An Information Portal to 111558 Biological Macromolecular Structures

RTL is found in 25 entries
  •   Chemical Component Summary   Hide
    Name RETINOL
    Identifiers (4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexenyl)nona-2,4,6,8-tetraen-1-ol
    Formula C20 H30 O
    Molecular Weight 286.45 g/mol
    Type non-polymer
    Isomeric SMILES
  •   Drug Info: DrugBank Hide
    DrugBank ID DB00162   (Stereoisomeric match)
    Name Vitamin A
    • approved
    • nutraceutical
    Description Retinol and derivatives of retinol that play an essential role in metabolic functioning of the retina, the growth of and differentiation of epithelial tissue, the growth of bone, reproduction, and the immune response. Dietary vitamin A is derived from a variety of carotenoids found in plants. It is enriched in the liver, egg yolks, and the fat component of dairy products. [PubChem]
    • (2e,4e,6e,8e)-3,7-Dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraen-1-ol
    • all-trans-retinol
    • all-trans-retinyl alcohol
    • all-trans-vitamin A alcohol
    • Alphalin
    • Chocola a
    • Retinol
    • Vitamin a
    • Vitamin A1
    Salts Vitamin A palmitate
    Brand names Aquasol A
    Affected organism Humans and other mammals
    Indication For the treatment of vitamin A deficiency.
    Pharmacology Vitamin A is effective for the treatment of Vitamin A deficiency. Vitamin A refers to a group of fat-soluble substances that are structurally related to and possess the biological activity of the parent substance of the group called all-trans retinol or retinol. Vitamin A plays vital roles in vision, epithelial differentiation, growth, reproduction, pattern formation during embryogenesis, bone development, hematopoiesis and brain development. It is also important for the maintenance of the proper functioning of the immune system.
    Mechanism of action Vision:Vitamin A (all-trans retinol) is converted in the retina to the 11-cis-isomer of retinaldehyde or 11-cis-retinal. 11-cis-retinal functions in the retina in the transduction of light into the neural signals necessary for vision. 11-cis-retinal, while attached to opsin in rhodopsin is isomerized to all-trans-retinal by light. This is the event that triggers the nerve impulse to the brain which allows for the perception of light. All-trans-retinal is then released from opsin and reduced to all-trans-retinol. All-trans-retinol is isomerized to 11-cis-retinol in the dark, and then oxidized to 11-cis-retinal. 11-cis-retinal recombines with opsin to re-form rhodopsin. Night blindness or defective vision at low illumination results from a failure to re-synthesize 11-cis retinal rapidly.
    Epithelial differentiation: The role of Vitamin A in epithelial differentiation, as well as in other physiological processes, involves the binding of Vitamin A to two families of nuclear retinoid receptors (retinoic acid receptors, RARs; and retinoid-X receptors, RXRs). These receptors function as ligand-activated transcription factors that modulate gene transcription. When there is not enough Vitamin A to bind these receptors, natural cell differentiation and growth are interrupted.
    Route of administration intramuscular
    • Vitamins
    • Vitamin A
    • Anti-Acne Preparations
    • D10AD02
    • R01AX02
    • S01XA02
    AHFS-Code 88:04.00
    CAS number 68-26-8
    Name Sequence search Pharmacological action Actions
    Dehydrogenase/reductase SDR family member 4   Search  unknown
    Retinol-binding protein 3   Search  unknown
    Retinol-binding protein 1   Search  unknown
    Retinal dehydrogenase 2   Search  unknown
    Retinal dehydrogenase 1   Search  unknown
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