@article{fdi:010089887, title = {{P}ps{R} : a multifaceted regulator of photosynthesis gene expression in purple bacteria}, author = {{E}lsen, {S}. and {J}aubert, {M}. and {P}ignol, {D}. and {G}iraud, {E}ric}, editor = {}, language = {{ENG}}, abstract = {{P}urple bacteria control the level of expression and the composition of their photosystem according to light and redox conditions. {T}his control involves several regulatory systems that have been now well characterized. {A}mong them, the {P}ps{R} regulator plays a central role, because it directly or indirectly controls the synthesis of all of the different components of the photosystem. {I}n this review, we report our knowledge of the {P}ps{R} protein, highlighting the diversity of its mode of action and focusing on the proteins identified in four model purple bacteria ( {R}hodobacter capsulatus, {R}hodobacter sphaeroides, {R}ubrivivax gelatinosus, {B}radyrhizobium {ORS}278). {T}his regulator exhibits unique regulatory features in each bacterium: it can activate and/or repress the expression of photosynthesis genes, its activity can be modulated or not by the redox conditions, it can interact with other specific regulators and therefore be involved differently in light and/or redox regulatory circuits.}, keywords = {}, booktitle = {}, journal = {{M}olecular {M}icrobiology}, volume = {57}, numero = {1}, pages = {17--26}, ISSN = {0950-382{X}}, year = {2005}, DOI = {10.1111/j.1365-2958.2005.04655.x}, URL = {https://www.documentation.ird.fr/hor/fdi:010089887}, }