title: Photoregulation in prokaryotes.
abstract: The spectroscopic identification of sensory rhodopsin I by Bogomolni and Spudich in 1982 provided a molecular link between the light environment and phototaxis in Halobacterium salinarum, and thus laid the foundation for the study of signal transducing photosensors in prokaryotes. In recent years, a number of new prokaryotic photosensory receptors have been discovered across a broad range of taxa, including dozens in chemotrophic species. Among these photoreceptors are new classes of rhodopsins, BLUF-domain proteins, bacteriophytochromes, cryptochromes, and LOV-family photosensors. Genetic and biochemical analyses of these receptors have demonstrated that they can regulate processes ranging from photosynthetic pigment biosynthesis to virulence.
authors.affiliation: Department of Biochemistry and Molecular Biology, The University of Chicago, 929 E. 57th Street, Gordon Center for Integrative Science W125, Chicago, IL 60637, United States.
authors.forename: Erin B
authors.initials: EB
authors.lastname: Purcell
authors.forename: Sean
authors.initials: S
authors.lastname: Crosson
mesh_terms: D000818:Animals; D001419:Bacteria / Q000235:genetics / Q000254:growth & development / Q000378:metabolism / Q000472:pathogenicity; D018407:Bacterial Physiological Phenomena; D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism*; D002003:Brucella abortus / Q000235:genetics / Q000254:growth & development / Q000378:metabolism / Q000472:pathogenicity; D002006:Brucellosis / Q000382:microbiology; D004734:Energy Metabolism; D015964:Gene Expression Regulation, Bacterial; D006801:Humans; D008027:Light; D008264:Macrophages / Q000382:microbiology; D020283:Photoreceptors, Microbial / Q000378:metabolism*; D014774:Virulence
chemical_list: D001426:Bacterial Proteins; D020283:Photoreceptors, Microbial