Melanin
Melanin is a special pigment of the epidermis. It helps protect the body from the sun's radiation. This pigment contributes to the color of the skin and is produced deep within the layers of the epidermis. It is created from amino acid tyrosine It help our skin to protect from the sun.
Melanin Media
Micrograph of Melanin pigment (light refracting granular material—center of image) in a pigmented melanoma.
Micrograph of the epidermis, with melanin labeled at left.
Albinism occurs when melanocytes produce little melanin. This albino girl is from Papua New Guinea.
Part of the structural formula of pheomelanin. "(COOH)" can be COOH or H, or (more rarely) other substituents. The arrows denote where the polymer continues.
Chemical structure of indole-5,6-quinone
Structure of L-tyrosine under physiological conditions
3,4-Dihydroxy-L-phenylalanin (Levodopa)
Structure of L-dopaquinone
Structure of L-leucodopachrome
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References
- Dennis Edgerly (ed.). EMT prehospital care 4th edition".