Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
研究内容(pdf)
1.
Development of fluorescent ATP
biosensors for quantitative imaging of
extracellular ATP
Sui Nishiyama, Ryuta Iwakiri, Akira Kakizuka, Hiromi Imamura!
(Graduate School of Biostudies, Kyoto University, Japan)!
2. Importance of extracellular ATP signaling
Dynamic behavior of extracellular ATP is not understood well.
cytoplasm
P2X receptor P2Y receptor
signal transduction
extracellular!
space
ATP
・exocytosis!
・channel!
etc…
ATP ADP AMP Adenosine
development, immunity, neurotransmission, etc…
4. Known problems with “QUEEN” to measure extracellular ATP
・Slow binding rate to ATP!
・Low photostability
ATP level in single bacterial cellsExcitation spectra
5. Improvement of binding rate
Flexible loop far away "
from ATP binding site
Structure of ε subunit
By limit flexibility with disulfide bond,!
we tried to increase binding rate.
NTDCTD