在Saccharomyces cerevisiae基因组的功能概况
Guri Giaever1, Angela M Chu, Li Ni
1Stanford Genome Technology Center, Stanford University, Palo Alto, California 94304, USA.
Nature
|July 26, 2002
概括
这项研究创建了一个全面的酵母基因删除集合,以揭示基因功能. 该资源量化评估基因适应性,揭示了在各种条件下生长的必要基因.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 酵母遗传学 酵母遗传学
背景情况:
- 了解基因功能对于生物研究至关重要.
- 传统的基因选有局限性,可以错过重要的基因.
- 需要一种系统的方法来全面研究基因功能.
研究的目的:
- 为了创建一个几乎完整的Saccharomyces cerevisiae基因删除突变的集合.
- 开发一种高通量方法来评估基因功能和适应性.
- 在不同的环境条件下识别酵母生长所必需的基因.
主要方法:
- 系统构建一个96%全面的酵母基因删除突变集合.
- 利用DNA"分子条形码"进行独特的菌株识别.
- 并行增长分析和使用高密度寡核酸阵列的定量适应性评估.
主要成果:
- 在六个测试条件下 (高盐,,银糖,pH8,最小中等,尼斯塔丁) 确定了既知和新型基因,这些基因对最佳酵母生长至关重要.
- 证明,在测试条件下,只有很小一部分 (不到7%) 的上调基因对在测试条件下生长至关重要.
- 验证了酵母基因删除集合对功能基因组学的有用性.
结论:
- 综合的酵母基因删除突变物集合是功能基因组学的强大资源.
- 这种系统的方法克服了传统遗传查的局限性.
- 这项研究提供了对跨越各种环境压力的基因本质性的定量见解.
相关概念视频
Ribosome Profiling
3.2K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
3.2K
Bioreactor Controls-III
67
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
67


