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Título : Dimerization of Arabidopsis 14-3-3 proteins: structural requirements within the N-terminal domain and effect of calcium
Autor : Abarca, Dolores, Madueño, Francisco, Martínez-Zapater, José M., Salinas, Julio
Palabras clave : 14-3-3 protein
Protein dimerization
Fecha de publicación : 3-Dec-1999
Editor: Elsevier
Citación : FEBS Letters 462(3): 377-382 (1999)
Resumen: The structural requirements for dimerization of RCI14A and RCI14B, two 14-3-3 isoforms from Arabidopsis thaliana, have been analyzed by testing truncated forms of RCI14A for dimerization with full-length RCI14A and RCI14B. The results show that only the fourth helix of the truncated partner is essential for dimerization, which represents a difference from what is known for animal isoforms. On the other hand, the effect of calcium has been tested in RCI14A homodimerization. Millimolar concentrations of calcium exert a negative, dose-dependent effect that involves the C-terminal domain of RCI14A and might modulate interactions with other cellular components or among Arabidopsis 14-3-3 isoforms.
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ISSN: 0014-5793
DOI: 10.1016/S0014-5793(99)01560-4
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