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Organic Chemicals > Hydrocarbons > Terpenes > Diterpenes > Retinaldehyde
Biological Factors > Pigments, Biological > Carotenoids > Retinoids > Retinaldehyde
... > Organic Chemicals > Hydrocarbons > Hydrocarbons, Acyclic > Alkenes > Polyenes > Carotenoids > Retinoids > Retinaldehyde
... > Organic Chemicals > Hydrocarbons > Terpenes > Carotenoids > Retinoids > Retinaldehyde
... > Polycyclic Compounds > Macrocyclic Compounds > Cycloparaffins > Cyclohexanes > Cyclohexenes > Carotenoids > Retinoids > Retinaldehyde
... > Organic Chemicals > Hydrocarbons > Hydrocarbons, Cyclic > Hydrocarbons, Alicyclic > Cycloparaffins > Cyclohexanes > Cyclohexenes > Carotenoids > Retinoids > Retinaldehyde
Organic Chemicals > Aldehydes > Retinaldehyde

Preferred term

Retinaldehyde  

Type

  • Topical Descriptor

Broader concept

Entry terms

  • 3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-Nonatetraenal
  • Aldehydde, Retinyl
  • Aldehyde, Vitamin A
  • Axerophthal
  • Retinal
  • Retinene
  • Retinyl Aldehydde
  • Vitamin A Aldehyde

Note

  • /biosyn /physiol permitted

Scope note

  • A diterpene derived from the carotenoid VITAMIN A which functions as the active component of the visual cycle. It is the prosthetic group of RHODOPSIN (i.e., covalently bonded to ROD OPSIN as 11-cis-retinal). When stimulated by visible light, rhodopsin transforms this cis-isomer of retinal to the trans-isomer (11-trans-retinal). This transformation straightens-out the bend of the retinal molecule and causes a change in the shape of rhodopsin triggering the visual process. A series of energy-requiring enzyme-catalyzed reactions convert the 11-trans-retinal back to the cis-isomer.

History note

  • 91(75); was see under RETINOIDS 1984-90; was see under VITAMIN A 1968-83

In other languages

URI

http://www.yso.fi/onto/mesh/D012172

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