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Título: | Biosynthesis of cofactor-activatable iron-only nitrogenase in Saccharomyces cerevisiae |
Autor: | López-Torrejón, Gema; Burén, Stefan; Veldhuizen, Marcel; Rubio, Luis M. | Palabras clave: | Bacterial proteins Iron Nitrogen Fixation Nitrogenase Saccharomyces cerevisiae |
Fecha de publicación: | may-2021 | Editor: | John Wiley & Sons | Citación: | Microbial Biotechnology 14(3): 1073-1083 (2021) | Resumen: | Engineering nitrogenase in eukaryotes is hampered by its genetic complexity and by the oxygen sensitivity of its protein components. Of the three types of nitrogenases, the Fe-only nitrogenase is considered the simplest one because its function depends on fewer gene products than the homologous and more complex Mo and V nitrogenases. Here, we show the expression of stable Fe-only nitrogenase component proteins in the low-oxygen mitochondria matrix of S. cerevisiae. As-isolated Fe protein (AnfH) was active in electron donation to NifDK to reduce acetylene into ethylene. Ancillary proteins NifU, NifS and NifM were not required for Fe protein function. The FeFe protein existed as apo-AnfDK complex with the AnfG subunit either loosely bound or completely unable to interact with it. Apo-AnfDK could be activated for acetylene reduction by the simple addition of FeMo-co in vitro, indicating preexistence of the P-clusters even in the absence of coexpressed NifU and NifS. This work reinforces the use of Fe-only nitrogenase as simple model to engineer nitrogen fixation in yeast and plant mitochondria. | Descripción: | 11 Pág. Centro de Biotecnología y Genómica de Plantas (CBGP) | Versión del editor: | https://doi.org/10.1111/1751-7915.13758 | URI: | http://hdl.handle.net/10261/283439 | DOI: | 10.1111/1751-7915.13758 | ISSN: | 1751-7907 |
Aparece en las colecciones: | (INIA) Artículos |
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Biosynthesis-of-cofactor-activatable-iron.pdf | artículo | 1,54 MB | Adobe PDF | Visualizar/Abrir |
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