ArticleProceedings of the National Academy of Sciences of the United States of America2004
Bistable UV pigment in the lamprey pineal.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.
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Who cites it
80 citing papers in PubMed, 162 citations in OpenAlex.
- From pineal photoreception to optogenetics: functional colour opponency based on a pineal bistable opsin.Eye and vision (London, England) · 2026Review
- Neural circuits for decision-making based on pineal photoreception in zebrafish.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Novel GαGTP Sensors Reveal Endogenous and Subcellular G Protein Signaling Dynamics.bioRxiv : the preprint server for biology · 2026Article
- Dragonfly red opsins share a common tuning mechanism with mammalian red opsins and further enhancement of near-infrared sensitivity.Cellular and molecular life sciences : CMLS · 2026Article
- The photoreceptive and neuroendocrine pineal organ of Atlantic salmon.Frontiers in physiology · 2026Article
- Article
- Evolution of Pineal Nonvisual Opsins in Lizards and the Tuatara and Identification of Lepidopsin: A New Opsin Gene.Genome biology and evolution · 2025Article
- Optogenetic engineering for ion channel modulation.Current opinion in chemical biology · 2025Review
- An Extensive Survey of Vertebrate-specific, Nonvisual Opsins Identifies a Novel Subfamily, Q113-Bistable Opsin.Genome biology and evolution · 2025Article
- Light intensity-dependent arrestin switching for inactivation of a light-sensitive GPCR, bistable opsin.iScience · 2025Article
- Review
- In-silico predicted mouse melanopsins with blue spectral shifts deliver efficient subcellular signaling.Cell communication and signaling : CCS · 2024Article
- A bistable inhibitory optoGPCR for multiplexed optogenetic control of neural circuits.Nature methods · 2024Article
- Optical Approaches for Investigating Neuromodulation and G Protein-Coupled Receptor Signaling.Pharmacological reviews · 2023Review
- Optogenetic manipulation of Gq- and Gi/o-coupled receptor signaling in neurons and heart muscle cells.eLife · 2023Article
- A bistable inhibitory OptoGPCR for multiplexed optogenetic control of neural circuits.bioRxiv : the preprint server for biology · 2023Article
- A self-inactivating invertebrate opsin optically drives biased signaling toward Gβγ-dependent ion channel modulation.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Functional diversity and evolution in animal rhodopsins: Report for the session 11.Biophysics and physicobiology · 2023Article
- Deep Diversity: Extensive Variation in the Components of Complex Visual Systems across Animals.Cells · 2022Review
- High-performance optical control of GPCR signaling by bistable animal opsins MosOpn3 and LamPP in a molecular property-dependent manner.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
20 more citing papers are in PubMed but not listed here.
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Lower vertebrates can detect UV light with the pineal complex independently of eyes. Electrophysiological studies, together with chromophore extraction analysis, have suggested that the underlying pigment in the lamprey pineal exhibits a bistable nature, that is, reversible photoreaction by UV and visible light, which is never achieved by known UV pigments. Here we addressed the molecular identification of the pineal UV receptor. Our results showed that the long-hypothesized pigment is a lamprey homologue of parapinopsin, which exhibits an absorption maximum at 370 nm, in the UV region. UV light causes cis-trans isomerization of its retinal(2) chromophore, forming a stable photoproduct having an absorption maximum at 515 nm, in the green region. The photoproduct reverts to the original pigment upon visible light absorption, showing photoregeneration of the pigment. In situ hybridization showed that parapinopsin is selectively expressed in the cells located in the dorsal region of the pineal organ. We successfully obtained the hyperpolarizing responses with a maximum sensitivity of approximately 380 nm from the photoreceptor cells at the dorsal region, in which the outer segment was clearly stained with anti-parapinopsin antibody. These results demonstrated that parapinopsin is the pineal UV pigment having photointerconvertible two stable states. The bistable nature of the parapinopsin can account for the photorecovery of the pineal UV sensitivity by background green light in the lamprey. Furthermore, we isolated the parapinopsin homologues from fish and frog pineal complexes that exhibit UV sensitivity, suggesting that parapinopsin is a common molecular basis for pineal UV reception in the vertebrate.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.