Time-resolved fluorescence resonance energy transfer as a versatile tool in the development of homogeneous cellular kinase assays.
Assay Drug Dev Technol
; 10(6): 551-7, 2012 Dec.
Article
in En
| MEDLINE
| ID: mdl-22428805
ABSTRACT
Homogeneous cellular assays can streamline product detection in the drug discovery process. One commercially available assay employing time-resolved fluorescence resonance energy transfer (TR-FRET) that detects phosphorylated products was used to evaluate inhibitors of the receptor tyrosine kinase AXL in a cell line expressing an AXL-green fluorescent protein fusion protein. This TR-FRET assay was modified to evaluate the phosphorylation state of the AXL family member MER in a cell line expressing MER with a V5 tag by adding a fluorescein-labeled anti-V5 antibody. This homogeneous cellular assay was further modified to evaluate the nonreceptor tyrosine kinase focal adhesion kinase (FAK) in cell lines that expressed an untagged kinase by the inclusion of a commercially available anti-FAK antibody conjugated with an acceptor dye. The methods described here can be further adapted for TR-FRET detection of other cellular kinase activities.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phosphotransferases
/
Fluorescence Resonance Energy Transfer
/
Enzyme Inhibitors
Limits:
Humans
Language:
En
Journal:
Assay Drug Dev Technol
Journal subject:
FARMACOLOGIA
Year:
2012
Document type:
Article
Affiliation country:
Estados Unidos