Abstract
Polyamines not only affect transcription and translation but also may induce a number of posttranslational modifications. The identification of polyamine-induced posttranslational modifications can be performed by 2D PAGE analyses. Here, we provide a protocol for 2D-gel electrophoresis that has been optimized for plants. The combined use of this protocol with epitope-tagged proteins expressed in plants enables the detailed analysis of posttranslational modifications induced by different polyamines in vivo.
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