MAPK8IP3 Antibody – Rabbit Polyclonal

The protein encoded by this gene shares similarity with the product of Drosophila syd gene, required for the functional interaction of kinesin I with axonal cargo. Studies of the similar gene in mouse suggested that this protein may interact with, and regulate the activity of numerous protein kinases of the JNK signaling pathway, and thus function as a scaffold protein in neuronal cells. The C. elegans counterpart of this gene is found to regulate synaptic vesicle transport possibly by integrating JNK signaling and kinesin-1 transport. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some of these variants has not been determined. [provided by RefSeq, Jul 2008]

JIP3: a member of the JNK-interacting protein group of scaffold proteins that selectively mediates JNK signaling by aggregating specific components of the MAPK cascade to form a functional JNK signaling module. Shares similarity with the product of Drosophila syd gene, required for the functional interaction of kinesin I with axonal cargo. Studies in the mouse suggested that this protein may interact with and regulate the activity of numerous protein kinases of the JNK signaling pathway. The C. elegans counterpart of this gene is found to regulate synaptic vesicle transport possibly by integrating JNK signaling and kinesin-1 transport. Several alternatively spliced transcript variants have been described, but the full-length nature of some of these variants has not been determined.

Protein type: Adaptor/scaffold; Motility/polarity/chemotaxis

Chromosomal Location of Human Ortholog: 16p13.3

Cellular Component: Golgi membrane; smooth endoplasmic reticulum; dendrite; cytoplasm; axolemma

Molecular Function: JUN kinase binding; MAP-kinase scaffold activity; receptor signaling complex scaffold activity; mitogen-activated protein kinase kinase binding; kinesin binding; mitogen-activated protein kinase kinase kinase binding

Biological Process: vesicle-mediated transport; axon guidance; protein localization; regulation of gene expression; in utero embryonic development; forebrain development; respiratory gaseous exchange; positive regulation of neuron differentiation; alveolus development; regulation of JNK cascade; activation of JNK activity; post-embryonic development