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BioFuse: A programmable timer switch of gene expression

delete2025-08-27
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PRE
AI
C
Cheng Huang
J
Jie Zhao
Z
Zichun Tan
S
Shang Dai *
B
Binqiang Wang
Z
Zhenming Xie
F
F. Zhang
N
Ning Yu
C
Chunhui Cai
Y
Yonghua Yao
B
Baojun Wang
B
Bing Tian *
DOI:10.1126/sciadv.adv7892delete
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摘要

摘要

En 中文
当前用于调控基因表达时序的基因回路依赖于各类调控因子及其靶标之间的复杂相互作用,这限制了它们在时间调控范围上的灵活性。在此,我们报道了一种可编程的基因表达计时开关装置BioFuse,其反应时间可调控范围从小时到天。BioFuse由一系列串联的熔丝样DNA盒组成,可被腺嘌呤碱基编辑器(ABEs)按序编辑,一旦编辑完成即可激活或失活下游基因。通过调整所整合的DNA盒数量,可精确编程BioFuse的反应时间。将BioFuse应用于调控类胡萝卜素生物合成基因,可在大肠杆菌中解耦番茄红素生产与生长过程,并在无外源诱导剂的情况下提高番茄红素产量。将BioFuse应用于细菌自溶系统,可实现蛋白质的及时且高效释放。BioFuse为在细菌中精确、宽范围调控基因表达及代谢活动提供了通用工具,在工业和生物医学领域具有潜在应用价值。
Keyword:
BioFuse
gene expression timing
adenine base editors
metabolic engineering
bacterial autolysis

期刊

Science Advances 封面图
Science Advances
IF:
12.5
论文数:
2.1W
被引数:
18.1W

机构

Z
zhejiang university
学者数:
17.7W
论文数: 12.1W
被引数: 152
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