Methods for identifying chemical modulators of Ras superfamily GTPase activity
US7807400B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2005 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Apr 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2500/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a method of identifying a compound having the ability to modulate the guanine nucleotide exchange cycle of a Ras superfamily GTPase, comprising: a) contacting the compound with a guanine nucleotide exchange factor and a GTPase and obtaining a baseline fluorescence measurement; b) contacting the guanine nucleotide exchange factor and the GTPase without the compound and obtaining a baseline fluorescence measurement; c) adding a fluorophore-conjugated GTP to the components of (a) and (b), respectively; d) obtaining fluorescence measurements of the respective components of (c) over time; e) subtracting the respective baseline fluorescence measurements of (a) and (b) from each fluorescence measurement of (d); and f) comparing the resulting fluorescence values of (e), wherein a decrease or increase in the rate of fluorescence change with the compound as compared with the rate of fluorescence change without the compound identifies a compound having the ability to modulate the guanine nucleotide exchange cycle of a Ras superfamily GTPase. Further provided are compounds of the invention and pharmaceutical compositions comprising compounds of the invention usef…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.