… since pigmentation does not increase with progressive age. … or almost all dopa and 5-S-cysteinyldopa
is present in the cytoplasm favour the hypothesis that these pigment precursors. …

… of dopa was 0.9 pM and of 5-S-cysteinyldopa was 190 pM. 5-S-… found the concentration of
5-S-cysteinyldopa to be more than … The intracellular metabolism of cysteine is highly integrated …

… ), suggests that, at least in melanoma cells, the intracellular y-GTP … in comparison with
non-pigment cell tumors and its urinary … dopa-loading on glutathione-dependent 5-S-cysteinyldopa …

… pigment cells by modulating the levels of substrates and by the use of specific inhibitors. We
also studied the intracellular … inhibit dopa-glutathione dependent 5-S·cysteinyldopa genesis …

… of 5-S-cysteinyldopa (an intermediate pigment metabolite), … with irregular margins and
variable pigmentation. c) Nodular … of L-dopa treatment on 5-S-cysteinyldopa and on melanoma …

… is closely related to skin pigmentation since melanin, especially … DOPA and 5SCD are
present in the hydrolysis products of the liver and kidney, which do not produce melanin pigments …

… the conversion of tyrosine to dopa and thence to dopaquinone … Melanocytes are also influenced
by extracellular factors that … pigmentary diseases that give rise to abnormal pigmentation …

… in extracellular proteins, PB-DOPA and other DOPA-polymers … , and the pigment epithelial
cells of the retina. Melanins contain … protein the main product is 5-S-cysteinyldopa (5SCD) [36]. …

… physiology of the cells as revealed by growth and pigmentation. It was … 5-S cysteinyldopa
in malignant melanoma in vivo: Produc- tion, excretion and regulatory factors, in Pigment cell …

… Results of the determination of 5-S-cysteinyldopa and DOPA in … No pigmentation Was
observed on the cut surfaces. The … , pigmented nevus, and pigmented basal cell epithelioma …