相关实验视频
Updated: May 26, 2026
10:09
Inducible T7 RNA Polymerase-mediated Multigene Expression System, pMGX
Published on: June 27, 2017
13.2K
在工程化 Prokaryotes 中可扩展的 Geranyl Geranylated 蛋白质的一生产
Md Shahadat Hossain1, Md Mahbubul Alam1, Zhiwei Huang1
1Department of Chemistry, Syracuse University, 111 College Place, Syracuse, New York 13244, United States.
Bioconjugate chemistry
|March 3, 2025
概括
我们开发了一种具有成本效益的方法,使用工程Escherichia coli来生产geranylgeranylated蛋白质. 这一突破简化了对这些重要的蛋白质的获取,用于研究和生物材料应用.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 蛋白质工程是指蛋白质工程.
背景情况:
- 基拉尼尔基拉尼化是一种关键的翻译后修饰,影响细胞功能.
- 现有的合成基拉尼尔基拉尼蛋白的方法复杂且昂贵,限制了它们的可用性.
- 需要可访问和可扩展的方法来生产geranylgeranylated蛋白质.
研究的目的:
- 开发一种精简的,单一的方法,用于在大肠杆菌中生产基拉尼尔基拉尼化蛋白质.
- 用各种蛋白质基质来证明该方法的多功能性.
- 为了研究基拉尼尔基拉尼化对蛋白质生物物理性质的影响.
主要方法:
- 经过工程 Escherichia coli 来表达杰拉尼尔-杰拉尼尔-酸盐合成酶 (GGS).
- 与geranylgeranyltransferase共同表达的GGS用于高效的蛋白质修饰.
- 使用的模型基板包括弹性类多 (ELPs),mCherry,RhoA和Rap1B.
主要成果:
- 实现了基拉尼尔基拉尼化蛋白质的高效单生产.
- 证明了对内在无序和球状蛋白质的成功修改.
- 观察到ELP的改变相位分离和纳米组装以及mCherry的脂质双层参与.
结论:
- 开发的方法为geranylgeranylated蛋白质生产提供了可扩展,多功能和成本效益的方法.
- 这种方法为各种应用提供了更广泛的 geranyl-geranylated 蛋白质.
- 为生物化学研究,治疗开发和生物材料工程开辟了新的途径.
相关概念视频
01:27Upstream Processing
Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
01:27Production of Antibiotics
Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
01:30Production of Pharmaceuticals
Industrial insulin production uses genetically engineered E. coli expressing a proinsulin gene controlled by a tryptophan promoter and containing a methionine linker for later cleavage. The cells also carry ampicillin resistance for selective growth. Seed cultures are stored at −80 °C and production begins by thawing a small amount to inoculate starter cultures, which are progressively scaled to a 50,000-L bioreactor. In the bioreactor, E. coli grow in nutrient-rich media under sterile, tightly...