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Figure 2 | Microbial Cell Factories

Figure 2

From: Insights into glycogen metabolism in Lactobacillus acidophilus: impact on carbohydrate metabolism, stress tolerance and gut retention

Figure 2

Genetic organization of glycogen metabolic ( glg ) operons in Lactobacillus species. (A) Organization of the glycogen metabolic genes encoded in L. acidophilus NCFM. Predicted rho-independent transcriptional terminators are indicated in hairpin loops with overall confidence score (ranges from 0 to 100) [31]. (B) Comparative gene mosaic arrangement of the glg operons among Lactobacillus and other representative microorganisms. All glg operons in Lactobacillus have the signature glgBCDAP core genes. In addition, species closely related to L. acidophilus have amy and pgm genes proceeding the core genes. Strain designations were included for specific Lactobacillus strains (indicated with asterisks, *) with intact glg operons but belong to species that are generally lacking the pathway based on the NCBI genome database to date. Putative glycogen biosynthesis genes are indicated in red arrows, whereas glycogen degradation genes are indicated in purple arrows. amyA or pulA, ?-amylase/pullulanase/glycogen-debranching enzyme. Figure modified from [23].

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