PHOSPHO-IRE1 ALPHA (SER724) AN

Using Phospho‐Motif Antibodies to Determine Kinase Substrates

the phosphorylation site; therefore, substrate?directed, phosphorylation?state?sensitive, motif?specific (?phospho?motif?) antibodies represent powerful tools to identify novel kinase substrates and to investigate mechanisms of substrate phosphorylation

Signaling Events Initiated by Kappa Opioid Receptor Activation: Quantification and Immunocolocalization Using Phospho-Selective KOR, p38 MAPK, and KIR

), and causes activation of KOR. Agonist-activated KOR becomes a substrate for G protein receptor kinase (GRK), which phosphorylates the Ser369 residue at the C-terminal tail of the receptor in the first step in the β-Arrestin-dependent desensitization cascade

【求助】关于gsk3-beta功能的疑问

下调不能说明活性降低，因为决定GSK3-beta的活性的还与其磷酸化的比例和磷酸化的位点有关。所以你除了要做GSK3-beta总的蛋白表达之外，还要做磷酸化的GSK3-beta的蛋白表达。 （2）应该活性形式和非活性形式都做。一般来讲，GSK3-beta在Ser9位点磷酸化之后活性收到抑制，而在216位点磷酸化之后，其活性收到加强。因此建议将GSK3-beta的两个磷酸化位点都做了，另外还要同时检测GSK3-beta的总蛋白表达，这样才能全面的说明问题。