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-112400
    Bisindolylmaleimide V
    Inhibitor
    Bisindolylmaleimide V is a cell-permeable negative control for protein kinase C inhibition studies with an IC50 value over 100 µM. Bisindolylmaleimide V blocks the activation of mitogen-stimulated protein kinase p70s6k/p85s6k (S6K) in vivo with an IC50 of 8 µM.
    Bisindolylmaleimide V
  • HY-N0418R
    Quercitrin (Standard)
    Inhibitor
    Quercitrin (Standard) is the analytical standard of Quercitrin. This product is intended for research and analytical applications. 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 (Standard)
  • HY-156027
    SIRT6-IN-3
    Inhibitor 98.19%
    SIRT6-IN-3 (compound 8a) is a selective inhibitor of SIRT6 (IC50=7.49 μM). SIRT6-IN-3 inhibits pancreatic ductal adenocarcinoma (PDAC) cells proliferation and induces apoptosis. SIRT6-IN-3 increases the sensitivity of cancer cells to gemcitabine (HY-17026) via blocking the DNA damage repair pathway. SIRT6-IN-3 is used in pancreatic cancer research.
    SIRT6-IN-3
  • HY-N3628
    Coronarin A
    Inhibitor ≥98.0%
    Coronarin A is an orally active natural compound that inhibits mTORC1 and S6K1 to increase IRS1 activity. Coronarin A shows anti-inflammatory activity and can also be used for type 2 diabetes mellitus research.
    Coronarin A
  • HY-P10042
    S6K Substrate
    Substrate
    S6K Substrate is a substrate for active protein kinases, including CLK2, MRCKalpha, MRCKbeta, p70S6K, ROCK1, ROCK2, RSK1, RSK3, PIM1.
    S6K Substrate
  • HY-175256
    RSK2-IN-5
    Inhibitor
    RSK2-IN-5 (compoud C24) is a p90 ribosomal S6 kinase 2 (RSK2) inhibitor with a Kd of 317 ​nM. RSK2-IN-5 exhibits antitumor activity against breast cancer and melanoma cancer cells.
    RSK2-IN-5
  • HY-12493
    LY-2584702 free base
    Inhibitor 99.56%
    LY-2584702 free base 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 free base
  • HY-132302A
    Hu7691 free base
    Inhibitor
    Hu7691 free base is an orally active, selective Akt inhibitor with IC50s of 4.0 nM, 97.5 nM, 28 nM for Akt1, Akt2 and Akt3, respectively. Hu7691 free base inhibits tumor growth and enables decrease of cutaneous toxicity in mice.
    Hu7691 free base
  • HY-N0643R
    Carnosol (Standard)
    Inhibitor
    Carnosol (Standard) is the analytical standard of Carnosol. This product is intended for research and analytical applications. 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 (Standard)
  • HY-101029A
    MBM-55S
    Inhibitor
    MBM-55S is a potent NIMA-related kinase 2 (Nek2) inhibitor with an IC50 of 1 nM. MBM-55S shows a 20-fold or greater selectivity in most kinases with the exception of RSK1 (IC50=5.4 nM) and DYRK1a (IC50=6.5 nM). MBM-55S effectively inhibits the proliferation of cancer cells by inducing cell cycle arrest and apoptosis. MBM-55S shows antitumor activities, and no obvious toxicity to mice.
    MBM-55S
  • HY-W011109
    CKI-7
    Inhibitor
    CKI-7 is a potent and ATP-competitive casein kinase 1 (CK1) inhibitor with an IC50 of 6 μM and a Ki of 8.5 μM. CKI-7 is a selective Cdc7 kinase inhibitor. CKI-7 also inhibits SGK, ribosomal S6 kinase-1 (S6K1) and mitogen- and stress-activated protein kinase-1 (MSK1). CKI-7 has a much weaker effect on casein kinase II and other protein kinases.
    CKI-7
  • HY-P5449
    p70 S6 Kinase substrate
    p70 S6 Kinase substrate is a biological active peptide. (This peptide is a substrate for p70 ribosomal S6 kinase.)
    p70 S6 Kinase substrate
  • HY-125911R
    Gossypin (Standard)
    Inhibitor
    Gossypin (Standard) is the analytical standard of Gossypin. This product is intended for research and analytical applications. Gossypin is an orally active flavone isolated from Hibiscus vitifolius. Gossypin has antioxidant, antiinflammatory, anticancer, anticataract, antidiabetic, and hepatoprotective activities. Gossypin inhibits NF-κB and NF-κB-regulated gene expression. Gossypin inhibits AURKA and RSK2. Gossypin inhibits invasion and induces apoptosis. Gossypin can be used for gastric cancer study.
    Gossypin (Standard)
  • HY-172392
    HSND80
    Inhibitor
    HSND80 (Compound 1) is an orally active inhibitor of MNK/p70S6K, with Kd values of 44 nM against MNK1 and 4 nM against MNK2. HSND80 has a longer target residence time of 45 mins and 58 mins against MNK1 and MNK2 respectively. HSND80 can suppress non-small cell lung cancer (NSCLC) both in vitro and in vivo, and suppress Triple-Negative Breast Cancer (TNBC) in vitro.
    HSND80
  • HY-P3054
    S6 peptide
    S6 peptide is a potentially important lamin kinase. S6 peptide is involved in the process of cardiac hypertrophy induced by mechanical loading. S6 peptide can be activated by many kinds of growth factors.
    S6 peptide
  • HY-150643
    RSK2-IN-2
    Inhibitor
    RSK2-IN-2 (Compound 25) is a reversible covalent inhibitor of the RPS6KA3 (RSK2) kinase. RSK2-IN-2 is also described to inhibit MSK1, MSK2 and RSK3.
    RSK2-IN-2
  • HY-P3814
    S6 Kinase Substrate Peptide 32
    S6 Kinase Substrate Peptide 32 is a substrate of Ribosomal S6 Kinase (RSK). S6 Kinase Substrate Peptide 32 can be used to measure the activity of RSKs which phosphorylate ribosomal protein S6.
    S6 Kinase Substrate Peptide 32
  • HY-144434
    RSK-IN-1
    Inhibitor
    RSK-IN-1 (compound 7d) is a RSK inhibitor that inhibits the YB-1 phosphorylation. RSK-IN-1 has anti-tumor effects.
    RSK-IN-1
  • HY-175646
    AGPAT4-IN-1
    Inhibitor
    AGPAT4-IN-1 (Compound CL26) is a covalent AGPAT4 inhibitor with an IC50 of 795 nM. AGPAT4-IN-1 covalently binds to AGPAT4 at Cys228 and significantly inhibits acyltransferase activity, LPA-to-PA conversion and downstream mTOR/S6K pathways. AGPAT4-IN-1 sensitizes hepatocellular carcinoma (HCC) tumors to Sorafenib (HY-10201) and significantly induces apoptosis with a synergistic response. AGPAT4-IN-1 has antitumor activity and reduces tumorigenicity and stemness in HCC xenograft mouse models.
    AGPAT4-IN-1
  • HY-112774A
    ICSN3250 hydrochloride
    Inhibitor
    ICSN3250 hydrochloride is a halitulin analogue and a selective mTORC1 inhibitor. ICSN3250 hydrochloride directly binds to mTOR's FRB domain and displaces phosphatidic acid (PA), reversing mTORC1 activation. ICSN3250 hydrochloride shows high cytotoxicity in cancer cells (nanomolar concentration) through a caspase-independent cell death mechanism. ICSN3250 hydrochloride specifically inhibits the mTORC1 pathway, inducing autophagy and G0-G1 cell-cycle arrest in cancer cells. ICSN3250 hydrochloride can be used for the study of cancer .
    ICSN3250 hydrochloride
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