FLAP (Arachidonate 5-lipoxygenase-activating protein) is a protein that in humans is encoded by the ALOX5AP gene. FLAP is necessary for the activation of 5-lipoxygenase and therefore for the production of leukotrienes. It is an integral protein within the nuclear membrane. FLAP is necessary in synthesis of leukotriene, which are lipid mediators of inflammation that is involved in respiratory and cardiovascular diseases. FLAP functions as a membrane anchor for 5-lipooxygenase and as an amine acid-bind protein. Gene polymorphisms in FLAP are suspected of playing a role in Alzheimer's disease. Leukotrienes, which need the FLAP protein to be made, have an established pathological role in allergic and respiratory diseases. Animal and human genetic evidence suggests they may also have an important role in atherosclerosis, myocardial infarction, and stroke. The structure of FLAP provides a tool for the development of novel therapies for respiratory and cardiovascular diseases and for the design of focused experiments to probe the cell biology of FLAP and its role in leukotriene biosynthesis.


Anti-infection >
Arenavirus Bacterial CMV Enterovirus Filovirus Fungal HBV HCV HIV HSV Influenza Virus Parasite Reverse Transcriptase RSV SARS-CoV
Antibody-drug Conjugate >
ADC Cytotoxin ADC Linker Drug-Linker Conjugates for ADC PROTAC-linker Conjugate for PAC
Apoptosis >
Apoptosis Bcl-2 Family c-Myc Caspase DAPK Ferroptosis IAP MDM-2/p53 PKD RIP kinase Survivin Thymidylate Synthase TNF Receptor
Autophagy >
Autophagy LRRK2 ULK Mitophagy
Cell Cycle/DNA Damage >
Antifolate APC ATM/ATR Aurora Kinase Casein Kinase CDK Checkpoint Kinase (Chk) CRISPR/Cas9 Deubiquitinase DNA Alkylator/Crosslinker DNA-PK DNA/RNA Synthesis Eukaryotic Initiation Factor (eIF) G-quadruplex Haspin Kinase HDAC HSP IRE1 Kinesin LIM Kinase (LIMK) Microtubule/Tubulin Mps1 Nucleoside Antimetabolite/Analog p97 PAK PARP PERK Polo-like Kinase (PLK) PPAR RAD51 ROCK Sirtuin SRPK Telomerase TOPK Topoisomerase Wee1
Cytoskeleton >
Arp2/3 Complex Dynamin Gap Junction Protein Integrin Kinesin Microtubule/Tubulin Mps1 Myosin PAK
Epigenetics >
AMPK Aurora Kinase DNA Methyltransferase Epigenetic Reader Domain HDAC Histone Acetyltransferase Histone Demethylase Histone Methyltransferase JAK MicroRNA PARP PKC Sirtuin Protein Arginine Deiminase
GPCR/G Protein >
5-HT Receptor Adenosine Receptor Adenylate Cyclase Adiponectin Receptor Adrenergic Receptor Angiotensin Receptor Bombesin Receptor Bradykinin Receptor Cannabinoid Receptor CaSR CCR CGRP Receptor Cholecystokinin Receptor CRFR CXCR Dopamine Receptor EBI2/GPR183 Endothelin Receptor GHSR Glucagon Receptor Glucocorticoid Receptor GNRH Receptor GPCR19 GPR109A GPR119 GPR120 GPR139 GPR40 GPR55 GPR84 Guanylate Cyclase Histamine Receptor Imidazoline Receptor Leukotriene Receptor LPL Receptor mAChR MCHR1 (GPR24) Melatonin Receptor mGluR Motilin Receptor Neurokinin Receptor Neuropeptide Y Receptor Neurotensin Receptor Opioid Receptor Orexin Receptor (OX Receptor) Oxytocin Receptor P2Y Receptor Prostaglandin Receptor Protease-Activated Receptor (PAR) Ras RGS Protein Sigma Receptor Somatostatin Receptor TSH Receptor Urotensin Receptor Vasopressin Receptor Melanocortin Receptor
Immunology/Inflammation >
Aryl Hydrocarbon Receptor CCR Complement System COX CXCR FLAP Histamine Receptor IFNAR Interleukin Related IRAK MyD88 NO Synthase NOD-like Receptor (NLR) PD-1/PD-L1 PGE synthase Salt-inducible Kinase (SIK) SPHK STING Thrombopoietin Receptor Toll-like Receptor (TLR) Arginase
JAK/STAT Signaling >
EGFR JAK Pim STAT
MAPK/ERK Pathway >
ERK JNK KLF MAP3K MAP4K MAPKAPK2 (MK2) MEK Mixed Lineage Kinase MNK p38 MAPK Raf Ribosomal S6 Kinase (RSK)
Membrane Transporter/Ion Channel >
ATP Synthase BCRP Calcium Channel CFTR Chloride Channel CRAC Channel CRM1 EAAT2 GABA Receptor GlyT HCN Channel iGluR Monoamine Transporter Monocarboxylate Transporter Na+/Ca2+ Exchanger Na+/HCO3- Cotransporter Na+/K+ ATPase nAChR NKCC P-glycoprotein P2X Receptor Potassium Channel Proton Pump SGLT Sodium Channel TRP Channel URAT1
Metabolic Enzyme/Protease >
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 >
5-HT Receptor AChE Adenosine Kinase Amyloid-β Beta-secretase CaMK CGRP Receptor COMT Dopamine Receptor Dopamine Transporter FAAH GABA Receptor GlyT iGluR Imidazoline Receptor mAChR Melatonin Receptor Monoamine Oxidase nAChR Neurokinin Receptor Opioid Receptor Serotonin Transporter γ-secretase
NF-κB >
NF-κB IKK Keap1-Nrf2 MALT1
PI3K/Akt/mTOR >
Akt AMPK ATM/ATR DNA-PK GSK-3 MELK mTOR PDK-1 PI3K PI4K PIKfyve PTEN
PROTAC >
PROTAC E3 Ligase Ligand-Linker Conjugate Ligand for E3 Ligase PROTAC Linker PROTAC-linker Conjugate for PAC
Protein Tyrosine Kinase/RTK >
Ack1 ALK Bcr-Abl BMX Kinase Btk c-Fms c-Kit c-Met/HGFR Discoidin Domain Receptor DYRK EGFR Ephrin Receptor FAK FGFR FLT3 IGF-1R Insulin Receptor IRAK Itk PDGFR PKA Pyk2 ROS Src Syk TAM Receptor Trk Receptor VEGFR
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
Others >
Androgen Receptor Aromatase Estrogen Receptor/ERR Progesterone Receptor Thyroid Hormone Receptor Others

MK-886 (sodium salt)

MK-886 (L 663536) sodium salt is a potent, cell-permeable and orally active FLAP (IC50 of 30 nM) and leukotriene biosynthesis (IC50s of 3 nM and 1.1 μM in intact leukocytes and human whole blood, respectively) inhibitor. MK-886 sodium salt is also a non-competitive PPARα antagonist and can induce apoptosis[1][2][3].

  • CAS Number: 118427-55-7
  • MF: C27H33ClNNaO2S
  • MW: 494.06
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

GSK2190915 (sodium salt)

Fiboflapon sodium (GSK2190915 (sodium salt)) is a potent FLAP(5-Lipoxygenase-activating protein) inhibitor with binding IC50 of 2.9 nM.

  • CAS Number: 1196070-26-4
  • MF: C38H42N3NaO4S
  • MW: 659.81300
  • Catalog: FLAP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

FEN1-IN-6

FEN1-IN-6 (compound 9) is a potent inhibitor of Flap endonuclease-1 (FEN1, IC50=10 nM), involving in mammalian cells to repair DNA damage. FEN1-IN-6 also targets to related endonuclease, xeroderma pigmentosum G (XPG) with an IC50 value of 23 nM[1].

  • CAS Number: 824983-84-8
  • MF: C12H8N2O5S2
  • MW: 324.33
  • Catalog: FLAP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

GSK2190915

Fiboflapon (GSK2190915) is a potent FLAP(5-Lipoxygenase-activating protein) inhibitor with binding IC50 of 2.9 nM.

  • CAS Number: 936350-00-4
  • MF: C38H43N3O4S
  • MW: 637.83100
  • Catalog: FLAP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

AM679

AM679 is a potent and selective FLAP inhibitor with IC50s of 2.2 nM/0.6 nM/154 nM for FLAP binding/hLA/hWB respectively. IC50 value: 2.2 nM/0.6 nM/154 nM(FLAP binding/hLA/hWB) [1]Target: FLAPin vitro: AM679 showed excellent in vitro inhibition against FLAP. AM679 has an excellent hWB IC50 potency of 154 nM. AM679 showed an improved CYP inhibition profile (IC50 3A4 = 16.7 lM, 2C9 = 3.7 lM, 2D6 >30 lM), no time dependent inhibition against CYP3A4 (0.003 min-1 vs 0.057 min-1 for troleandomycin control 10 uM) and no CYP3A4 induction.in vivo: AM679 was profiled in a rodent bronchoalveolar lavage (BAL) model to measure its ability to inhibit production ofleukotrienes in vivo.16 Oral administration of 39 (10 mg/kg as the sodium carboxylate salt) 4 h prior to ionophore challenge reduced LTB4 and CysLT levels in the rodent lung lavage fluid by 98% and 87%, respectively, with corresponding average rodent plasma levels of 605 nM (3 h post dose, rat blood LTB4 IC50 = 125 nM).

  • CAS Number: 1206880-66-1
  • MF: C40H44N4O5S
  • MW: 692.86600
  • Catalog: FLAP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

3-(2,4-Dihydroxybenzylidene)-5-(4-methoxyphenyl)-2(3H)-furanone

ALR-6 is an antagonist of the 5-lipoxygenase (5-LOX) activating protein FLAP and has anti-inflammatory activity. ALR-6 potently inhibits 5-LOX product formation (>80%) in pro-inflammatory M1-MDM and has no significant effect on direct inhibition of 5-LOX[1].

  • CAS Number: 6621-92-7
  • MF: C18H14O5
  • MW: 310.30100
  • Catalog: FLAP
  • Density: 1.408g/cm3
  • Boiling Point: 617.2ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 231.7ºC

ALR-27

ALR-27 is an antagonist of the 5-lipoxygenase (5-LOX) activating protein FLAP and has anti-inflammatory activity. ALR-27 potently inhibits 5-LOX product formation (>80%) in pro-inflammatory M1-MDM, with no significant direct inhibition of 5-LOX. ALR-27 not only reduces prostaglandin and leukotriene (LT) production in neutrophils but also increases the production of specialized prolytic mediators in specific human macrophage phenotypes[1].

  • CAS Number: 903639-13-4
  • MF: C19H22O3
  • MW: 298.38
  • Catalog: FLAP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

(S)-BI 665915

(S)-BI 665915 is an orally active oxadiazole-containing 5-lipoxygenase-activating protein (FLAP) inhibitor with an IC50 of 1.7 nM for FLAP binding. (S)-BI 665915 inhibits FLAP functional in human whole blood with an IC50 of 45 nM. (S)-BI 665915 demonstrates an excellent cross-species drug metabolism and pharmacokinetics (DMPK) profile and a dose-dependent inhibition of LTB4 production[1].

  • CAS Number: 1360550-05-5
  • MF: C24H26N8O2
  • MW: 458.52
  • Catalog: FLAP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MK886

MK886 is a 5-lipoxygenase-activating protein inhibitor and a leukotriene biosynthesis inhibitor (IC50=2.5 nM).

  • CAS Number: 118414-82-7
  • MF: C27H34ClNO2S
  • MW: 472.08
  • Catalog: FLAP
  • Density: 1.14g/cm3
  • Boiling Point: 623.4ºC at 760mmHg
  • Melting Point: 295-297ºC
  • Flash Point: 330.8ºC

MK591

MK591 is a selective and specific 5-Lipoxygenase-activating protein (FLAP) inhibitor.

  • CAS Number: 147030-01-1
  • MF: C34H34ClN2NaO3S
  • MW: 609.15300
  • Catalog: FLAP
  • Density: N/A
  • Boiling Point: 751.3ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 408.2ºC

AM 103

AM 103 is a potent and selective FLAP inhibitor, with an IC50 value of 4.2 nM.

  • CAS Number: 1147872-22-7
  • MF: C36H40N3NaO4S
  • MW: 633.78
  • Catalog: FLAP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

FEN1-IN-5

FEN1-IN-5 (compound 12A) is a potent inhibitor of Flap endonuclease-1 (FEN1, IC50=12 nM), involving in DNA repair[1].

  • CAS Number: 824983-93-9
  • MF: C21H17N3O4S
  • MW: 407.44
  • Catalog: FLAP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

(S)-Veliflapon

(S)-Veliflapon ((S)-BAY X 1005; (S)-DG-031) is an orally active inhibitor of leukotriene biosynthesis and 5-lipoxygenase activating protein (FLAP). (S)-Veliflapon inhibits the formation of leukotriene B4 (LTB4) in rat, mouse and human leukocytes with IC50 values of 0.026 µM, 0.039 µM and 0.22 µM respectively. (S)-Veliflapon showes enantioselectivity in human whole blood[1][2][3].

  • CAS Number: 128253-32-7
  • MF: C23H23NO3
  • MW: 361.43
  • Catalog: Leukotriene Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

FEN1-IN-7

FEN1-IN-7 (compound 16) is a selective inhibitor of Flap endonuclease-1 (FEN1, IC50=18 nM), involving in mammalian cells to repair DNA damage. FEN1-IN-7 also targets to related endonuclease, xeroderma pigmentosum G (XPG) with an IC50 value of 3.04 μM. FEN1-IN-7 increases the cellular sensitivity of cancer cells to potent DNA alkylating agents or methylating agents[1].

  • CAS Number: 824983-90-6
  • MF: C16H14N2O6S
  • MW: 362.36
  • Catalog: FLAP
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MK-0591

MK591 (free acid) is a selective and specific 5-Lipoxygenase-activating protein (FLAP) inhibitor with an IC50 value of 1.6 nM in a FLAP binding assay.

  • CAS Number: 136668-42-3
  • MF: C34H35ClN2O3S
  • MW: 587.171
  • Catalog: FLAP
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 751.3±60.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 408.2±32.9 °C