wtfEx496 [pAS3-rig-3p::AI::gur-3G::SL2::tagRFP::unc-54 3'UTR + pAS3-rig-3p::AI::prdx-2G::SL2::tagBFP::unc-54 3'UTR]. Pick animals either BFP or RFP expression in head neurons to maintain. Keep plates covered to avoid unnecessary exposure to light. This strain expresses a purple light-sensitive optogenetic protein system (i.e., GUR-3 and PRDX-2) alongside fluorescent proteins tagBFP and tagRFP in command interneurons AVA, and nearby pharyngeal neurons I1, I4, M4, NSM using rig-3 promoter. Worms exhibit higher reversal rate on exposing to blue light (peak value ~470) compared to controls. Reference: Randi F, et al. Nature 2023 Nov;623(7986):406-414. doi: 10.1038/s41586-023-06683-4. PMID: 37914938.