1. Cell Cycle/DNA Damage
  2. PAK


PAKs (p21-activated kinases) are key regulators of actin dynamics, cell proliferation and cell survival. PAKs are Ser/Thr kinases that are classified into two groups on the basis of their structural and functional features: group I (PAK1–3) and group II (PAK4–6). Group I PAKs have an auto-inhibitory domain (also called an inhibitory switch domain) and a kinase domain (catalytic domain, CD) and are activated by the binding of the active (that is, GTP-bound) forms of Rho GTPases, such as Cdc42 and Rac1. Group II PAKs have no auto-inhibitory domains and are not activated by active Rho GTPases. Because the deregulation of PAKs is closely associated with various human diseases,small-molecule inhibitors of these kinases have great potential as therapeutic agents. In addition, these compounds can also be used as powerful tools in studies aimed at understanding the PAK signaling pathway.

PAKs are considered prime regulators of the actin cytoskeleton and motility. Due to their central role in actin remodelling and their ability to activate Matrix metalloproteinases (MMPs), Rho GTPases play an important role in tumor cell invasion and metastasis. The current evidence suggests the involvement of PAKs in motility, cell survival, anchorage-independent growth, angiogenesis, invasion, migration and regulation of cell cycle and mitosis. Consequently, PAKs have also been implicated in a number of pathological conditions including cancer.

PAK Related Products (8):

Cat. No. Product Name Effect Purity
  • HY-13007
    PF-3758309 Inhibitor
    PF-3758309 is an inhbitor of PAK with IC50 of 1.3 nM for PAK4.
  • HY-15542B
    FRAX486 Inhibitor
    FRAX486 is a p21-activated kinase (PAK) inhibitor with IC50s of 14, 33 and 39 nM for PAK1, PAK2 and PAK3, respectively.
  • HY-19635
    G-5555 Inhibitor
    G-5555 is a potent p21-activated kinase 1 (PAK1) inhibitor with Kis of 3.7 nM and 11 nM for PAK1 and PAK2, respectively.
  • HY-15542A
    FRAX597 Inhibitor
    FRAX597 is a potent group I p21-activated Kinases (PAKs) inhibitor with IC50 of 8, 13 and 19 nM for PAK1, 2 and 3.
  • HY-15663
    IPA-3 Inhibitor
    IPA-3 is a selective non-ATP competitive PAK1 inhibitor with IC50 of 2.5 μM, and shows no inhibition to group II PAKs (PAKs 4-6).
  • HY-19538
    FRAX1036 Inhibitor
    FRAX1036 is a PAK inhibitor with Kis of 23.3 nM, 72.4 nM, and 2.4 μM for PAK1, PAK2 and PAK4, respectively.
  • HY-15027
    5-Aminosalicylic acid Inhibitor
    5-Aminosalicylic acid acts as a specific PPARγ agonist and also inhibits p21-activated kinase 1 (PAK1) and NF-κB.
  • HY-19635A
    G-5555 hydrochloride Inhibitor
    G-5555 hydrochloride is a potent and selective p21-activated kinase 1 (PAK1) inhibitor with a Ki of 3.7 nM.