Using FRET-Based Fluorescent Sensors to Monitor Cytosolic and Membrane-Proximal Extracellular ATP Levels.

Autor: Kaschubowski KE; Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany., Kraft AE; Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf, Hamburg, Germany., Nikolaev VO; Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf, Hamburg, Germany., Haag F; Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. haag@uke.de.
Jazyk: angličtina
Zdroj: Methods in molecular biology (Clifton, N.J.) [Methods Mol Biol] 2020; Vol. 2041, pp. 223-231.
DOI: 10.1007/978-1-4939-9717-6_16
Abstrakt: The assessment of local concentrations of extracellular ATP (eATP) at the site of receptor binding remains a challenge in the field of purinergic signaling. In many cases, biosensors exploiting the principle of Förster resonance energy transfer (FRET) have provided useful tools to visualize local concentrations of metabolites. A series of FRET-based biosensors based on the epsilon subunits of bacterial ATP synthases have been described for the visualisation of ATP. These sensors carry ATP-sensing units with different affinities for ATP, permitting imaging of ATP under the widely different concentration conditions found in subcellular locations such as the cytoplasm and the membrane-proximal extracellular space.
Databáze: MEDLINE