scholarly journals Real-Time Monitoring of Chromophore Isomerization and Deprotonation during the Photoactivation of the Fluorescent Protein Dronpa

2014 ◽  
Vol 119 (6) ◽  
pp. 2404-2414 ◽  
Author(s):  
Dheerendra Yadav ◽  
Fabien Lacombat ◽  
Nadia Dozova ◽  
Fabrice Rappaport ◽  
Pascal Plaza ◽  
...  
Nanoscale ◽  
2018 ◽  
Vol 10 (16) ◽  
pp. 7726-7735 ◽  
Author(s):  
Fang You ◽  
Wenqin Tang ◽  
Lin-Yue Lanry Yung

A genetically encoded fluorescent protein sensor enabled monitoring the “Trojan-horse” type cytotoxicity of silver nanoparticles.


Sensors ◽  
2019 ◽  
Vol 20 (1) ◽  
pp. 146
Author(s):  
Shruti Singh ◽  
Maheshwar Prasad Sharma ◽  
Abdulaziz A. Alqarawi ◽  
Abeer Hashem ◽  
Elsayed Fathi Abd_Allah ◽  
...  

Isoleucine is one of the branched chain amino acids that plays a major role in the energy metabolism of human beings and animals. However, detailed investigation of specific receptors for isoleucine has not been carried out because of the non-availability of a tool that can monitor the metabolic flux of this amino acid in live cells. This study presents a novel genetically-encoded nanosensor for real-time monitoring of isoleucine in living cells. This nanosensor was developed by sandwiching a periplasmic binding protein (LivJ) of E. coli between a fluorescent protein pair, ECFP (Enhanced Cyan Fluorescent Protein), and Venus. The sensor, named GEII (Genetically Encoded Isoleucine Indicator), was pH stable, isoleucine-specific, and had a binding affinity (Kd) of 63 ± 6 μM. The GEII successfully performed real-time monitoring of isoleucine in bacterial and yeast cells, thereby, establishing its bio-compatibility in monitoring isoleucine in living cells. As a further enhancement, in silico random mutagenesis was carried out to identify a set of viable mutations, which were subsequently experimentally verified to create a library of affinity mutants with a significantly expanded operating range (96 nM–1493 μM). In addition to its applicability in understanding the underlying functions of receptors of isoleucine in metabolic regulation, the GEII can also be used for metabolic engineering of bacteria for enhanced production of isoleucine in animal feed industries.


2006 ◽  
Vol 175 (4S) ◽  
pp. 521-521
Author(s):  
Motoaki Saito ◽  
Tomoharu Kono ◽  
Yukako Kinoshita ◽  
Itaru Satoh ◽  
Keisuke Satoh

2001 ◽  
Vol 11 (PR3) ◽  
pp. Pr3-1175-Pr3-1182 ◽  
Author(s):  
M. Losurdo ◽  
A. Grimaldi ◽  
M. Giangregorio ◽  
P. Capezzuto ◽  
G. Bruno

2014 ◽  
Author(s):  
Rozaimi Ghazali ◽  
◽  
Asiah Mohd Pilus ◽  
Wan Mohd Bukhari Wan Daud ◽  
Mohd Juzaila Abd Latif ◽  
...  

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 101-LB
Author(s):  
ABHINAV BHUSHAN ◽  
SONALI J. KARNIK

2017 ◽  
Vol 4 (4) ◽  
pp. 20
Author(s):  
KAVITHA T. ◽  
PREETHI D. LAVANYA ◽  
SARANYA S. ◽  
ANCY EVERT P.M. JONAH ◽  
◽  
...  

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