Despite its inactive kinase state, VRK3 protein crucially regulates ERK activity by enhancing the phosphatase activity of DUSP3. The interaction with DUSP3 is pivotal as it dephosphorylates and inactivates ERK in the nucleus. VRK3, also interacting with the small GTPase RAN, forms a network of molecular interactions, positioning it as a key modulator in signaling pathways controlling ERK activity and nuclear cellular processes. VRK3 Protein, Human (sf9, His, GST) is the recombinant human-derived VRK3 protein, expressed by sf9 insect cells , with N-8*His, N-GST labeled tag.
