GAS6: Ligand for tyrosine-protein kinase receptors AXL, TYRO3 and MER whose signaling is implicated in cell growth and survival, cell adhesion and cell migration. GAS6/AXL signaling plays a role in various processes such as endothelial cell survival during acidification by preventing apoptosis, optimal cytokine signaling during human natural killer cell development, hepatic regeneration, gonadotropin-releasing hormone neuron survival and migration, platelet activation, or regulation of thrombotic responses. 4 isoforms of the human protein are produced by alternative splicing.
Protein type: Secreted; Ligand, receptor tyrosine kinase; Secreted, signal peptide
Chromosomal Location of Human Ortholog: 13q34
Cellular Component: extracellular space; endoplasmic reticulum lumen; Golgi lumen; cytoplasm; extracellular region
Molecular Function: voltage-gated calcium channel activity; protein binding; phosphatidylserine binding; caspase inhibitor activity; protein tyrosine kinase activator activity; calcium ion binding; receptor tyrosine kinase binding; receptor agonist activity; molecular adaptor activity; receptor binding
Biological Process: proteolysis; enzyme linked receptor protein signaling pathway; protein amino acid phosphorylation; positive regulation of fibroblast proliferation; viral envelope fusion with host membrane; negative regulation of protein import into nucleus, translocation; regulation of growth; positive regulation of phagocytosis; negative regulation of interleukin-6 production; cell cycle arrest; cell adhesion; positive regulation of TOR signaling pathway; platelet activation; organ regeneration; activation of protein kinase B; negative regulation of transcription factor activity; cellular response to starvation; peptidyl-glutamic acid carboxylation; negative regulation of transcription, DNA-dependent; negative regulation of interleukin-1 secretion; leukocyte migration; negative regulation of apoptosis; entry of virus into host cell; neuron migration; negative regulation of caspase activity; signal transduction; positive regulation of protein export from nucleus; positive regulation of natural killer cell differentiation; platelet degranulation; positive regulation of glomerular filtration; negative regulation of interferon-gamma production; protein kinase B signaling cascade; virion attachment, binding of host cell surface receptor; cell migration; negative regulation of tumor necrosis factor production; viral genome replication; post-translational protein modification; positive regulation of peptidyl-serine phosphorylation; cell-substrate adhesion; phagocytosis; cell proliferation; positive regulation of protein kinase B signaling cascade; peptidyl-serine phosphorylation; cellular protein metabolic process; positive regulation of protein kinase activity; positive regulation of protein amino acid phosphorylation; blood coagulation; positive regulation of cytokine and chemokine mediated signaling pathway; apoptotic cell clearance
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