An optogenetic tool called Opto-OGT has been developed that enables researchers to probe pathways involving modifications with O-linked β-N-acetylglucosamine (O-GlcNAc) such as OGT, mTOR and AMPK signaling with high spatiotemporal precision. The method is based on fusing a photosensitive cryptochrome protein to an O-GlcNAc transferase and enables OGT to be reversibly activated with blue light.
- Qunxiang Ong
- Ler Ting Rachel Lim
- Xiaoyong Yang
