Ligation of cell surface GRP78 with antibody directed against the COOH-terminal domain of GRP78 suppresses Ras/MAPK and PI 3-kinase/AKT signaling while promoting caspase activation in human prostate cancer cells.
Amino Acid Sequence
Cell Line, Tumor
Gene Knockdown Techniques
MAP Kinase Signaling System
Mitogen-Activated Protein Kinases
Molecular Sequence Data
Protein Structure, Tertiary
Proto-Oncogene Proteins c-akt
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Daaka, Y; Pitcher, JA; Richardson, M; Stoffel, RH; Robishaw, JD; Lefkowitz, RJ (Proc Natl Acad Sci U S A, 1997-03-18)The G protein-coupled receptor (GPCR) kinases (GRKs) phosphorylate and desensitize agonist-occupied GPCRs. GRK2-mediated receptor phosphorylation is preceded by the agonist-dependent membrane association of this enzyme. ...
Hybrid transgenic mice reveal in vivo specificity of G protein-coupled receptor kinases in the heart. Eckhart, AD; Duncan, SJ; Penn, RB; Benovic, JL; Lefkowitz, RJ; Koch, WJ (Circ Res, 2000-01-07)G protein-coupled receptor kinases (GRKs) phosphorylate activated G protein-coupled receptors, including alpha(1B)-adrenergic receptors (ARs), resulting in desensitization. In vivo analysis of GRK substrate selectivity has ...
Oppermann, M; Diversé-Pierluissi, M; Drazner, MH; Dyer, SL; Freedman, NJ; Peppel, KC; Lefkowitz, RJ (Proc Natl Acad Sci U S A, 1996-07-23)Guanine nucleotide-binding regulatory protein (G protein)-coupled receptor kinases (GRKs) constitute a family of serine/threonine kinases that play a major role in the agonist-induced phosphorylation and desensitization ...