1. Signaling Pathways
  2. MAPK/ERK Pathway
  3. Ribosomal S6 Kinase (RSK)

Ribosomal S6 Kinase (RSK)

S6K

Ribosomal S6 Kinase (RSK) is a family of serine/threonine protein kinases involved in the regulation of cell viability. RSK is phosphorylated in response to mitogens by activation of one or more protein kinase cascades. Phosphorylation of S6 in vivo is catalyzed by (at least) two distinct mitogen-activated S6 kinase families distinguishable by size, the 70 kDa and 90 kDa S6 kinases. Both S6 kinases are activated by serine/threonine phosphorylation.

The p90 ribosomal s6 kinase family (1-4) is a group of highly conserved Ser/Thr kinases that act as downstream effectors of the Ras/Raf/MEK/ERK signaling pathway. They regulate diverse cellular processes, such as cell growth, cell motility, cell survival and cell proliferation. The p70 ribosomal protein S6 kinase, an important member of AGC family, is a kind of multifunctional Ser/Thr kinases, which plays an important role in mTOR signaling cascade. The p70 ribosomal protein S6 kinase is closely associated with diverse cellular processes such as protein synthesis, mRNA processing, glucose homeostasis, cell growth and apoptosis.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-156498
    RMC-7977
    Inhibitor 99.48%
    RMC-7977 is an orally active triple-complex RAS inhibitor that can simultaneously bind to cyclophilin A (CYPA) (Kd = 195 nM) and KRAS (G12V) (Kd = 292 μM). It exhibits broad-spectrum inhibitory activity against KRAS, NRAS, and HRAS proteins and their various wild-type and mutant variants. RMC-7977 induces apoptosis by inhibiting the phosphorylation of ERK, CRAF, and RSK, as well as increasing PARP cleavage. This leads to tumor regression, reduces resistance in KRASG12C cancer models, and demonstrates good tolerability across various RAS cancer models.
    RMC-7977
  • HY-10510
    BI-D1870
    Inhibitor 99.43%
    BI-D1870 is an ATP-competitive, cell permeable and brain penetrated inhibitor of RSK isoforms, with IC50s of 31 nM/24 nM/18 nM/15 nM for RSK1/RSK2/RSK3/RSK4, respectively.
    BI-D1870
  • HY-15773
    PF-4708671
    Inhibitor 99.87%
    PF-4708671 is a potent cell-permeable S6K1 inhibitor with a Ki of 20 nM and IC50 of 160 nM.
    PF-4708671
  • HY-N0643
    Carnosol
    Inhibitor 99.90%
    Carnosol is a potent Ribosomal S6 Kinase (RSK2) inhibitor that could be useful for treating gastric cancer, with an IC50 of ~5.5 μM. Carnosol, a Nrf2 activator, increases the nuclear levels of Nrf2 and can promote the expression of heme oxygenase 1 (HMOX1).
    Carnosol
  • HY-N0418
    Quercitrin
    Inhibitor 99.82%
    Quercitrin (Quercetin 3-rhamnoside) is a bioflavonoid compound with potential anti-inflammation, antioxidative and neuroprotective effect. Quercitrin induces apoptosis of colon cancer cells. Quercitrin can be used for the research of cardiovascular and neurological disease research.
    Quercitrin
  • HY-180897
    RSK4-IN-2
    Inhibitor
    RSK4-IN-2 (compound 16o) is a potent, orally active RSK4 inhibitor with an IC50 of 17 nM. RSK4-IN-2 suppresses esophageal squamous cell carcinoma (ESCC) cell growth and invasion, by inhibiting phosphorylation of RSK4 downstream targets. RSK4-IN-2 inhibits tumor growth and metastasis in ESCC mouse models. RSK4-IN-2 can be used for ESCC research.
    RSK4-IN-2
  • HY-181650
    T133
    Inhibitor
    T133 is an orally active ATP-competitive mTOR inhibitor with an IC50 of 0.34 nM and a Ki of 0.17 nM. T133 suppresses phosphorylation of AKT, S6K1, and 4EBP1. T133 inhibits cancer cell proliferation and migration, induces apoptosis, cell cycle arrest, and autophagy. T133 exhibits dose-dependent antitumor efficacy in xenograft mouse models. T133 can be used for the research of cancer, such as gastric cancer and lung cancer.
    T133
  • HY-N13338
    Avicin D
    Inhibitor
    Avicin D is a plant triterpenoid. Avicin D induces Autophagy by activation of AMPK. Avicin D inhibits mTOR and S6 kinase activity. Avicin D selectively induces Apoptosis and downregulates p-STAT-3, bcl-2, and Survivin. Avicin D has properties of being a selective Glucocorticoid receptor modulator. Avicin D inhibits NF-κB activation. Avicin D shows anti-tumor effects against cutaneous T-cell lymphomas.
    Avicin D
  • HY-12493A
    LY-2584702 tosylate salt
    Inhibitor 99.50%
    LY-2584702 tosylate salt is a selective ATP competitive inhibitor of p70S6K with an IC50 of 4 nM. In S6K1 enzyme assay, the IC50 of LY-2584702 is 2 nM.
    LY-2584702 tosylate salt
  • HY-B0167A
    Sodium Salicylate
    Inhibitor 99.99%
    Sodium Salicylate (Salicylic acid sodium salt) inhibits cyclo-oxygenase-2 (COX-2) activity independently of transcription factor (NF-κB) activation. Sodium Salicylate is also a S6K inhibitor.Sodium Salicylate is a NF-κB inhibitor that decreases inflammatory gene expression and improves repair in aged muscle.
    Sodium Salicylate
  • HY-136848
    SM1-71
    Inhibitor
    SM1-71 (compound 5) is a potent TAK1 inhibitor, with a Ki of 160 nM, it also can covalently inhibit MKNK2, MAP2K1/2/3/4/6/7, GAK, AAK1, BMP2K, MAP3K7, MAPKAPK5, GSK3A/B, MAPK1/3, SRC, YES1, FGFR1, ZAK (MLTK), MAP3K1, LIMK1 and RSK2. SM1-71 can inhibit proliferation of multiple cancer cell lines.
    SM1-71
  • HY-19713
    LJI308
    Inhibitor 99.07%
    LJI308 is a potent pan-ribosomal S6 kinase (RSK) inhibitor, with IC50s of 6 nM, 4 nM, and 13 nM for RSK1, RSK2, and RSK3, respectively. LJI308 inhibits the phosphorylation of RSK (T359/S363) and YB-1 (S102) after irradiation, treatment with EGF, and in cells expressing a KRAS mutation.
    LJI308
  • HY-103100
    SB-699551
    Inhibitor 99.53%
    SB-699551 is a selective and brain penetrant 5-HT5A receptor antagonist with a pKi of 8.2 nM. SB-699551 shows high selectivity over most other 5-HT receptor subtypes, dopamine receptors, and α1B adrenoceptor. SB-699551 disrupts Gαi/o-coupled and PI3K/AKT/mTOR signaling pathways, alters CREB, ATF1, AKT, PRAS40, S6K, and FOXO1 phosphorylation in breast tumor cells. SB-699551 can be used for the research of anxiety, breast cancer, and Alzheimer's disease.
    SB-699551
  • HY-N1437
    Hydroxycitric acid
    Activator 99.95%
    Hydroxycitric acid is an orally active, multi-target, multi-bioactive organic acid. activates Nrf2 and its downstream molecule GPX4, increases glutathione levels, and thereby inhibits ferroptosis. Hydroxycitric acid activates the Nrf2/Keap1 and ACLY/NF-κB signaling pathways, upregulates the activities of antioxidant enzymes such as superoxide dismutase, reduces MDA content, thereby alleviating oxidative stress and renal tubular epithelial cell apoptosis, and improves pulmonary vascular and right ventricular remodeling. Hydroxycitric acid activates both the AMPK and mTORC1/S6K pathways, triggers the unfolded protein response, arrests the cancer cell cycle, and induces DNA fragmentation.
    Hydroxycitric acid
  • HY-19712
    LJH685
    Inhibitor 99.64%
    LJH685 is a potent, ATP-competitive and selective RSK inhibitor, inhibits RSK1, 2, and 3 biochemical activities with IC50s of 6, 5, 4 nM, respectively.
    LJH685
  • HY-10579
    Pluripotin
    Inhibitor 98.86%
    Pluripotin is a dual inhibitor of ERK1 and RasGAP with KDs of 98 nM and 212 nM, respectively. Pluripotin also inhibits RSK1, RSK2, RSK3, and RSK4 with IC50s of 0.5, 2.5, 3.3, and 10.0 μM, respectively.
    Pluripotin
  • HY-12059
    AT7867
    Inhibitor 99.85%
    AT7867 is a potent ATP-competitive inhibitor of Akt1/Akt2/Akt3 and p70S6K/PKA with IC50s of 32 nM/17 nM/47 nM and 85 nM/20 nM, respectively.
    AT7867
  • HY-16071
    AT13148
    Inhibitor 99.20%
    AT13148 is an orally active and ATP-competitive, multi-AGC kinase inhibitor with IC50s of 38 nM/402 nM/50 nM, 8 nM, 3 nM, and 6 nM/4 nM for Akt1/2/3, p70S6K, PKA, and ROCKI/II, respectively.
    AT13148
  • HY-52101A
    FMK
    Inhibitor 99.83%
    FMK is a an irreversible RSK2 kinase inhibitor, that covalently modifies the C-terminal kinase domain of RSK.
    FMK
  • HY-16104
    BIX 02565
    Inhibitor 99.61%
    BIX 02565 is a potent ribosomal S6 kinase 2 (RSK2) inhibitor with IC50 of 1.1 nM.
    BIX 02565
Cat. No. Product Name / Synonyms Application Reactivity

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