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. 2009 Mar 11;4(3):e4695. doi: 10.1371/journal.pone.0004695

Figure 2. A. caulinodans hyq genetic locus and physical map: creation of in-frame, translational fusion deletions.

Figure 2

The main line represents the genetic map of the 7-gene hyq polycistronic operon (7.4 kbp coding DNA). Superimposed above is the ∼300 np sequence upstream of the hyqR start (ATG) codon, presumably comprising the hyq control region, which includes a canonical NIFAbox element, facilitating binding of the NIFA transcriptional activator, adjacent to a σ54F-box element, allowing initiation by RNA polymerase·σ54F complex (see Results). For additional details, please refer to Fig 1.