Nature CommunicationsBridge helix of Cas12a is an allosteric regulator of R-loop formation and RuvC activationChhandosee GangulySwarmistha Devi AribamAlberto Monteiro dos SantosLindsie MartinLeonard M. ThomasYihan ShaoRakhi Rajan2026-01-28Full textDOI https://doi.org/10.1038/s41467-026-68657-0