Li, Hengyi
Zhang, Jianan
Li, Tongqing https://orcid.org/0000-0002-5272-4380
Wang, Yueyue
Alarcón, Claudio R. https://orcid.org/0000-0003-2429-1378
Klein, Daryl E. https://orcid.org/0000-0002-7188-0450
Article History
Received: 4 October 2025
Accepted: 29 January 2026
First Online: 17 February 2026
Competing interests
: The authors have filed a patent application (Yale University, D.E.K., H.L. and C.R.A., PCT/US25/56600, Pending) related to the antibody sequences of RX5 and CT4 described in this manuscript. The patent application covers anti-ROS1 extracellular domain targeting antibodies (and derivatives) identified by phage display, including epitope-specific binders described in the manuscript, and their proposed use for modulating ROS1 signaling for potential therapeutic/diagnostic applications; the manuscript reports their discovery and use in structural and mechanistic studies of ROS1 activation. The other authors declare no competing interests.