Phycoerythrin-Specific Bilin Lyase–Isomerase Controls Blue
Phycoerythrin-specific bilin lyase–isomerase controls blue-green chromatic acclimation in marine Synechococcus Animesh Shuklaa, Avijit Biswasb, Nicolas Blotc,d,e, Frédéric Partenskyc,d, Jonathan A. Kartyf, Loubna A. Hammadf, Laurence Garczarekc,d, Andrian Gutua,g, Wendy M. Schluchterb, and David M. Kehoea,h,1 aDepartment of Biology, Indiana University, Bloomington, IN 47405; bDepartment of Biological Sciences, University of New Orleans, New Orleans, LA 70148; cUPMC-Université Paris 06, Station Biologique, 29680 Roscoff, France; dCentre National de la Recherche Scientifique, Unité Mixte de Recherche 7144 Adaptation et Diversité en Milieu Marin, Groupe Plancton Océanique, 29680 Roscoff, France; eClermont Université, Université Blaise Pascal, Unité Mixte de Recherche Centre National de la Recherche Scientifique 6023, Laboratoire Microorganismes: Génome et Environnement, 63000 Clermont-Ferrand, France; fMETACyt Biochemical Analysis Center, Department of Chemistry, Indiana University, Bloomington, IN 47405; gDepartment of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138; and hIndiana Molecular Biology Institute, Indiana University, Bloomington, IN 47405 Edited by Alexander Namiot Glazer, University of California, Berkeley, CA, and approved October 4, 2012 (received for review July 10, 2012) The marine cyanobacterium Synechococcus is the second most Marine Synechococcus are divided into three major pigment abundant phytoplanktonic organism in the world’s oceans. The types, with type 1 PBS rods containing only PC, type 2 containing ubiquity of this genus is in large part due to its use of a diverse PC and PEI, and type 3 containing PC, PEI, and PEII (4). Type 3 set of photosynthetic light-harvesting pigments called phycobilipro- can be further split into four subtypes (3 A–D)onthebasisofthe teins, which allow it to efficiently exploit a wide range of light ratio of the PUB and PEB chromophores bound to PEs.
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