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Conservative Site-specific Recombination and Phase Variation02:53

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Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
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Updated: Jan 7, 2026

Identification of Functional Protein Regions Through Chimeric Protein Construction
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使用ChimeraUGEM网络服务器设计基因稳定的多拷贝基因结构.

Moritz Burghardt1, Alon Diament1, Tamir Tuller1,2,3

  • 1Department of Biomedical Engineering, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv 69978, Israel.

NAR genomics and bioinformatics
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PubMed
概括
此摘要是机器生成的。

我们开发了一种新的算法,多序基因图 (MScMap),用于设计稳定,高表达的基因系统. 通过创建多样化的DNA序列,MScMap最大限度地减少了多副本系统中的遗传不稳定性,超过了现有的方法.

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The MultiBac Protein Complex Production Platform at the EMBL
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科学领域:

  • 生物技术是生物技术.
  • 分子生物学分子生物学
  • 生物信息学是一种生物信息学.

背景情况:

  • 高水平的蛋白质生产通常需要将多个基因拷贝集成到宿主生物体中.
  • 多复制基因系统面临遗传不稳定性,原因是相同的DNA序列之间的同源重组.

研究的目的:

  • 开发一种设计多个同名编码序列的算法,以最大限度地降低重组风险并保持高蛋白表达.
  • 增强多拷贝基因系统中的遗传稳定性.

主要方法:

  • 开发了多序ChimeraMap (MScMap) 算法,扩展了ChimeraMap框架.
  • MScMap从宿主基因组中选择多样化的核酸块,并使用启发式来减少共同的子链,最大限度地减少重组.
  • 该算法与人类蛋白质优化的多目标进化算法进行了测试.

主要成果:

  • 与多目标进化算法相比,MScMap在遗传稳定性和预测表达方面表现出卓越的表现.
  • 该方法显著减少了编码序列优化的计算时间.
  • 此外,MScMap还有效地减少了单个编码序列中的序列重复.

结论:

  • MScMap为设计基因稳定,高表达多拷贝基因系统提供了高效和有效的解决方案.
  • 该算法为蛋白质工程和合成生物学应用提供了有价值的工具.
  • 一个网络工具可用于优化单个和多副本编码序列.