… pigmentary system to ultraviolet light prompted the conclusion that the assay of 5-S-cysteinyldopa …
Measurement of levels of dopa and catecholamine in blood cells and plasma has also …

… Jakob Henle identified pigment cells in the human epidermis… , resulting in the formation of
2-S- and 5-S-cysteinylDOPA (CD)… DQ, leading to the formation of CD-quinones and DOPA (3,4-…

… in pigment cells, there are also melanin-like pigments in the … From the biodiversity
point of view, melanin-based pigmentation is … Pulse radiolysis of dopa with added 5-S-cysteinyldopa …

… formation of dopaquinone with CySH or GSH, leading to the production of CyS-dopa or
GS-dopa… or medium (100 μl), and an internal standard 1.5 μM α-methyl-5-S-cysteinyldopa (MeCD…

… In this respect, the precursor of phaeomelanin 5-S-cysteinyldopa (5s-CD) … of L-DOPA does
result in a dark pigmentation of the … Previously, we have shown the intracellular presence of 5,…

… via the oxidative polymerization of 5-S-cysteinyldopa (5SCD). … melanin pigments, determining
black pigmentation was first … DOPA (DOPA-eumelanin) has no detectable effect on DOPA …

… form eumelanin, and hence breakdown of hydrogen peroxide … other cell types, have a high
background level of dopachrome … In contrast, the level of 5-Scysteinyldopa, produced by the …

… melanin, a protective pigment formed by different mechanisms … due to possible undesirable
reactions with other intracellular … of neuromelanin formation through 5-cysteinyl-dopa is just a …

… However, dopaminergic SN c cells are normally pigmented … result in heavier pigmentation
of dying SN c cells. However, … These responses would lead to elevated extracellular levels …

… which associate in dark brown pigments. In fungi, tyrosinases … , and in browning and
pigmentation. First characterized from … formation of gluten‐bound 5‐S‐cysteinylDOPA and …