Mitogen-Activated Protein Kinase 8 Interacting Protein 1
JIP-1
JIP1
IB1
PRKM8IP
C-Jun-Amino-Terminal Kinase-Interacting Protein 1
JNK MAP Kinase Scaffold Protein 1
JNK-Interacting Protein 1
Islet-Brain 1
IB-1
Mitogen-Activated Protein Kinase 8-Interacting Protein 1
PRKM8 Interacting Protein
This gene encodes 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 to 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. [provided by RefSeq, May 2011]
Forensic Context
A study in mice demonstrated that the ketogenic diet significantly decreased kainic acid-induced increases in the MAPK8IP1 protein level in the hippocampus [Noh et al. DOI:10.1016/J.Neulet.2005.10.073].