JIP1 Proteins

Protein Information

The protein encoded by this gene is a regulator of the pancreatic beta-cell function. It is highly similar to JIP-1, a mouse protein known to be a regulator of c-Jun amino-terminal kinase (Mapk8). This protein has been shown to prevent MAPK8 mediated activation of transcription factors, and decrease IL-1 beta and MAP kinase kinase 1 (MEKK1) induced apoptosis in pancreatic beta cells. This protein also functions as a DNA-binding transactivator of the glucose transporter GLUT2. RE1-silencing transcription factor (REST) is reported to repress the expression of this gene in insulin-secreting beta cells. This gene is found to be mutated in a type 2 diabetes family, and thus is thought to be a susceptibility gene for type 2 diabetes.

Synonyms

C-Jun-amino-terminal kinase-interacting protein 1; Ib1; IB-1; Islet-brain 1; islet-brain-1; JIP1; JIP-1; JIP-1-related protein; JNK MAP kinase scaffold protein 1; JNK-interacting protein 1; JRP; Mapk8ip; Mapk8ip1; mitogen activated protein kinase 8 interacting protein; mitogen activated protein kinase 8 interacting protein 1; mitogen-activated protein kinase 8 interacting protein 1; mitogen-activated protein kinase 8-interacting protein 1; mjip-2a; PRKM8 interacting protein; Prkm8ip; protein kinase, mitogen-activated 8 interacting protein; Skip