| 1997 |
GRK3 is required for agonist-induced desensitization of odorant receptors in the olfactory epithelium; GRK3 knockout mice lack fast agonist-induced desensitization and show markedly reduced cAMP generation following odorant stimulation. |
GRK3 knockout mice, cilia preparation cAMP assay, odorant stimulation |
The Journal of biological chemistry |
High |
9325250
|
| 1998 |
Cardiac overexpression of GRK3 selectively attenuates thrombin-induced p42/p44 MAP kinase activation but does not desensitize beta-adrenergic or angiotensin II receptors in vivo, demonstrating distinct substrate specificity of GRK3 in the heart. |
Transgenic mice with cardiac-specific GRK3 overexpression, in vivo hemodynamic measurements, MAP kinase activation assays |
The American journal of physiology |
High |
9746479
|
| 2001 |
GRK3 mediates homologous desensitization of CRF1 receptors; GRK3 antisense knockdown (~50% reduction in GRK3 protein) inhibited CRF1 receptor desensitization by ~65% in Y-79 cells, while PKA inhibition had no effect. |
GRK3 antisense oligonucleotide and antisense cDNA transfection, cAMP accumulation assay, heparin GRK inhibition |
American journal of physiology. Regulatory, integrative and comparative physiology |
Medium |
11247813
|
| 2003 |
GRK3-mediated mechanisms are required for electrophysiological and behavioral tolerance to the high-efficacy opioid fentanyl but not morphine; GRK3 knockout mice show significantly reduced fentanyl tolerance in hippocampal slices and antinociceptive assays. |
GRK3 knockout mice, hippocampal slice electrophysiology, hot-plate antinociception assay |
British journal of pharmacology |
High |
14662727
|
| 2003 |
Beta2-adrenoceptor activation upregulates GRK3 expression, which in turn mediates desensitization and downregulation of alpha2A-adrenoceptors; GRK2/3 antisense DNA blocked chronic adrenaline-induced alpha2A-AR desensitization. |
GRK2/3 antisense DNA, receptor binding assay, beta-AR antagonist propranolol blockade, immunoblotting |
British journal of pharmacology |
Medium |
12642394
|
| 2005 |
ATP stimulates GRK3 binding to the P2X7 receptor, followed by beta-arrestin-2 and dynamin recruitment, leading to clathrin-dependent internalization of the receptor. |
Western blot co-immunoprecipitation, pore formation assay, immunofluorescence of beta-arrestin-2 redistribution |
American journal of physiology. Cell physiology |
Medium |
15728711
|
| 2006 |
KOR activation of p38 MAPK requires GRK3-mediated phosphorylation of serine-369 on KOR and subsequent arrestin3 recruitment; p38 activation was absent in GRK3 knockout neurons and astrocytes, and was rescued by dominant-positive arrestin3-(R170E). |
GRK3 knockout mice, AtT-20 cells with KSA mutant receptor, dominant-positive arrestin3-(R170E) transfection, phospho-p38 immunolabeling, siRNA for arrestin3 |
The Journal of biological chemistry |
High |
16648139
|
| 2006 |
Mu opioid receptor activation of ERK1/2 in striatal neurons requires GRK3 and arrestin3; ERK1/2 activation by fentanyl was absent in GRK3-/- neurons and restored by dominant-positive arrestin3-(R170E), and was not induced by morphine (lower efficacy) unless dominant-positive arrestin was co-expressed. |
GRK3 knockout mice, MOR knockout mice, dominant-positive arrestin3-(R170E) transfection, siRNA for arrestin3, MEK inhibitor U0126, ERK1/2 phosphorylation assay |
The Journal of biological chemistry |
High |
16982618
|
| 2006 |
Chronic treatment with lithium or carbamazepine (but not valproate) increases translocation of GRK3 from cytosol to membrane fraction in rat frontal cortex. |
Immunoblotting of membrane and cytosol fractions from drug-treated rats |
Biological psychiatry |
Low |
16697355
|
| 2007 |
CRF activates CRF1 receptors to upregulate GRK3 expression via an ERK1/2-mediated mechanism involving Sp-1 and Ap-2 transcription factors in CATH.a cells (locus coeruleus-derived). |
ERK1/2 inhibitors, transcription factor activity assays (Sp-1, Ap-2), GRK3 mRNA/protein quantification |
FEBS letters |
Medium |
17583697
|
| 2007 |
Inhibition of cardiac GRK3 (via expression of GRK3ct) enhances alpha1-adrenergic receptor-mediated ERK1/2 activation in cardiac myocytes and increases systolic blood pressure and cardiac output in vivo, demonstrating that GRK3 specifically desensitizes alpha1-adrenergic receptors in the heart. |
Transgenic mice expressing GRK3ct competitive inhibitor, cardiac myocyte ERK1/2 assay, conductance micromanometry, tail-cuff plethysmography, radiotelemetric blood pressure recording |
The Journal of biological chemistry |
High |
18165681
|
| 2008 |
GRK3 specifically regulates CXCL12-promoted internalization and desensitization of CXCR4; GRK3 silencing in control leukocytes phenocopied impaired CXCR4 attenuation seen in WHIM syndrome cells, and GRK3 overexpression in WHIM patient cells restored normal CXCR4 internalization and chemotaxis. |
GRK3 siRNA knockdown, GRK3 overexpression in patient leukocytes and fibroblasts, CXCR4 internalization assay, chemotaxis assay |
The Journal of clinical investigation |
High |
18274673
|
| 2009 |
The C-terminus of GRK3 (GRK3ct) fused to fluorescent reporters binds free Gbetagamma dimers but not intact heterotrimers, enabling real-time reporting of G protein heterotrimer dissociation; using this probe, heterotrimer dissociation in living cells was shown to occur in less than 100 ms. |
FRET/BRET with GRK3ct fusion proteins and venus-labeled Gbetagamma, live-cell imaging, kinetic analysis |
Cellular signalling |
High |
19258039
|
| 2014 |
GRK3 promotes prostate cancer metastasis and angiogenesis, at least in part through downregulation of thrombospondin-1 and plasminogen activator inhibitor type 2; GRK3 is necessary for survival/proliferation of metastatic cells and sufficient to promote primary tumor growth in mouse xenograft models. |
RNAi screen, cDNA overexpression screen, mouse xenograft models, angiogenesis assays, protein expression analysis |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
24434559
|
| 2015 |
GRK3 suppresses L-DOPA-induced dyskinesia via its RGS homology (RH) domain, which binds striatal Gq; kinase-dead GRK3 retains suppressive activity, but GRK3 with disabled RH domain does not, indicating the RH domain mediates Gq inhibition independently of kinase activity. |
Viral vector-mediated overexpression and microRNA knockdown in hemiparkinsonian rats, domain mutant analysis, Gq binding assay, ΔFosB immunohistochemistry |
Scientific reports |
High |
26043205
|
| 2016 |
CREB directly targets and induces GRK3 transcription; GRK3 promotes neuroendocrine differentiation of prostate cancer cells in a kinase activity-dependent manner, and GRK3 silencing blocks CREB-induced neuroendocrine differentiation. |
ChIP/promoter analysis for CREB binding, GRK3 overexpression with kinase-dead controls, siRNA knockdown, NE marker expression assays |
Oncotarget |
Medium |
27191986
|
| 2019 |
RKIP binds specifically to the N-termini of GRK2 and GRK3 (not GRK5); the isolated N-terminal domains (GRK2/3 residues 1-185) interact directly with beta2-AR, prevent its phosphorylation and internalization, and increase receptor signaling and cardiomyocyte contractility. |
Co-immunoprecipitation, pull-down assays, beta2-AR phosphorylation assay, receptor internalization assay, cardiomyocyte contractility measurement |
Biochemical and biophysical research communications |
Medium |
31604529
|
| 2020 |
GRK3 is recruited to chemokine-stimulated ACKR4 prior to beta-arrestins, and GRK2/3 inhibition partially blocks steady-state and chemokine-driven beta-arrestin recruitment to ACKR4, placing GRK3 upstream of beta-arrestin in ACKR4 trafficking. |
BRET-based GRK and beta-arrestin recruitment assays, GRK2/3 pharmacological inhibition, ACKR4 C-terminus deletion, fluorescent chemokine uptake assay |
Frontiers in immunology |
Medium |
32391018
|
| 2020 |
GRK2 and GRK3 are both required for mu-opioid receptor internalization and beta-arrestin2 recruitment; GRK2 contributes more than GRK3, and a GRK2/3-independent component of beta-arrestin2 recruitment exists at the plasma membrane. |
CRISPR/Cas9 knockout of GRK2, GRK3, or both in HEK293 cells; rescue expression; CMPD101 pharmacological inhibition; BRET-based beta-arrestin2 recruitment; flow cytometry internalization assay |
Scientific reports |
High |
33060647
|
| 2021 |
GRK3 deficiency in mice leads to elevated brain IL-1β, increased kynurenic acid turnover, hyper-responsiveness to D-amphetamine, elevated spontaneous firing of midbrain dopamine neurons, and disruption in prepulse inhibition, linking GRK3 to immune/glial activation and dopaminergic dysregulation. |
Grk3-/- mice, behavioral assays, electrophysiology, biochemical (IL-1β, KYNA measurements), molecular imaging |
Molecular psychiatry |
Medium |
33976392
|
| 2023 |
GRK3 phosphorylates HDAC2 at serine 394, enhancing HDAC2's epigenetic repression of TSP1 and REST, thereby promoting angiogenesis and neuroendocrine differentiation in prostate cancer. |
Co-IP, phosphorylation assay (GRK3-HDAC2 at S394), ChIP, luciferase reporter assay, siRNA/overexpression, in vivo xenograft |
Cancer letters |
Medium |
37543278
|
| 2023 |
GRK3 deficiency enhances osteoclastogenesis and proliferation of hematopoietic osteoclast precursors in vitro and in vivo; aged Grk3-/- mice develop bone lesions resembling Paget's Disease of Bone. |
Grk3-/- mice, in vitro osteoclast differentiation assay, flow cytometry of hematopoietic precursors, histological analysis |
Cells |
Medium |
37048054
|
| 2024 |
GRK3 plays a distinct role in platelet GPCR desensitization: GRK3-/- platelets show potentiated aggregation and secretion in response to multiple GPCR agonists (including Gq-, Gi-, and Gz-coupled receptors) but not to the non-GPCR agonist collagen; GRK3-/- mice show shorter tail bleeding times. |
GRK3 knockout mice, platelet aggregation assay, dense granule secretion assay, AKT and ERK phosphorylation, tail bleeding time |
Thrombosis and haemostasis |
High |
39419098
|
| 2024 |
Gβ5 selectively distinguishes GRK3 from GRK2 and enables GRK3 recruitment to the plasma membrane upon MOR activation; GRK3 is recruited to confined membrane domains enriched in Gβ5 (via single-molecule imaging), and oliceridine (a G-protein-biased MOR agonist) selectively activates GRK3-mediated beta-arrestin recruitment via Gαz-Gβ5 signaling. |
Multiple CRISPR-edited cell lines, BRET/FRET functional assays, single-molecule imaging, particle diffusion analysis |
European journal of pharmacology |
High |
39579957
|
| 2007 |
GRK3 regulates GRK2 protein levels in U937 cells via a mechanism involving inositol phosphate (InsP) upregulation; GRK3 antisense knockdown decreased GRK2 levels, establishing a novel cross-regulatory mechanism between GRK family members. |
Antisense knockdown of GRK3, immunoblotting for GRK2, InsP measurement |
Biochemical pharmacology |
Low |
17433264
|
| 2025 |
GRK2, GRK3, and GRK6 are all important for FPR1 internalization in neutrophil-like cells, as identified by genome-wide CRISPR/Cas9 screens; FPR1 uses multiple endocytic pathways since cells lacking beta-arrestins show strong but incomplete internalization defects. |
Genome-wide CRISPR/Cas9 screens, FPR1 surface expression and internalization assays, beta-arrestin knockout validation |
bioRxivpreprint |
Medium |
bio_10.1101_2025.04.21.649864
|