Fig. 5

Schematic genetic organisation of the exopolysaccharide (EPS) gene clusters in L. lactis FM03P. Typical eps gene clusters of L. lactis and Lactobacillus delbrueckii are shown [50]. Colours represent different functional groups. Genes with unknown functions or functions not related to EPS biosynthesis are shown in white. All genes are transcribed in the forward direction except for a few genes oriented in the opposite direction, marked with arrows. Pseudogenes are marked with an asterisk. XRE and LytR represent the type of the transcriptional regulator. The letter and names above the boxed represent the gene names, in which only the last letter of the gene name is given for genes starting with eps. The ‘GT’ functional module consists of glycosyltransferases and other enzymes modifying the repeat unit structure, like the acetyltransferase (AT). This figure is adapted from [50]. IS: transposase; NDP-sugar: nucleotide diphopho-sugar