周质间隙
毕赤酵母
酵母
生物化学
信号肽
酿酒酵母
内质网
大肠杆菌
二硫键
化学
重组DNA
细胞质
细菌
蛋白质生物合成
生物
基因
遗传学
作者
Yunqi Ma,Chang-Joo Lee,Jang-Su Park
出处
期刊:Antibiotics
[MDPI AG]
日期:2020-08-26
卷期号:9 (9): 541-541
被引量:35
标识
DOI:10.3390/antibiotics9090541
摘要
Bacteria can produce recombinant proteins quickly and cost effectively. However, their physiological properties limit their use for the production of proteins in their native form, especially polypeptides that are subjected to major post-translational modifications. Proteins that rely on disulfide bridges for their stability are difficult to produce in Escherichia coli. The bacterium offers the least costly, simplest, and fastest method for protein production. However, it is difficult to produce proteins with a very large size. Saccharomyces cerevisiae and Pichia pastoris are the most commonly used yeast species for protein production. At a low expense, yeasts can offer high protein yields, generate proteins with a molecular weight greater than 50 kDa, extract signal sequences, and glycosylate proteins. Both eukaryotic and prokaryotic species maintain reducing conditions in the cytoplasm. Hence, the formation of disulfide bonds is inhibited. These bonds are formed in eukaryotic cells during the export cycle, under the oxidizing conditions of the endoplasmic reticulum. Bacteria do not have an advanced subcellular space, but in the oxidizing periplasm, they exhibit both export systems and enzymatic activities directed at the formation and quality of disulfide bonds. Here, we discuss current techniques used to target eukaryotic and prokaryotic species for the generation of correctly folded proteins with disulfide bonds.
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