12/01/2025
Biortus is proud to announce the successful determination of the human adenosine receptor A3AR in complex with the ligand CF101 in its active conformation at an outstanding 2.81 Å resolution using cryo-electron microscopy (Cryo-EM).
The A3AR–CD39 signaling axis plays a critical role in brain repair associated with vascular dementia (VaD). CF101 (Piclidenoson)—a selective A3AR agonist currently in Phase III clinical trials for psoriasis—has demonstrated the ability to promote brain tissue regeneration and improve memory and motor function, pointing to a promising therapeutic strategy for VaD.
The A3AR–CF101 cryo-EM structure solved by Biortus (EMD-66627, 2.81 Å) is the highest-resolution structure available in this receptor family within the EMDB. The map resolves side-chain interactions within the A3AR binding pocket with exceptional clarity, revealing how CF101 engages and activates the receptor—providing an important structural framework for understanding CF101-mediated signaling and receptor activation.
This achievement further strengthens Biortus’s position as a global leader in structural biology and drug discovery. As the world’s largest commercial Cryo-EM facility, Biortus is equipped with multiple Titan Krios G4 instruments, supported by Glacios, Talos, and TF20 platforms, and a team of expert scientists experienced in solving atomic-resolution structures of large and complex biomolecules.
🔬 Want to explore more of our Cryo-EM work?
Contact us at [email protected], or visit the Biortus YouTube channel to explore our Cryo-EM playlist and other high-resolution breakthroughs: 👉 https://www.youtube.com//playlists