开发一种在高频率下转化为新出现的人类真菌病原体的穿载体:Candida auris
Brenden Determann1, Jianmin Fu1, Brian L Wickes1
1The Department of Microbiology, Immunology, and Molecular Genetics, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229-3900, USA.
Journal of fungi (Basel, Switzerland)
|July 26, 2024
概括
研究人员通过探索其中心流体序列,开发了一种新的Candida auris等离子体. 这种新工具增强了对这种重要的人类真菌病原体的分子操纵和调查.
科学领域:
- 菌分子生物学 菌分子生物学
- 医学真菌学 医学真菌学
- 遗传学 是一个遗传学.
背景情况:
- 由于缺乏合适的等离子体,对*Candida auris*的分子操纵受到阻碍.
- 在C. auris*中现有的转化方法缺乏高效的克隆或穿载体.
- 在 *C. auris* 中的中心序列是特征性的,但不作为分子工具使用.
研究的目的:
- 为了确定*C. auris*能够形成稳定,可转化等离子体的中心层序列.
- 为*C. auris*分子研究开发一种新的航天器载体.
- 评估中心分子衍生序列作为等离子体维护元素的实用性.
主要方法:
- 克隆所有七个 *C. auris* 中心层序列.
- 对克隆序列进行变换频率和等离子体稳定性的测试.
- 使用高频变换子克隆构建和描述一个穿向量.
- 在大肠杆菌中拯救和分析等离子体.
- 在 *C. auris* 类别中评估转换效率.
主要成果:
- 在测试的中位数序列中,转换频率在测试的中位数序列中差异很大.
- 一个1.7Kb的亚克隆在等离子体中表现出高的转变频率和ARS类属性.
- 开发的穿载体在选择下稳定 (每细胞约1个副本),但在没有选择的情况下很容易丢失.
- 即使有了大型插入,等离子体也在C. auris中保持完整,并转化了所有四个C. auris.
结论:
- *C. auris* 中心层序列可以被利用来制造功能性质粒.
- 开发的等离子体是*C. auris*研究的宝贵和多功能工具.
- 这种新试剂将大大推进对*Candida auris*作为人类真菌病原体的研究.
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