US Patent:
20210403524, Dec 30, 2021
Inventors:
- Cambridge MA, US
Daniel HICKLIN - Montclair NJ, US
Vinay BHASKAR - San Francisco CA, US
Luke EVNIN - San Francisco CA, US
Patrick BAEUERLE - Gauting, DE
Jose Andres SALMERON GARCIA - Westminster MA, US
Heather BRODKIN - West Newton MA, US
International Classification:
C07K 14/55
A61P 35/00
C07K 16/28
Abstract:
The disclosure features fusion proteins that are conditionally active variants of IL-2. In one aspect, the full-length polypeptides of the invention have reduced or minimal cytokine-receptor activating activity even though they contain a functional cytokine polypeptide. Upon activation, e.g., by cleavage of a linker that joins a blocking moiety, e.g., a steric blocking polypeptide, in sequence to the active cytokine, the cytokine can bind its receptor and effect signaling.