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Fig. 2 | BMC Microbiology

Fig. 2

From: Identification of promoter elements in the Dolichospermum circinale AWQC131C saxitoxin gene cluster and the experimental analysis of their use for heterologous expression

Fig. 2

Sequence analysis of the five promoters present within the D. circinale AWQC131C sxt biosynthetic gene cluster. a Intergenic between sxtD and sxtP showing the bidirectional promoter region of operon 1 and 2. b Intergenic between sxtPER and orf24 showing the bidirectional promoter region of operon 3 and 4. Individual promoters include, PsxtD (green), PsxtP (red), PsxtPER2 (light blue), PsxtPER1 (dark blue) and Porf24 (yellow). Transcriptional elements including promoters, TSS, translation start site, and RBS are shown for the five sxt promoters

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