Function:Essential component of the TORC2 complex , which plays a critical role in AKT1 'Ser-473' phosphorylation , and may modulate the phosphorylation of PKCA and regulate actin cytoskeleton organization. Inhibits MAP3K2 by preventing its dimerization and autophosphorylation. Inhibits HRAS and KRAs signaling. Enhances osmotic stress-induced phosphorylation of ATF2 and ATF2-mediated transcription. ,similarity:Belongs to the SIN1 family. ,subunit:All isoforms except isoform 4 are able to be part of the target of rapamycin 2 complex (TORC2) comprised of FRAP1 , LST8 , PROTOR1 , RICTOR and MAPKAP1. Interacts with ATF2 , MAP3K2 and MAPK8. Interacts with GTP-bound HRAS and KRAS. Interacts with IFNAR2. ,tissue specificity:Ubiquitously expressed , with highest levels in heart and skeletal muscle. ,
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