在存在分子噪音的情况下,合成基因电路的自动设计
Carlos Sequeiros1, Carlos Vázquez2, Julio R Banga1
1Computational Biology Lab, MBG-CSIC, Spanish National Research Council, 36143 Pontevedra, Spain.
ACS synthetic biology
|October 9, 2023
概括
这项研究引入了一种新的计算方法,用于设计微生物中的合成基因电路,有效地纳入分子噪声. 这种方法可以通过高效地模拟随机基因调节来创建强大的生物系统.
科学领域:
- 合成生物学 合成生物学
- 计算生物学是一种计算生物学.
- 微生物遗传学微生物遗传学
背景情况:
- 微生物作为合成生物学中遗传结构的关键宿主.
- 分子噪声显著影响微生物细胞中的基因调节动态,原因是mRNA复制数量较低.
- 自动化生物电路设计通常会忽略分子噪声,因为化学主方程的计算强度很高.
研究的目的:
- 开发一种高效的计算方法,用于自动设计合成基因电路,以解释分子噪声.
- 将一种新的建模方法与优化技术相结合,以克服化学主方程的局限性.
- 为了证明拟议的方法在微生物中设计强大的合成基因电路的适用性.
主要方法:
- 混合整数非线性全局优化方法与部分整微分方程模型相结合.
- 部分整微分方程模型有效地近似化学主方程,用于随机基因调节系统.
- 该方法应用于设计各种合成基因电路,包括基因开关,振荡器和自适应电路.
主要成果:
- 提出的方法成功实现了在分子噪声的影响下合成基因电路的自动设计.
- 部分整微分方程模型提供了化学总方程的高效近似.
- 证明了双模态静态基因开关,强大的静态振荡器和具有生物化学适应性的电路的成功设计.
结论:
- 开发的计算方法为在分子噪声的情况下设计合成基因电路提供了有效的解决方案.
- 这种方法通过考虑固有的随机性来促进创建更强大,更可预测的生物系统.
- 这些发现对推进合成生物学和微生物工程领域具有重大意义.
相关概念视频
Synthetic Biology
4.8K
Synthetic biology is an interdisciplinary science that involves using principles from disciplines such as engineering, molecular biology, cell biology, and systems biology. It involves remodeling existing organisms from nature or constructing completely new synthetic organisms for applications such as protein or enzyme production, bioremediation, value-added macromolecule production, and the addition of desirable traits to crops, to name a few.
Golden rice
Golden rice is a genetically modified...
Golden rice
Golden rice is a genetically modified...
4.8K
Combinatorial Gene Control
8.4K
Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
8.4K


