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.


Anti-infection >
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Antibody-drug Conjugate >
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Apoptosis >
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Cytoskeleton >
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JAK/STAT Signaling >
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15-PGDH 5 alpha Reductase 5-Lipoxygenase Acetyl-CoA Carboxylase Acyltransferase Adenosine Deaminase Adenosine Kinase Aldehyde Dehydrogenase (ALDH) Aldose Reductase Aminopeptidase Angiotensin-converting Enzyme (ACE) ATGL ATP Citrate Lyase Carbonic Anhydrase Carboxypeptidase Cathepsin CETP COMT Cytochrome P450 Dipeptidyl Peptidase Dopamine β-hydroxylase E1/E2/E3 Enzyme Elastase Enolase FAAH FABP Factor Xa Farnesyl Transferase Fatty Acid Synthase (FAS) FXR Glucokinase GSNOR Gutathione S-transferase HCV Protease Hexokinase HIF/HIF Prolyl-Hydroxylase HIV Integrase HIV Protease HMG-CoA Reductase (HMGCR) HSP Indoleamine 2,3-Dioxygenase (IDO) Isocitrate Dehydrogenase (IDH) Lactate Dehydrogenase LXR MAGL Mineralocorticoid Receptor Mitochondrial Metabolism MMP Nampt NEDD8-activating Enzyme Neprilysin PAI-1 PDHK PGC-1α Phosphatase Phosphodiesterase (PDE) Phospholipase Procollagen C Proteinase Proteasome Pyruvate Kinase RAR/RXR Renin ROR Ser/Thr Protease SGK Stearoyl-CoA Desaturase (SCD) Thrombin Tryptophan Hydroxylase Tyrosinase Xanthine Oxidase
Neuronal Signaling >
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NF-κB >
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PI3K/Akt/mTOR >
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PROTAC >
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Protein Tyrosine Kinase/RTK >
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Stem Cell/Wnt >
Casein Kinase ERK Gli GSK-3 Hedgehog Hippo (MST) JAK Notch Oct3/4 PKA Porcupine ROCK sFRP-1 Smo STAT TGF-beta/Smad Wnt YAP β-catenin γ-secretase
TGF-beta/Smad >
TGF-beta/Smad PKC ROCK TGF-β Receptor
Vitamin D Related >
VD/VDR
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NVS-PAK1-1

NVS-PAK1-1 is a potent and selective allosteric PAK1 inhibitor with an IC50 of 5 nM.

  • CAS Number: 1783816-74-9
  • MF: C23H25ClF3N5O
  • MW: 479.93
  • Catalog: PAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PF-3758309 hydrochloride

PF-3758309 hydrochloride is a potent, orally available, and reversible ATP-competitive inhibitor of PAK4 (Kd= 2.7 nM; Ki=18.7 nM). PF-3758309 hydrochloride has the expected cellular functions of a PAK4 inhibitor: inhibition of anchorage-independent growth, induction of apoptosis, cytoskeletal remodeling, and inhibition of proliferation[1][2][3].

  • CAS Number: 1279034-84-2
  • MF: C25H31ClN8OS
  • MW: 483.994
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

GNE 2861

PAK-IN-1 is a PAK inhibitor that displays group II selectivity. PAK-IN-1 inhibits PAK4, PAK5 and PAK6 with IC50s of 7.5, 36, 126 nM, respectively.

  • CAS Number: 1394121-05-1
  • MF: C22H26N6O2
  • MW: 406.48
  • Catalog: PAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

KY-04031

KY-04031 is a PAK4 inhibitor with IC50 of 0.79 uM, a basic building block in designing novel imidazo[4,5-b]pyridine-based PAK4 inhibitors.

  • CAS Number: 468056-29-3
  • MF: C21H20N8O
  • MW: 400.446
  • Catalog: PAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

IPA-3

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).

  • CAS Number: 42521-82-4
  • MF: C20H14O2S2
  • MW: 350.454
  • Catalog: PAK
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 543.7±35.0 °C at 760 mmHg
  • Melting Point: 172℃
  • Flash Point: 263.4±24.7 °C

Mesalamine impurity P

Mesalamine impurity P is an impurity of Mesalamine (HY-15027). 5-Aminosalicylic acid (Mesalamine) acts as a specific PPARγ agonist and also inhibits p21-activated kinase 1 (PAK1) and NF-κB[1].

  • CAS Number: 887256-40-8
  • MF: C13H11NO6S
  • MW: 309.294
  • Catalog: PAK
  • Density: 1.6±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Aza197

AZA197 is a selective small molecule inhibitor of Cdc42.AZA197 suppresses colon cancer cell proliferation, cell migration, invasion and increases apoptosis by down-regulating the PAK1 and ERK signaling pathways in vitro. AZA197 reduces tumor growth and significantly increases mouse survival in SW620 tumor xenografts[1].

  • CAS Number: 1249398-09-1
  • MF: C24H36N6
  • MW: 408.58
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PAK4-IN-1

PAK4-IN-1 (Compound 19) is a potent, selective, orally active PAK4 inhibitor with robust anti-tumor efficacy in vivo. PAK4-IN-1 is stable under both acidic and neutral conditions[1].

  • CAS Number: 2396529-58-9
  • MF: C26H30ClN7O5
  • MW: 556.01
  • Catalog: PAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

FRAX1036

FRAX1036 is a PAK inhibitor with Kis of 23.3 nM, 72.4 nM, and 2.4 μM for PAK1, PAK2 and PAK4, respectively.

  • CAS Number: 1432908-05-8
  • MF: C28H32ClN7O
  • MW: 518.053
  • Catalog: PAK
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 669.8±65.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 358.9±34.3 °C

Gardenin A

Gardenin A is an orally active and synthetic PMF analogue with the neurotrophic effect for neurite outgrowth and neuronal differentiation. Gardenin A promotes neuritogenesis via activating MAPK/ERK, PKC, and PKA, but not TrkA, CREB signaling pathways. Gardenin A also has sedative, anxiolytic, antidepressant, and anticonvulsant effects[1][2].

  • CAS Number: 21187-73-5
  • MF: C21H22O9
  • MW: 418.39400
  • Catalog: PAK
  • Density: 1.3g/cm3
  • Boiling Point: 624.2ºC at 760 mmHg
  • Melting Point: 162-163ºC
  • Flash Point: 218.5ºC

5-Aminosalicylic Acid

5-Aminosalicylic acid acts as a specific PPARγ agonist and also inhibits p21-activated kinase 1 (PAK1) and NF-κB.

  • CAS Number: 89-57-6
  • MF: C7H7NO3
  • MW: 153.135
  • Catalog: PAK
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 380.8±32.0 °C at 760 mmHg
  • Melting Point: 275-280 °C (dec.)(lit.)
  • Flash Point: 184.1±25.1 °C

LCH-7749944

LCH-7749944 (GNF-PF-2356) is a potent PAK4 inhibitor with an IC50 of 14.93 μM. LCH-7749944 effectively suppresses the proliferation of human gastric cancer cells through downregulation of PAK4/c-Src/EGFR/cyclin D1 pathway and induces apoptosis[1].

  • CAS Number: 796888-12-5
  • MF: C20H22N4O2
  • MW: 350.414
  • Catalog: Apoptosis
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 580.0±58.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 304.6±32.3 °C

5-Aminosalicylic acid-d3

5-Aminosalicylic acid-d3 is the deuterium labeled 5-Aminosalicylic Acid. 5-Aminosalicylic acid (Mesalamine) acts as a specific PPARγ agonist and also inhibits p21-activated kinase 1 (PAK1) and NF-κB[1][2][3][4].

  • CAS Number: 1309283-32-6
  • MF: C7H4D3NO3
  • MW: 156.154
  • Catalog: PAK
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 403.9±40.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 198.1±27.3 °C

PAK4-IN-2

PAK4-IN-2 is a highly potent PAK4 inhibitor with IC50 value of 2.7 nM. PAK4-IN-2 can arrest MV4-11 cells at G0/G1 phase and induce cell apoptosis. PAK4-IN-2 can be used for researching cancer[1].

  • CAS Number: 2488706-33-6
  • MF: C18H21ClN6
  • MW: 356.85
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

5-Aminosalicylic acid-13C6

5-Aminosalicylic acid-13C6 is the 13C labeled 5-Aminosalicylic Acid[1]. 5-Aminosalicylic acid (Mesalamine) acts as a specific PPARγ agonist and also inhibits p21-activated kinase 1 (PAK1) and NF-κB[2][3][4].

  • CAS Number: 1189709-96-3
  • MF: C7H7NO3
  • MW: 159.09100
  • Catalog: PAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

FRAX 597

FRAX597 is a potent group I p21-activated Kinases (PAKs) inhibitor with IC50 of 8, 13 and 19 nM for PAK1, 2 and 3.

  • CAS Number: 1286739-19-2
  • MF: C29H28ClN7OS
  • MW: 558.10
  • Catalog: PAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PAK1-IN-1

PAK1-IN-1 is a potent and selective PAK1 inhibitor with an IC50 of 9.8 nM. PAK1-IN-1 inhibits the migration and invasion of PAK1-related tumour cells in a dose-dependent manner[1].

  • CAS Number: 2485732-30-5
  • MF: C26H20ClN5O2
  • MW: 469.92
  • Catalog: PAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

FRAX 486

FRAX486 is a p21-activated kinase (PAK) inhibitor with IC50s of 14, 33 and 39 nM for PAK1, PAK2 and PAK3, respectively.

  • CAS Number: 1232030-35-1
  • MF: C25H23Cl2FN6O
  • MW: 513.39400
  • Catalog: PAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

st-Ht31

st-Ht31 is a membrane-permeable peptide inhibitor of protein kinase A (PKA) anchoring. st-Ht31 induces robust cholesterol/phospholipid efflux. st-Ht31 completely reverses foam cell formation and restores the metabolic health of macrophage[1][2].

  • CAS Number: 188425-80-1
  • MF: C129H217N29O39
  • MW: 2798.32
  • Catalog: PAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

KPT-9274

KPT-9274 is an orally bioavailable, dual PAK4/Nicotinamide phosphoribosyltransferase (Nampt) inhibitor, with IC50s less than 100 and 120 nM, respectively.

  • CAS Number: 1643913-93-2
  • MF: C35H29F3N4O3
  • MW: 610.625
  • Catalog: PAK
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 857.5±65.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 472.4±34.3 °C

ZMF-10

ZMF-10 is a highly potent PAK1 inhibitor, with IC50s of 174 nM, 1.038 μM and 1.372 μM for PAK1, PAK2 and PAK3, respectively. ZMF-10 can inhibit PAK1 activity to affect PAK1-regulated apoptosis, ER-Stress and migration in MDA-MB-231 cells. ZMF-10 can be used for researching anticancer[1].

  • CAS Number: 2415295-37-1
  • MF: C19H17F6N7O
  • MW: 473.37
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Nvs-pak1-c

NVS-PAK1-C is a potent, ATP-competitive and specific allosteric PAK1 inhibitor probe with IC50 values of 5 nM and 6 nM for dephosphorylated PAK1 and phosphorylated PAK1, respectively. NVS-PAK1-C is also against dephosphorylated PAK2 (IC50=270 nM) and phosphorylated PAK2 (IC50=720 nM)[1].

  • CAS Number: 2250019-95-3
  • MF: C22H23ClF3N5O
  • MW: 465.90
  • Catalog: PAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PF-3758309

PF-3758309 is an inhbitor of PAK with IC50 of 1.3 nM for PAK4.

  • CAS Number: 898044-15-0
  • MF: C25H30N8OS
  • MW: 490.624
  • Catalog: PAK
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 647.9±55.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 345.6±31.5 °C

ZINC194100678

ZINC194100678 is a potent PAK1 inhibitor with an IC50 value of 8.37 μM. ZINC194100678 can inhibit MDA-MB-231 cell proliferation. ZINC194100678 can be used for researching anticancer[1].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

G 5555

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.

  • CAS Number: 1648863-90-4
  • MF: C25H25ClN6O3
  • MW: 492.957
  • Catalog: PAK
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 684.6±65.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 367.8±34.3 °C

AZ 13705339

AZ13705339 is a potent, selective PAK1 inhibitor with IC50 of 0.33 nM, displays 14-, 470-, 4100- and 2600-fold selectivity over Src, FGFR1, KDR and PAK4; inhibits cellular pPAK1 inhibition in MCF10A cell line with IC50 of 59 nM.

  • CAS Number: 2016806-57-6
  • MF: C33H36FN7O3S
  • MW: 629.747
  • Catalog: PAK
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 868.7±75.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 479.2±37.1 °C