A homogeneous fluorometric assay platform based on novel synthetic proteins
- Department of Molecular Biosciences and Bioengineering, University of Hawaii, 1955 East-West Road, Agricultural Sciences 218 Honolulu, HI 96822 (United States)
Novel synthetic recombinant sensor proteins have been created to detect analytes in solution, in a rapid single-step 'mix and read' noncompetitive homogeneous assay process, based on modulating the Foerster resonance energy transfer (FRET) property of the sensor proteins upon binding to their targets. The sensor proteins comprise a protein scaffold that incorporates a specific target-capturing element, sandwiched by genetic fusion between two molecules that form a FRET pair. The utility of the sensor proteins was demonstrated via three examples, for detecting an anti-biotin Fab antibody, a His-tagged recombinant protein, and an anti-FLAG peptide antibody, respectively, all done directly in solution. The diversity of sensor-target interactions that we have demonstrated in this study points to a potentially universal applicability of the biosensing concept. The possibilities for integrating a variety of target-capturing elements with a common sensor scaffold predict a broad range of practical applications.
- OSTI ID:
- 20991531
- Journal Information:
- Biochemical and Biophysical Research Communications, Vol. 361, Issue 1; Other Information: DOI: 10.1016/j.bbrc.2007.06.174; PII: S0006-291X(07)01422-2; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0006-291X
- Country of Publication:
- United States
- Language:
- English
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