Glutamine Synthetase in Legumes: Recent Advances in Enzyme Structure and Functional Genomics
AbstractGlutamine synthetase (GS) is the key enzyme involved in the assimilation of ammonia derived either from nitrate reduction, N2 fixation, photorespiration or asparagine breakdown. A small gene family is encoding for different cytosolic (GS1) or plastidic (GS2) isoforms in legumes. We summarize here the recent advances carried out concerning the quaternary structure of GS, as well as the functional relationship existing between GS2 and processes such as nodulation, photorespiration and water stress, in this latter case by means of proline production. Functional genomic analysis using GS2-minus mutant reveals the key role of GS2 in the metabolic control of the plants and, more particularly, in carbon metabolism.
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Betti, M.; García-Calderón, M.; Pérez-Delgado, C.M.; Credali, A.; Estivill, G.; Galván, F.; Vega, J.M.; Márquez, A.J. Glutamine Synthetase in Legumes: Recent Advances in Enzyme Structure and Functional Genomics. Int. J. Mol. Sci. 2012, 13, 7994-8024.
Betti M, García-Calderón M, Pérez-Delgado CM, Credali A, Estivill G, Galván F, Vega JM, Márquez AJ. Glutamine Synthetase in Legumes: Recent Advances in Enzyme Structure and Functional Genomics. International Journal of Molecular Sciences. 2012; 13(7):7994-8024.Chicago/Turabian Style
Betti, Marco; García-Calderón, Margarita; Pérez-Delgado, Carmen M.; Credali, Alfredo; Estivill, Guillermo; Galván, Francisco; Vega, José M.; Márquez, Antonio J. 2012. "Glutamine Synthetase in Legumes: Recent Advances in Enzyme Structure and Functional Genomics." Int. J. Mol. Sci. 13, no. 7: 7994-8024.