在细菌表达系统中产生逆转录酶和DNA聚合酶
Kristína Hriňová1, Johana Dlapová1, Bohuš Kubala2
1Department of Molecular Biology, Faculty of Natural Sciences, Comenius University in Bratislava, 84215 Bratislava, Slovakia.
Bioengineering (Basel, Switzerland)
|July 27, 2024
概括
维布里奥纳特里基因是产生重组DNA放大和逆转录酶的有希望的宿主,为酶生产提供了适合于大肠杆菌的替代品. 这项研究证明了其产生可溶性Taq DNA聚合酶和突变M-MLV逆转录酶的潜力.
科学领域:
- 生物技术是生物技术.
- 分子生物学分子生物学
- 微生物工程 微生物工程
背景情况:
- DNA放大和逆转录酶对于诊断和研究至关重要.
- 这些酶的高水平生产对于它们的广泛应用至关重要.
- 大肠杆菌是常见的宿主,但在重组蛋白质生产方面存在挑战.
研究的目的:
- 评估Vibrio natriegens作为突变Taq DNA聚合酶和突变M-MLV逆转录酶的表达宿主.
- 为了比较V. natriegens和Escherichia coli中的酶生产水平和溶解度.
- 为了研究V. natriegens.的细胞外酶生产.
主要方法:
- 在V. natriegens和E. coli中突变的Taq DNA聚合酶和M-MLV逆转录酶的基因表达.
- 优化表达条件的优化.
- 使用总细胞蛋白 (TCP) 的百分比来分析细胞内和细胞外蛋白质的产生.
- 蛋白质溶解性的评估.
主要成果:
- 细胞内M-MLV产生:V. natriegens中11%的TCP与大肠杆菌中的16%的TCP相比;可溶性蛋白质:V. natriegens中11%与大肠杆菌中的22%相比.
- 细胞内Taq pol产生:V. natriegens中30%的TCP与E. coli中26%的TCP;可溶性蛋白质:V. natriegens中23%与E. coli中几乎不可溶性蛋白质.
- 在V. natriegens. 中检测到大量的细胞外Taq pol产生.
结论:
- 振动性纳特里基因是用于重组酶生产的可行的替代宿主.
- V. natriegens 显示了高水平可溶性 Taq DNA 聚合酶和 M-MLV 逆转录酶的产生潜力.
- 在V. natriegens中Taq pol的细胞外生产提供了额外的生产可能性.
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