The PROTAC molecule itself contains three distinct portions: a ligand for binding to the target protein, a ligand for binding to an E3 ligase, and a linker joining these two ligands. PROTACs (proteolysis-targeting chimaeras) are bifunctional molecules that bring a target protein into spatial proximity with an E3 ubiquitin ligase to trigger target ubiquitination and subsequent proteasomal degradation. Effective redirection of ligase poly-ubiquitination activity toward a new substrate protein requires formation of a ligase:PROTAC:target ternary complex, an intermediate species that is crucial to the cellular activity of degrader molecules. A characteristic feature of PROTACs mode of action is their sub-stoichiometric catalytic activity that alleviates the requirement for target engagement and occupancy of traditional inhibitors. New PROTAC molecules designed guided by the crystal structure show exquisite selectivity for inducing cellular depletion of Brd4 over its BET family members Brd2 and Brd3.


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

MD-224

MD-224 is a first-in-class and highly potent small-molecule human murine double minute 2 (MDM2) degrader based on the proteolysistargeting chimera (PROTAC) concept. MD-224 induces rapid degradation of MDM2 at concentrations <1 nM in human leukemia cells, and achieves an IC50 value of 1.5 nM in inhibition of growth of RS4;11 cells. MD-224 has the potential to be a new class of anticancer agent[1].

  • CAS Number: 2136247-12-4
  • MF: C48H43Cl2FN6O6
  • MW: 889.80
  • Catalog: MDM-2/p53
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC BRD4 Degrader-21

PROTAC BRD4 Degrader-21 (Comp 74) is a PROTAC degrader of BRD4. PROTAC BRD4 Degrader-21 displays significant tumor growth inhibition in tumor -bearing xenograft models in mice and can be used for anticancer research[1].

  • CAS Number: 2503036-46-0
  • MF: C47H54Cl2N10O4S
  • MW: 925.97
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC BET Degrader-1

PROTAC BET Degrader-1 is a potent BET degrader based on PROTAC, decreasing BRD2, BRD3, and BRD4 protein levels at low concentration.

  • CAS Number: 2093386-22-0
  • MF: C44H45N11O9
  • MW: 871.9
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC CYP1B1 degrader-1

PROTAC CYP1B1 degrader-1 (Compound 6C), a α-naphthoflavone chimera derivative, is able to eliminate cytochrome P450 (CYP)1B1-mediated drug resistance via targeted CYP1B1 degradation, with IC50s of 95.1 and 9838.6 nM for CYP1B1 and CYP1A2, respectively. PROTAC CYP1B1 degrader-1 can be used for the research of CYP1B1-overexpressing prostate cancer[1].

  • CAS Number: 2411389-67-6
  • MF: C43H39N5O10
  • MW: 785.80
  • Catalog: Cytochrome P450
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

CD147 degrader 1

CD147 degrader 1 is a PROTAC targets CD147 with an DC50 value of 6.72 µM. CD147 degrader 1 inhibits cell proliferation, migration and invasion. CD147 degrader 1 decreases the expression of CD147, MMP9, and p-STAT3 protein. CD147 degrader 1 shows anti-cancer acyivity[1].

  • CAS Number: 2416740-37-7
  • MF: C38H42N4O11
  • MW: 730.76
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SJF620

SJF620 is a potent PROTAC BTK degrader with a DC50 of 7.9 nM[1].

  • CAS Number: 2376187-16-3
  • MF: C41H44N8O7
  • MW: 760.84
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC IRAK4 degrader-7

PROTAC IRAK4 degrader-7 (Compound I-417) is an orally active PROTAC IRAK4 degrader with antitumor activities[1].

  • CAS Number: 2432994-31-3
  • MF: C44H49F2N11O6
  • MW: 865.93
  • Catalog: IRAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC VEGFR-2 degrader-2

PROTAC VEGFR-2 degrader-2(PROTAC-4), a PROTAC VEGFR-2 degrader, exhibits little VEGFR-2 inhibition (IC50> 1 μM) and anti-proliferative activity against EA.hy926 cells (IC50> 100μM)[1].

  • CAS Number: 2353417-85-1
  • MF: C50H56FN9O6S
  • MW: 930.10
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

HDAC6 degrader-1

HDAC6 degrader-1 is a PROTAC that comprises a selective HDAC6 inhibitor Nexturastat A (Nex A) as the HDAC6 binder, a linker and a ligand for recruiting E3 ligase. HDAC6 degrader-1 induces significant degradation of HDAC6, exhibits excellent selectivity against other HDACs, and demonstrates efficient inhibition of cell proliferation[1].

  • CAS Number: 2439058-23-6
  • MF: C40H45N9O9
  • MW: 795.84
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC BTK Degrader-2

PROTAC BTK Degrader-2 is a potent BTK PROTAC degrader. PROTAC BTK Degrader-2 effectively reduces BTK protein levels[1].

  • CAS Number: 2250382-66-0
  • MF: C47H54F2N8O13
  • MW: 976.97
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

CMP 98

CMP98, a PROTAC, is unable to induce degradation of VHL. CMP98 can be used as a negative control compound for CM11[1].

  • CAS Number: 2244684-50-0
  • MF: C58H82N8O14S2
  • MW: 1179.45
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SHP2 protein degrader-1

SHP2 protein degrader-1 is a potent allosteric inhibitor of SHP2. SHP2 protein degrader-1 induces SHP2 degradation and cell apoptosis. SHP2 protein degrader-1 has the potential for researching SHP2 related diseases[1].

  • CAS Number: 2624181-69-5
  • MF: C42H51Cl2N11O8
  • MW: 908.83
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

A031

A031 is a highly effective PROTAC androgen receptor (AR) degrader with an IC50 value less than 0.25 μM for AR protein degradation. A031 has an inhibitory effect on tumor growth in zebrafish with human prostate cancer (VCaP)[1].

  • CAS Number: 2682255-44-1
  • MF: C50H61ClN10O7S
  • MW: 981.60
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JH-XI-10-02

JH-XI-10-02 is a potent and selective degrader of CDK8, with an IC50 of 159 nM, based on PROTAC. JH-XI-10-02 causes proteasomal degradation, does not affect CDK8 mRNA levels. JH-XI-10-02 shows no effect on CDK19[1].

  • CAS Number: 2209085-22-1
  • MF: C53H69N5O9
  • MW: 920.14
  • Catalog: CDK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ZXH-4-130 TFA

ZXH-4-130 TFA is a highly potent and selective degrader of CRBN. ZXH-4-130 is a CRBN-VHL compound (hetero-PROTAC)[1].

  • CAS Number: 2711006-67-4
  • MF: C48H59F3N6O11S
  • MW: 985.08
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ARD-61

ARD-61 is a highly potent, effective and specific PROTAC androgen receptor (AR) degrader. ARD-61 potently and effectively induces AR and progesterone receptors (PR) degradation in AR+ cancer cell lines. ARD-61 induces apoptosis and effectively induces tumor growth inhibition in the MDA-MB-453 xenograft model in mice[1].

  • CAS Number: 2316837-08-6
  • MF: C61H71ClN8O7S
  • MW: 1095.78
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

RIPK2-IN-2

RIPK2-IN-2 (example 25) is a RIP2 kinase PROTAC inhibitor. RIPK2-IN-2 can block RIP2-dependent proinflammatory signaling, regulated RIP2 kinase activity in auto inflammatory diseases[1].

  • CAS Number: 2143956-20-9
  • MF: C53H65FN14O7S2
  • MW: 1093.30
  • Catalog: RIP kinase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC IRAK4 degrader-2

PROTAC IRAK4 degrader-2 (Compound 9) is a PROTAC-based IRAK4 degrader that affords potent IRAK4 degradation with a DC50 in peripheral blood mononuclear cells (PBMCs) cells of 151 nM. PROTAC IRAK4 degrader-2 induce a reduction of IRAK4 protein levels with a DC50 of 36 nM in PBMC cells. PROTAC IRAK4 degrader-2 also leads to the inhibition of multiple cytokines in PBMCs[1].

  • CAS Number: 2374122-27-5
  • MF: C57H68FN11O8S
  • MW: 1086.28
  • Catalog: IRAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TL 13-112

TL13-112 is a novel Anaplastic Lymphoma Kinase (ALK)-PROTAC developed through conjugation of LDK378 and the cereblon ligand pomalidomide; also promotes the degradation of additional kinases including PTK2 (FAK), Aurora A, FER, and RPS6KA1 (RSK1).

  • CAS Number: 2229037-19-6
  • MF: C49H60ClN9O10S
  • MW: 1002.573
  • Catalog: PROTAC
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC IRAK3 degrade-1

PROTAC IRAK3 degrade-1 is a potent and selective degrader of IRAK3 (IC50 = 5 nM).

  • CAS Number: 2712600-00-3
  • MF: C47H63N11O6
  • MW: 878.07
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC ER Degrader-10

PROTAC ER Degrader-10 is a potent PROTAC ER degrader and can be used for cancer research. PROTAC ER Degrader-10 is extracted from patent WO2021133886, example 36.

  • CAS Number: 2504911-58-2
  • MF: C44H45N5O6
  • MW: 739.86
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC AR-V7 degrader-2

PROTAC AR-V7 degrader-2 is an AR-based PROTAC. PROTAC AR-V7 degrader-2 inhibits CaP cellular proliferation by degrading AR-V7 and AR-FL. PROTAC AR-V7 degrader-2 induces apoptosis[1].

  • CAS Number: 2488296-74-6
  • MF: C43H53F2N7O7S2
  • MW: 882.05
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TBK1 PROTAC 1

A novel potent, selective TBK1 PROTAC with DC50 of 12 nM, selectively degrades TBK1 with excellent selectivity against a related kinase IKKε; a chemical tool to assess TBK1 as a target in mutant K-Ras cancer cells.

  • CAS Number: 2052306-13-3
  • MF: C53H74BrN9O9S
  • MW: 1093.179
  • Catalog: IKK
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC EGFR degrader 6

PROTAC EGFR degrader 6 (Compound 2), a PROTAC EGFR degrader, potently degrades EGFRDel19 in HCC827 cells with the DC50 of 45.2 nM. PROTAC EGFR degrader 6 significantly induces the apoptosis of HCC827 cells and arrest the cells in G1 phase[1].

  • CAS Number: 2409793-28-6
  • MF: C49H57FN12O5
  • MW: 913.05
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC BRD9 Degrader-2

PROTAC BRD9 Degrader-2 is a BRD9 bifunctional degrader for treating cancer.

  • CAS Number: 2633631-78-2
  • MF: C39H48ClN5O7
  • MW: 734.28
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SNIPER(ER)-87

SNIPER(ER)-87 consists of an inhibitor of apoptosis protein (IAP) ligand LCL161 derivative that is conjugated to the estrogen receptor α (ERα) ligand 4-hydroxytamoxifen by a PEG linker, and efficiently degrades the ERα protein (IC50=0.097 μM). SNIPER(ER)-87 preferentially recruits XIAP to ERα in the cells, and XIAP is the primary E3 ubiquitin ligase responsible for the SNIPER(ER)-87-induced ERα degradation[1][2].

  • CAS Number: 2222354-91-6
  • MF: C59H73N5O10S
  • MW: 1044.30
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC CBP/P300 Degrader-1

PROTAC CBP/P300 Degrader-1 is a potent PROTAC CBP/P300 degrader. PROTAC CBP/P300 Degrader-1 potently inhibited cell viability of multiple cancer cell lines[1].

  • CAS Number: 2484739-48-0
  • MF: C46H53F2N11O6
  • MW: 893.98
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC GPX4 degrader-1

PROTAC GPX4 degrader-1 (DC-2) is a PROTAC-based GPX4 degrader, with a DC50 of 0.03 μM in HT1080 cells[1].

  • CAS Number: 2916433-81-1
  • MF: C50H57ClN10O10
  • MW: 993.50
  • Catalog: Ferroptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

FKBP12 PROTAC RC32

FKBP12 PROTAC RC32 (RC32) is a potent FKBP12 degrader based on PROTAC technology. FKBP12 PROTAC RC32 contains conjugation of Rapamycin (HY-10219) and a ligand for an E3 ubiquitin ligase (Pomalidomide; HY-10984)[1].

  • CAS Number: 2375555-66-9
  • MF: C75H107N7O20
  • MW: 1426.69
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC BRD9 Degrader-4

PROTAC BRD9 Degrader-4 is a BRD9 bifunctional degrader for treating cancer.

  • CAS Number: 2633632-34-3
  • MF: C42H49FN6O7
  • MW: 768.87
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A