Plasmid‐encoded protein attenuates Escherichia coli swimming velocity and cell growth, not reprogrammed regulatory functions
Plasmid‐encoded protein attenuates Escherichia coli swimming velocity and cell growth, not reprogrammed regulatory functions
复制标题
质粒编码的蛋白质减弱了大肠杆菌的游动速度和细胞生长,而不是重新编程的调节功能
DOI:
10.1002/btpr.2778
复制
发表时间:
2019
影响因子:
2.9
通讯作者:
Bentley, William E.
中科院分区:
文献类型:
--
作者:
Virgile, Chelsea;Hauk, Pricila;Wu, Hsuan‐Chen;Bentley, William E.
In addition to engineering new pathways for synthesis, synthetic biologists rewire cells to carry out “programmable” functions, an example being the creation of wound‐healing probiotics. Engineering regulatory circuits and synthetic machinery, however, can be deleterious to cell function, particularly if the “metabolic burden” is significant. Here, a synthetic regulatory circuit previously constructed to directEscherichiacolito swim toward hydrogen peroxide, a signal of wound generation, was shown to work even with coexpression of antibiotic resistance genes and genes associated with lactose utilization. We found, however, that cotransformation with a second vector constitutively expressing GFP (as a marker) and additionally conferring resistance to kanamycin and tetracycline resulted in slower velocity (Δ~6 μm/s) and dramatically reduced growth rate (Δ > 50%). The additional vector did not, however, alter the run‐and‐tumble ratio or directional characteristics of H2O2–dependent motility. The main impact of this additional burden was limited to slowing cell velocity and growth, suggesting that reprogrammed cell motility by minimally altering native regulatory circuits can be maintained even when extraneous burden is placed on the host cell. © 2019 American Institute of Chemical EngineersBiotechnol. Prog., 35: e2778, 2019.
登录
查看更多内容
DOI:
10.1039/c2ib00091a
发表时间:
2012-02
期刊:
Integrative biology : quantitative biosciences from nano to macro
影响因子:
--
作者:
Toley BJ;Forbes NS
通讯作者:
Forbes NS
影响因子:
5.5
作者:
Jessica L. Terrell;G. Payne;W. Bentley
通讯作者:
W. Bentley
影响因子:
11.4
作者:
Zhang, AX;Altuvia, S;Storz, G
通讯作者:
Storz, G
影响因子:
4.7
作者:
McKay,Ryan;Hauk,Pricila;Quan,David;Bentley,WilliamE
通讯作者:
Bentley,WilliamE
影响因子:
2.7
作者:
Pottash, Alex Eli;McKay, Ryan;Bentley, William E.
通讯作者:
Bentley, William E.