首页> 外文期刊>Infection and immunity >Staphylococcus aureus Virulence Factors Identified by Using a High-Throughput Caenorhabditis elegans-Killing Model
【24h】

Staphylococcus aureus Virulence Factors Identified by Using a High-Throughput Caenorhabditis elegans-Killing Model

机译:高通量秀丽隐杆线虫-杀死模型鉴定金黄色葡萄球菌致病因子。

获取原文
           

摘要

Staphylococcus aureus is an important human pathogen that is also able to kill the model nematode Caenorhabditis elegans. We constructed a 2,950-member Tn917 transposon insertion library in S. aureus strain NCTC 8325. Twenty-one of these insertions exhibited attenuated C. elegans killing, and of these, 12 contained insertions in different genes or chromosomal locations. Ten of these 12 insertions showed attenuated killing phenotypes when transduced into two different S. aureus strains, and 5 of the 10 mutants correspond to genes that have not been previously identified in signature-tagged mutagenesis studies. These latter five mutants were tested in a murine renal abscess model, and one mutant harboring an insertion in nagD exhibited attenuated virulence. Interestingly, Tn917 was shown to have a very strong bias for insertions near the terminus of DNA replication.
机译:金黄色葡萄球菌是一种重要的人类病原体,也能杀死线虫秀丽隐杆线虫。我们在 S中构建了一个2950名成员的Tn 917 转座子插入库。金黄色葡萄球菌菌株NCTC8325。其中21个插入片段表现出减弱的 C。线虫的杀死,其中有12个包含在不同基因或染色体位置的插入。当将这12个插入片段中的10个插入到两个不同的 S中时,它们的杀伤表型减弱。金黄色葡萄球菌菌株,其中10个突变体中有5个对应于以前在特征标记诱变研究中尚未鉴定的基因。在鼠肾脓肿模型中测试了后五个突变体,其中一个在 nagD 中插入的突变体表现出弱毒力。有趣的是,Tn 917 被证明对DNA复制末端附近的插入有很强的偏见。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号