Rapid and Massive Green Fluorescent Protein Production Leads to Formation of Protein Y-Bodies in Plant Cellsстатья

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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.

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[1] Rapid and massive green fluorescent protein production leads to formation of protein y-bodies in plant cells / T. V. Komarova, E. V. Sheval, D. V. Pozdyshev et al. // Biochemistry (Moscow). — 2012. — Vol. 77, no. 6. — P. 603–608. Although high level of recombinant protein production can be achieved via transient expression in plant cells, the mechanism by which tolerance to the presence of recombinant protein is acquired remains unclear. Here we show that green fluorescent protein (GFP) encoded by an intron-optimized tobacco mosaic viral vector formed large membraneless GFP bodies called Y-bodies that demonstrated mainly perinuclear localization. The Y-bodies were heterogeneous in size, approaching the size of the cell nucleus. Experiments with extracted GFP and live cell imaging showed that Y-bodies included actively fluorescent, non-aggregated, tightly packed GFP molecules. The plant cells probably formed Y-bodies to exclude the recombinant protein from normal physiological turnover. [ DOI ]

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