Excited-state dynamics of all-trans protonated retinal Schiff base in CRABPII-based rhodopsin mimics.

ABSTRACT: The rhodopsin mimic is a chemically synthetized complex with retinyl Schiff base (RSB) formed between protein and the retinal chromophore that can mimic the natural rhodopsin-like protein. The artificial rhodopsin mimic is more stable and designable than the natural protein and hence has wider uses in photon detection devices. The mimic structure RSB, like the case in the actual rhodopsin-like protein, undergoes isomerization and protonation throughout the photoreaction process. As a result, understanding the dynamics of the RSB in the photoreaction process is critical. In this study, the ultrafast transient absorption spectra of three mutants of the cellular retinoic acid-binding protein II-based rhodopsin mimic at acidic environment were recorded, from which the related excited-state dyn

SUBMITTER: Li G 

PROVIDER: S-EPMC9675042 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature