Assaying the Posttranslational Arginylation of Proteins in Cultured Cells

  • Mauricio R. Galiano
  • Marta E. HallakEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1337)


To evaluate the posttranslational arginylation of proteins in vivo, we describe a protocol for studying the 14C-Arg incorporation into proteins of cells in culture. The conditions determined for this particular modification contemplate both the biochemical requirements of the enzyme ATE1 and the adjustments that allowed the discrimination between posttranslational arginylation of proteins and de novo synthesis. These conditions are applicable for different cell lines or primary cultures, representing an optimal procedure for the identification and the validation of putative ATE1 substrates.

Key words

Arg-tRNA-protein transferase Posttranslational arginylation Metabolic labeling N-terminal modification ATE1 



M.R.G. and M.E.H. are career investigators from CONICET.


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Departamento de Química Biológica, Facultad de Ciencias Químicas, Centro de Investigaciones en Química Biológica de Córdoba, CIQUIBIC, (UNC-CONICET)Universidad Nacional de Córdoba (X5000HUA)CórdobaArgentina

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