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Title: Subcellular Localization of Carotenoid Biosynthesis in Synechocystis sp. PCC 6803
Authors: Zhang, Lifang
Selão, Tiago Toscano
Selstam, Eva
Norling, Birgitta
Issue Date: 2015
Source: Zhang, L., Selão, T. T., Selstam, E., & Norling, B. (2015). Subcellular Localization of Carotenoid Biosynthesis in Synechocystis sp. PCC 6803. PLOS ONE, 10(6), e0130904-.
Series/Report no.: PLOS ONE
Abstract: The biosynthesis pathway of carotenoids in cyanobacteria is partly described. However, the subcellular localization of individual steps is so far unknown. Carotenoid analysis of different membrane subfractions in Synechocystis sp. PCC6803 shows that “light” plasma membranes have a high carotenoid/protein ratio, when compared to “heavier” plasma membranes or thylakoids. The localization of CrtQ and CrtO, two well-defined carotenoid synthesis pathway enzymes in Synechocystis, was studied by epitope tagging and western blots. Both enzymes are locally more abundant in plasma membranes than in thylakoids, implying that the plasma membrane has higher synthesis rates of β-carotene precursor molecules and echinenone.
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0130904
Schools: School of Biological Sciences 
Rights: © 2015 Zhang et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SBS Journal Articles

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