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. Author manuscript; available in PMC: 2010 Jan 22.
Published in final edited form as: Mol Microbiol. 2003 Oct;50(2):577–584. doi: 10.1046/j.1365-2958.2003.03708.x

Fig. 2.

Fig. 2

Alignment of Chlamydia trachomatis serovar L2 hctB promoter (Brickman et al., 1993) with the σ28 consensus promoter structure (reviewed in Helmann, 1991; Gross et al., 1992) and σ28 extended promoter structure (Ide et al., 1999) derived from Escherichia coli and Salmonella sequences. Predicted promoter elements are underlined with the sequence differences from the extended promoter structure shown in lowercase.