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Rakesh Pandey, Dietrich Flockerzi, Marcus J. B. Hauser and Ronny Straube An extended model for the repression of photosynthesis genes by the AppA/PpsR system in Rhodobacter sphaeroides The FEBS Journal 279

Version of Record online: 16 MAR 2012 | DOI: 10.1111/j.1742-4658.2012.08520.x

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Under anaerobic conditions, purple bacteria derive energy from photosynthesis. Rhodobacter sphaeroides exhibits a unique phenotype under semi-aerobic conditions where photosynthesis genes are specifically repressed by blue-light illumination. We have developed a mathematical model which identifies kinetic and stoichiometric constrains for the emergence of such a phenotype. It can also explain the diminished light sensitivity observed in a mutant strain

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