Recombinant Human Target of rapamycin complex 2 subunit MAPKAP1 (MAPKAP1)

Uniprot Id

Q9BPZ7

Target Species

Human

Target Name

MAPKAP1

Target Full Name

Target of rapamycin complex 2 subunit MAPKAP1

Target Function

Subunit of mTORC2, which regulates cell growth and survival in response to hormonal signals. mTORC2 is activated by growth factors, but, in contrast to mTORC1, seems to be nutrient-insensitive. mTORC2 seems to function upstream of Rho GTPases to regulate the actin cytoskeleton, probably by activating one or more Rho-type guanine nucleotide exchange factors. mTORC2 promotes the serum-induced formation of stress-fibers or F-actin. mTORC2 plays a critical role in AKT1 'Ser-473' phosphorylation, which may facilitate the phosphorylation of the activation loop of AKT1 on 'Thr-308' by PDK1 which is a prerequisite for full activation. mTORC2 regulates the phosphorylation of SGK1 at 'Ser-422'. mTORC2 also modulates the phosphorylation of PRKCA on 'Ser-657'. Within mTORC2, MAPKAP1 is required for complex formation and mTORC2 kinase activity. MAPKAP1 inhibits MAP3K2 by preventing its dimerization and autophosphorylation. Inhibits HRAS and KRAS signaling. Enhances osmotic stress-induced phosphorylation of ATF2 and ATF2-mediated transcription. Involved in ciliogenesis, regulates cilia length through its interaction with CCDC28B independently of mTORC2 complex.

Target Subcellular Location

Cell membrane; Peripheral membrane protein. Cytoplasmic vesicle. Nucleus.

Target Protein Families

SIN1 family

Target Tissue Specificity

Ubiquitously expressed, with highest levels in heart and skeletal muscle.

Target Research Area

Signal Transduction

Target Synonyms

MAPKAP 1; MAPKAP1; MEKK2 interacting protein 1; MGC2745; MIP 1; MIP1; Mitogen activated protein kinase associated protein 1; Mitogen-activated protein kinase 2-associated protein 1; mSIN1; OTTHUMP00000064207; Ras inhibitor MGC2745; SAPK interacting protein 1; SAPK-interacting protein 1; SIN 1; SIN1_HUMAN; SIN1b; SIN1g; Stress activated map kinase interacting protein 1; Stress activated protein kinase interacting 1; Stress-activated map kinase-interacting protein 1; Target of rapamycin complex 2 subunit MAPKAP1; TORC2 subunit MAPKAP1

Target Background

This gene encodes a protein that is highly similar to the yeast SIN1 protein, a stress-activated protein kinase. Alternatively spliced transcript variants encoding distinct isoforms have been described. Alternate polyadenylation sites as well as alternate 3' UTRs have been identified for transcripts of this gene.