Article ; Online: Molecular determinants of response kinetics of mouse M1 intrinsically-photosensitive retinal ganglion cells.
2021 Volume 11, Issue 1, Page(s) 23424
Abstract: Intrinsically-photosensitive retinal ganglion cells (ipRGCs) are non-rod/non-cone retinal photoreceptors expressing the visual pigment, melanopsin, to detect ambient irradiance for various non-image-forming visual functions. The M1-subtype, amongst the ... ...
Abstract | Intrinsically-photosensitive retinal ganglion cells (ipRGCs) are non-rod/non-cone retinal photoreceptors expressing the visual pigment, melanopsin, to detect ambient irradiance for various non-image-forming visual functions. The M1-subtype, amongst the best studied, mediates primarily circadian photoentrainment and pupillary light reflex. Their intrinsic light responses are more prolonged than those of rods and cones even at the single-photon level, in accordance with the typically slower time course of non-image-forming vision. The short (OPN4S) and long (OPN4L) alternatively-spliced forms of melanopsin proteins are both present in M1-ipRGCs, but their functional difference is unclear. We have examined this point by genetically removing the Opn4 gene (Opn4 |
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MeSH term(s) | Animals ; Circadian Rhythm/physiology ; Dependovirus ; Intravitreal Injections ; Kinetics ; Light ; Light Signal Transduction ; Mice ; Mice, Transgenic ; Mutation ; Neurosciences ; Phosphorylation ; Retinal Cone Photoreceptor Cells/metabolism ; Retinal Ganglion Cells/metabolism ; Rod Opsins/chemistry ; Signal Transduction ; Vision, Ocular ; beta-Arrestins/chemistry |
Chemical Substances | Rod Opsins ; beta-Arrestins ; melanopsin |
Language | English |
Publishing date | 2021-12-06 |
Publishing country | England |
Document type | Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2615211-3 |
ISSN | 2045-2322 ; 2045-2322 |
ISSN (online) | 2045-2322 |
ISSN | 2045-2322 |
DOI | 10.1038/s41598-021-02832-9 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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