Glutathione-S-transferase Fusion Protein Nanosensor.
Glutathione-S-transferase Fusion Protein Nanosensor.
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谷胱甘肽- s转移酶融合蛋白纳米传感器。
DOI:
10.1021/acs.nanolett.0c02691
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发表时间:
2020-10-14
期刊:
影响因子:
10.8
通讯作者:
Heller DA
中科院分区:
文献类型:
--
作者:
Williams RM;Harvey JD;Budhathoki-Uprety J;Heller DA
Fusion protein tags are widely used to capture and track proteins in research and industrial bioreactor processes. Quantifying fusion-tagged proteins normally requires several purification steps coupled with classical protein assays. Here, we developed a broadly-applicable nanosensor platform that quantifies glutathione-S-transferase (GST) fusion proteins in real-time. We synthesized a glutathione-DNA-carbon nanotube system to investigate glutathione-GST interactions via semiconducting single-walled carbon nanotube (SWCNT) photoluminescence. We found that SWCNT fluorescence wavelength and intensity modulation occurred specifically in response to GST and GST-fusions. The sensor response was dependent on SWCNT structure, wherein mod(n-m, 3) = 1 nanotube wavelength and intensity responses correlated with nanotube diameter distinctly from mod(n-m, 3) = 2 SWCNT responses. We also found broad functionality of this sensor to diverse GST-tagged proteins. This work comprises the first label-free optical sensor for GST and has implications for the assessment of protein expression in situ, including in imaging and industrial bioreactor settings.
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影响因子:
15
作者:
Cheng, Penghui;Miao, Qingqing;Pu, Kanyi
通讯作者:
Pu, Kanyi
DOI:
10.1038/nbt1088-1204
发表时间:
1988-10-01
期刊:
BIO-TECHNOLOGY
影响因子:
--
作者:
HOPP, TP;PRICKETT, KS;CONLON, PJ
通讯作者:
CONLON, PJ
影响因子:
41.2
作者:
Huang, Jiaguo;Li, Jingchao;Pu, Kanyi
通讯作者:
Pu, Kanyi
影响因子:
17.1
作者:
Galassi TV;Jena PV;Shah J;Ao G;Molitor E;Bram Y;Frankel A;Park J;Jessurun J;Ory DS;Haimovitz-Friedman A;Roxbury D;Mittal J;Zheng M;Schwartz RE;Heller DA
通讯作者:
Heller DA
影响因子:
56.9
作者:
Bachilo, SM;Strano, MS;Weisman, RB
通讯作者:
Weisman, RB