Fig. 1From: Regulation of carotenogenesis in the red yeast Xanthophyllomyces dendrorhous: the role of the transcriptional co-repressor complex Cyc8–Tup1 involved in catabolic repressionOverview of X. dendrorhous carotenogenesis. The genes (underlined) and enzymes (in parentheses) involved in each step are shown. Steps exclusive to the “mevalonate pathway” and “carotenoid biosynthesis” are enclosed in blue and orange squares, respectively. Structures of carotenoids are shown at the left. IPP isopentenyl pyrophosphate, DMAPP dimethylallyl pyrophosphate, GGPP geranylgeranyl pyrophosphate. Cn the number (n) of carbon atoms in each moleculeBack to article page