Determination of Posttranslational Modifications of Photoreceptor Differentiation Factor NRL: Focus on SUMOylation
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Conjugation of SUMO (small ubiquitin-related modifier 1) is a critical posttranslational modification, with significant impact on protein function/activity. Here, we describe direct SUMOylation of GST (glutathione S-transferase)-fusion protein and immunoprecipitation assays for investigating SUMOylation of any protein of interest. We have employed these methods to examine SUMOylation of the basic-motif leucine zipper transcription factor NRL.
