Mario Moronne - Berkeley CA, US Deborah Charych - Albany CA, US Jon Nagy - Bozeman MT, US
Assignee:
Regents of the University of California - Oakland CA
International Classification:
C12Q001/70 C12Q001/68 G01N033/53 G01N033/543
US Classification:
435/006000, 435/007100, 436/518000, 435/005000
Abstract:
The present invention relates to methods and compositions for the detection of analytes using the fluorescence that occurs in polymeric material in response to selective binding of analytes to the polymeric materials. In particular, the present invention allows for the fluorescent detection of membrane modifying reactions and analytes responsible for such modifications and for the screening of reaction inhibitors.
Ehud Y. Isacoff - Berkeley CA Lidia M. Mannuzzu - Berkeley CA Mario M. Moronne - Berkeley CA
Assignee:
The Regents of the University of California - Oakland CA
International Classification:
C12N 500 C12N 120 C12N 300 C12N 114
US Classification:
435325
Abstract:
The invention provides protein-based sensors which report changes at a cell surface membrane. These sensors comprise an endogenous cell surface protein having a post-translationally generated luminescer at a predetermined residue. In operation, the protein adopts one of a plurality of different interconvertable signal-dependent conformations, whereunder the luminescer provides corresponding different luminescence. The cells comprise transgenes encoding the protein sensor which is translated from such transgenes by the host cell's machinery with natural amino acids and expressed on the cell surface. After surface expression, the cell is contacted with a luminescer generating reagent which generates a luminescer at a predetermined residue of the protein. A wide variety of luminescers and chemistries for generating the selected luminescer at the target residue of the sensor protein may be used.