Electron spin resonance studies on phaeomelanins
DOI:
https://doi.org/10.2340/0001555559453456Abstract
ESR spectra of synthetic melanins formed from dopa and from 5-S-cysteinyldopa and of melanins isolated from human melanomas were studied. Alkali-soluble melanin synthesized from cysteinyldopa showed a signal similar to that of insoluble melanin synthesized from dopa, but also a simple fine structure. Trichochromes C and F synthesized from 5-S-cysteinyldopa had a broader signal than dopamelanin, and in addition a hyperfine structure that could be explained by the presence of manganous ions. An insoluble eumelanin from a human melanoma with a sulphur content of 5% showed an ESR spectrum consisting of one line like dopamelanin. An alkali-soluble phaeomelanin from a human melanoma with a sulphur content of 10% showed a very broad signal with a hyperfine structure that could be explained by the presence of manganous ions.Downloads
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Published
1979-09-01
How to Cite
Hansson, C., Agrup, G., Rorsman, H., Rosengren, A., & Rosengren, E. (1979). Electron spin resonance studies on phaeomelanins. Acta Dermato-Venereologica, 59(5), 453–456. https://doi.org/10.2340/0001555559453456
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