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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Research, Technology, Methods > chemical substances > biochemical compounds > amino acids, peptides and proteins > proteins > animal proteins > opsin
Fields of Study > biochemistry > biochemical compounds > amino acids, peptides and proteins > proteins > animal proteins > opsin
Research, Technology, Methods > chemical substances > biochemical compounds > pigments > opsin
Fields of Study > biochemistry > biochemical compounds > pigments > opsin
Preferred Term:

opsin

Definition:
Photosensitive proteins in the membranes of photoreceptor cells such as the rods and the cones. Opsins have varied light absorption properties and are members of the G-protein-coupled receptors family. Their ligands are vitamin A-based chromophores.
Concept Schemes:
NALT Full
Broader Concept:
pigments, animal proteins
Narrower Concepts:
Related Concepts:
URI:
https://lod.nal.usda.gov/nalt/192484
Download this Concept:
RDF/XMLCreated 2012-10-23, last modified 2013-10-30