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Figure 2 | Microbial Cell Factories

Figure 2

From: Conversion of β-carotene into astaxanthin: Two separate enzymes or a bifunctional hydroxylase-ketolase protein?

Figure 2

Structure of the crtS gene of X. dendrorhous and characteristics of the encoded enzyme. A) Organization of introns and exons of the crtS gene. The gene is shown by a thick arrow and the 18 exons are indicated by open boxes. Vertical arrows. B) Conserved motifs of CrtS and the P450 hydroxylases and C) Phylogenetic analysis of CrtS. Note the relationship with the homologous gene of heterobasidiomycetes. The units at the bottom of the figure indicate the number of substitution events (modified from Álvarez et al., 2006; with permission).

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