Self-regenerating opsin from reef-building coral
Yusuke Sakai, Yasushi Imamoto, Shino Inukai, Yuri Tominaga, Tomohiro Sugihara, Takahiro Yamashita, Kota Katayama, Yukiya Kakeyama, Ririka Oka, Erika Okuno, Makoto Iwasaki, Hideki Kandori, Mitsumasa KOYANAGI, Akihisa Terakita
This paper identifies a coral opsin, AtAntho2c, that can autonomously regenerate its inactive state through thermal isomerization of retinal, enabling repeated light responses without exogenous retinal.
bioRxiv · May 28, 2026 · PreprintBiophysics