Depiction courtesy of the Indigo Toolkit. Enter a chemical name into the box and then click submit. The chemical structure described by the name, or why it could not be interpreted, will appear here.

Animal opsins are G-protein-coupled receptors and a group of proteins made light-sensitive via a chromophore, typically retinal. When bound to retinal, opsins become retinylidene proteins, but are usually still called opsins regardless. Most prominently, they …

Jun 3, 2005 · Opsins, G-protein-coupled receptors including rhodopsin, are found in animals, and more than a thousand have been identified so far. Most opsins act as pigments that activate G proteins in a light-dependent manner in both visual and non-visual systems.

OPSIN is a Java library for IUPAC name-to-structure conversion offering high recall and precision on organic chemical nomenclature. Java 8 (or higher) is required for OPSIN 2.8.0. Supported outputs are SMILES, CML (Chemical Markup Language) and InChI (IUPAC International Chemical Identifier)

Opsin is a protein that is a prime candidate for detecting photoperiod in birds and is co-expressed with certain neurosecretory neurons involved in regulating hormones. AI generated definition based on: Frontiers in Neuroendocrinology, 2015

Jun 3, 2005 · The photosensitive molecule rhodopsin and its relatives consist of a protein moiety - an opsin - and a non-protein moiety - the chromophore retinal. Opsins, which are G-protein-coupled receptors (GPCRs), are found in animals, and more than a …

Mar 1, 2005 · Opsins are membrane proteins with molecular masses of 30-50 kDa that are related to the protein moiety of the photoreceptive molecule rhodopsin; they typically act as light sensors in animals [1 – 4].

Opsins are the universal photoreceptor molecules of all visual systems in the animal kingdom. They can change their conformation from a resting state to a signalling state upon light absorption, which activates the G protein, thereby resulting in a signalling cascade that produces physiological responses.

In this review we explore light reception, opsin expression and signaling in skin cells; and compile data elucidating potential functions for human OPN3 in skin, with emphasis on recent studies investigating OPN3 regulation of melanin within epidermal melanocytes.

Feb 10, 2022 · Opsins, the protein moieties of animal visual photo-pigments, have emerged as moonlighting proteins with diverse, light-dependent and -independent physiological functions. This raises the need to revise some basic assumptions concerning opsin expression, structure, classification, and evolution.