|Detection of Mouse and Rat JIP1 by Western Blot. Western blot shows lysates of C2C12 mouse myoblast cell line, Neuro‑2A mouse neuroblastoma cell line, and PC‑12 rat adrenal pheochromocytoma cell line. PVDF membrane was probed with 1 µg/mL of Human/Mouse/Rat JIP1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4366) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). Specific bands were detected for JIP1 at approximately 105 to 115 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.|
JNK-interacting proteins (JIPs) comprise a family of four scaffolding proteins that tether and assemble components of the JNK signaling cascade. JIP1, also known as islet-brain 1 (IB1) and mitogen-activated protein kinase 8-interacting protein 1 (MAPK8IP1), contains an N-terminal JNK-binding domain, and C-terminal MLK- and MKK7-binding domains. JIP1 is ubiquitously expressed, with highest levels in brain and in pancreatic beta -cells. Mice lacking JIP1 are resistant to diet-induced obesity and show reduced diet-induced insulin resistance.
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