相关实验视频
Updated: Jun 15, 2025

10:41
Identifying Amino Acid Overproducers Using Rare-Codon-Rich Markers
Published on: June 24, 2019
8.3K
一个基于经济需求的框架,用于对暂时的氨基酸限制作出反应的优先级策略
Ritu Gupta1,2, Swagata Adhikary1,3, Nidhi Dalpatraj1
1Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK Post Bellary Road, Bangalore, India.
Nature communications
|August 23, 2024
概括
细胞优先恢复基于需求的氨基酸供应,而不仅仅是成本. 氨酸恢复强调了代谢需求如何推动这种氨基酸经济.
科学领域:
- 细胞代谢的细胞代谢.
- 生物化学 生物化学
- 系统生物学 系统生物学
背景情况:
- 细胞维持复杂的氨基酸池,其代谢和化学来源各不相同.
- 氨基酸供应成本和细胞需求需求之间的关系仍然不太清楚.
研究的目的:
- 在酵母中供应中断后量化氨基酸恢复反应.
- 揭示管理氨基酸恢复的等级优先级策略.
- 为细胞氨基酸经济建立需求驱动的框架.
主要方法:
- 单个氨基酸生物合成供应成本的全面计算.
- 总氨基酸需求的量化.
- 估计每个氨基酸的累积供需需求.
- 在酵母中氨基酸供应中断后恢复反应的分析.
主要成果:
- 氨基酸恢复优先级是按层次组织的.
- 恢复优先级主要是由总氨基酸需求驱动的.
- 总需求与特定氨基酸的低生物合成供应成本相结合.
- 代谢需求显著影响氨基酸需求,正如阿金氨酸所见.
结论:
- 一个由需求驱动的框架支配了细胞氨基酸经济.
- 本框架解释了不同氨基酸的优先恢复策略.
- 这些发现可以识别新的氨基酸反应,并为代谢工程策略提供信息.
相关概念视频
Overview of Protein Metabolism
883
Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
883
Proteins: Dietary Sources and Requirements
414
Consuming animal-based products offers high-quality proteins that contain optimal levels and combinations of essential amino acids, crucial for tissue repair and growth. Foods like eggs, milk, fish, and most meats are a source of complete proteins. Legumes and cereals are abundant in proteins; however, they typically lack a full range of essential amino acids. As a result, they are considered incomplete protein sources. Some plant sources like soybeans, quinoa, and amaranth do contain complete...
414
Pharmacokinetic Models: Comparison and Selection Criterion
50
Physiological and compartmental models are valuable tools used in studying biological systems. These models rely on differential equations to maintain mass balance within the system, ensuring an accurate representation of the dynamic processes at play.
Physiological models take a detailed approach by considering specific molecular processes. They can predict drug distribution, metabolism, and elimination changes, providing a comprehensive understanding of how drugs interact with the body.
Physiological models take a detailed approach by considering specific molecular processes. They can predict drug distribution, metabolism, and elimination changes, providing a comprehensive understanding of how drugs interact with the body.
50

