| Description |
This is amino acids 146 to 159 fragment of BAD BH3 protein, phosphorylated at Ser155. Phosphorylation of BAD at Ser155 within the BH3 domain is a mechanism that inhibits the death-promoting activity of BAD. Protein kinase A, RSK1, and survival factor signaling stimulate phosphorylation of BAD at Ser155, blocking the binding of BAD to Bcl-XL. RSK1 may also phosphorylate BAD at Ser112 and Ser155 and rescue BAD-mediated cell death in a manner dependent upon phosphorylation at both sites. |