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. 2014 Jul 29;42(17):e136. doi: 10.1093/nar/gku673

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© The Author(s) 2014. Published by Oxford University Press on behalf of Nucleic Acids Research.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — Fluorescence intensities of three promoter-reporter modules in four cyanobacterial strains. (A) Comparison of two GFP variants, GFPmut2 and yemGFP driven by PconII. (B) Comparison of the promoter activities of PconII and PpsbAI(S7942) driving GFPmut2. The data are the mean ± SD of triplicate cultures grown from three independent colonies adjusted to OD₇₅₀ of 0.2 (0.1 for A7120). Statistical significances were inferred by the Student's t test; ***P < 0.001, **P < 0.01, *P < 0.05, .P < 0.1. Strain labels are: Anabaena sp. PCC7120 (A7120), Leptolyngbya sp. BL0902 (L0902), Synechocystis sp. PCC6803 (S6803) and Synechococcus elongatus PCC7942 (S7942).