Vertebrate ultraviolet visual pigments: Protonation of the retinylidene Schiff base and a counterion switch during photoactivation
For visual pigments, a covalent bond between the ligand (11-cis-retinal) and receptor (opsin) is crucial to spectral tuning and photoactivation. All photoreceptors have retinal bound via a Schiff base (SB) linkage, but only UV-sensitive cone pigments have this moiety unprotonated in the dark. We inv...
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| 發表在: | Proc Natl Acad Sci U S A |
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| Principais autores: | , , , , , |
| 格式: | Artigo |
| 語言: | Inglês |
| 出版: |
National Academy of Sciences
2004
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| 主題: | |
| 在線閱讀: | https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC327121/ https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/14732701/ https://ncbi.nlm.nih.govhttps://doi.org/10.1073/pnas.0305206101 |
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