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. 2008 Mar 14;190(10):3738–3746. doi: 10.1128/JB.01721-07

FIG. 3.

FIG. 3.

The overexpression of NHT-1 lengthens the circadian period independently of CikA. Bioluminescence from a PkaiBC::luxAB reporter is expressed as counts per second. Arrows show the time point at which 1 mM IPTG was added. (A) Open squares, WT; closed squares, strain overexpressing NHT-1 in a WT background. (B) Open triangles, cikA null mutant; closed triangles, cikA null mutant overexpressing NHT-1. (C) Quantitative comparison of mean period lengths pre-IPTG addition versus post-IPTG addition for the WT (24.98 ± 0.23 h versus 24.95 ± 0.22 h; n = 4), a strain overexpressing NHT-1 in a WT background (NHT-OX; 24.62 ± 0.34 h versus 25.77 ± 0.35 h; n = 7), a cikA null mutant (23.52 ± 0.40 h versus 23.18 ± 0.82 h; n = 5), and a cikA null mutant overexpressing NHT-1 (cikA/NHT-OX; 22.77 ± 0.99 h versus 25.95 ± 0.47 h; n = 3).