Inventors:
William Kaelin - Boston MA, US
David Livingston - Brookline MA, US
Tae-You Kim - Seoul, KR
International Classification:
A61K049/00, A01K067/027
US Classification:
800/018000, 424/009200, 424/009600, 800/003000
Abstract:
Light-generating fusion proteins having a ligand binding site and a light-generating polypeptide moiety and their use as diagnostics, in drug screening and discovery, and as therapeutics, are disclosed. The light-generating fusion protein has a feature where the bioluminescence of the polypeptide moiety changes upon binding of a ligand at the ligand binding site. The ligand may be, for example, an enzyme present in an environment only under certain conditions, e.g., ubiquitin ligase in a hypoxic state, such that the light-generating fusion protein is “turned on” only under such conditions.