Title : Phosphorylation of Runx1 at Ser249, Ser266, and Ser276 is dispensable for bone marrow hematopoiesis and thymocyte differentiation.

Pub. Date : 2008 Apr 11

PMID : 18261462






4 Functional Relationships(s)
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1 Based on transfection assays, phosphorylation of Runx1 at the three serine residues, Ser249, Ser266, and Ser276, was thought to be important for trans-activation activity of Runx1. Serine runt related transcription factor 1 Mus musculus
2 Based on transfection assays, phosphorylation of Runx1 at the three serine residues, Ser249, Ser266, and Ser276, was thought to be important for trans-activation activity of Runx1. Serine runt related transcription factor 1 Mus musculus
3 By using "knock-in" gene targeting, we generated mouse strains expressing mutant Runx1 protein that harbored a combined serine-to-alanine substitution at either of two residues, Ser249/Ser266 or Ser249/Ser276. Serine runt related transcription factor 1 Mus musculus
4 These results not only challenge the predicted regulation of Runx1 activity by phosphorylation at these serine residues, but also reaffirm the effectiveness of "knock-in" mutagenesis as a powerful tool for addressing the physiological relevance of post-translation modifications. Serine runt related transcription factor 1 Mus musculus