. Straley |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Pneumonic plague
Virulence Factors Yersinia pestis Operon Immunology Virulence Biology Microbiology Bubonic plague Bacterial Adhesion Cell Line Lethal Dose 50 Mice medicine Animals Humans Adhesins Bacterial Plague Yersiniosis Gene Expression Regulation Bacterial medicine.disease biology.organism_classification Molecular Pathogenesis Enterobacteriaceae Retraction Mice Inbred C57BL Bacterial adhesin Infectious Diseases Female Parasitology Gene Deletion |
| Zdroj: | Infection and Immunity. 76:578-587 |
| ISSN: | 1098-5522 0019-9567 |
| Popis: | In all Yersinia pestis strains examined, the adhesin/invasin yadA gene is a pseudogene, yet Y. pestis is invasive for epithelial cells. To identify potential surface proteins that are structurally and functionally similar to YadA, we searched the Y. pestis genome for open reading frames with homology to yadA and found three: the bicistronic operon yadBC (YPO1387 and YPO1388 of Y. pestis CO92; y2786 and y2785 of Y. pestis KIM5), which encodes two putative surface proteins, and YPO0902, which lacks a signal sequence and likely is nonfunctional. In this study we characterized yadBC regulation and tested the importance of this operon for Y. pestis adherence, invasion, and virulence. We found that loss of yadBC caused a modest loss of invasiveness for epithelioid cells and a large decrease in virulence for bubonic plague but not for pneumonic plague in mice. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|