274643.fig.001
Figure 1: Melanin biosynthetic pathway [27]. TYR: tyrosinase; TRP: tyrosinase related protein; DOPA: 3,4-dihydroxyphenylalanine; DHICA: 5,6-dihydroxyindole-2-carboxylic acid; DHI: 5,6-dihydroxyindole; ICAQ: indole-2-carboxylic acid-5,6-quinone; IQ: indole-5,6-quinone; HBTA: 5-hydroxy-1,4-benzothiazinylalanine.