Best Niche Antibody-based Biologics


SSB-4, a Non-Antibody Inhibitor Blocks Binding of SARS-CoV-2  to ACE2


SSB-4 is a non-antibody biologics specifically engineered for blocking the infection of the coronavirus SARS-CoV-2 by abolishing interaction between viral spike protein with ACE2 which is the gateway of virus entry into human cells. Our candidate molecule contains all human sequence, exhibits a single digit nanomolar affinity, and is highly efficacious in blocking pseudovirus infection on ACE2 expression cells.


If you are interested in SSB-4 project, please contact us.



Recombinant protein as a Pan Fc Receptor Interacting molecule

PD-L1 Decoy

Development of a high-affinity PD-L1 decoy protein as a therapeutic molecule.


Massive antibody mining, an unique platform for accelerating R&D timelines of therapeutic antibodies.