<em>trans</em>-<wbr/>Urocanic Acid

trans–Urocanic Acid

CAT N°: 16228
Price:

From 55.00 46.75

trans-Urocanic acid is a major epidermal chromophore for the immunosuppressive effects of UV radiation that is produced in mammalian stratum corneum by the action of histidine ammonialyase on L-histidine.{26632} It contributes to the acidification of the surface of the stratum corneum, and its function has been proposed as that of an endogenous sunscreen, endowing a low-level of protection (SPF ~ 1.5) against UV-induced DNA damage and excessive keratinocyte apoptosis.{26632} Upon UVB exposure, trans-urocanic acid is converted to the cis isomer, which is known to activate regulatory T cells.{26631}

Territorial Availability: Available through Bertin Technologies only in France

  • Synonyms
    • 3-(1H-imidazol-5-yl)-2E-propenoic acid
  • Correlated keywords
    • 7699-?36-?7 739340-?22-?8 926068-?43-?1 104-98-3 photoprotective epidermis skin chromophores immunosuppression ultraviolet UV radiation stratum corneum L-histidine ammonia lyase histidine sunscreens DNA damages keratinocytes epidermal immunosuppressive mammals mammalian stratum corneum ammonialyase apoptosis UVB cis isomers regulatory T cells urocanic acids (E)-Urocanic repairs immunology metabolism
  • Product Overview:
    trans-Urocanic acid is a major epidermal chromophore for the immunosuppressive effects of UV radiation that is produced in mammalian stratum corneum by the action of histidine ammonialyase on L-histidine.{26632} It contributes to the acidification of the surface of the stratum corneum, and its function has been proposed as that of an endogenous sunscreen, endowing a low-level of protection (SPF ~ 1.5) against UV-induced DNA damage and excessive keratinocyte apoptosis.{26632} Upon UVB exposure, trans-urocanic acid is converted to the cis isomer, which is known to activate regulatory T cells.{26631}

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