ArticleStructural dynamics (Melville, N.Y.)2016
Femtosecond infrared spectroscopy of channelrhodopsin-1 chromophore isomerization.
Article in Structural dynamics (Melville, N.Y.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- A red-light gate for a cation channel: The conducting state of channelrhodopsin-1 from Chlamydomonas augustae.Biophysical journal · 2026Article
- Time-resolved photoacoustics of channelrhodopsins: early energetics and light-driven volume changes.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2023Article
- Time-resolved infrared absorption spectroscopy applied to photoinduced reactions: how and why.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2022Review
- Ultrafast Backbone Protonation in Channelrhodopsin-1 Captured by Polarization Resolved Fs Vis-pump-IR-Probe Spectroscopy and Computational Methods.Molecules (Basel, Switzerland) · 2020Article
- Reaction dynamics of the chimeric channelrhodopsin C1C2.Scientific reports · 2017Article
- Preface to the Special Edition on Femtochemistry and "The Hamburg Conference on Femtochemistry 2015 (FEMTO12)".Structural dynamics (Melville, N.Y.) · 2016Article
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Authors and funding
6 authors.
Funding
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Abstract
Vibrational dynamics of the retinal all-trans to 13-cis photoisomerization in channelrhodopsin-1 from Chlamydomonas augustae (CaChR1) was investigated by femtosecond visible pump mid-IR probe spectroscopy. After photoexcitation, the transient infrared absorption of C-C stretching modes was detected. The formation of the 13-cis photoproduct marker band at 1193 cm(-1) was observed within the time resolution of 0.3 ps. We estimated the photoisomerization yield to (60 ± 6) %. We found additional time constants of (0.55 ± 0.05) ps and (6 ± 1) ps, assigned to cooling, and cooling processes with a back-reaction pathway. An additional bleaching band demonstrates the ground-state heterogeneity of retinal.
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