MeSH Browser

MeSH Heading: Opsins
Tree Number(s): D12.776.306.466; D23.767.930.750
Unique ID: D055355
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D055355
Scope Note: 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.
Entry Term(s): Opsin
Previous Indexing: Opsin (1993-2008); Retinal Pigments (1977-1992)
Public MeSH Note: 2009; for OPSIN see OPSIN 1993-2008
History Note: 2009; for OPSIN use OPSIN 1993-2008
Date Established: 2009/01/01
Date of Entry: 2008/07/08
Revision Date: 1955/01/01

Allowable Qualifiers: administration & dosage (AD)

adverse effects (AE)

agonists (AG)

analysis (AN)

antagonists & inhibitors (AI)

biosynthesis (BI)

blood (BL)

cerebrospinal fluid (CF)

chemical synthesis (CS)

chemistry (CH)

classification (CL)

deficiency (DF)

drug effects (DE)

economics (EC)

genetics (GE)

history (HI)

immunology (IM)

isolation & purification (IP)

metabolism (ME)

pharmacokinetics (PK)

pharmacology (PD)

physiology (PH)

poisoning (PO)

radiation effects (RE)

standards (ST)

supply & distribution (SD)

therapeutic use (TU)

toxicity (TO)

ultrastructure (UL)

urine (UR)

Opsins MeSH Descriptor Data 2025