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

ARD-2051

ARD-2051 is a potent and orally active androgen receptor (AR) proteolysis-targeting chimera degrader. ARD-2051 achieves DC50 values of 0.6 nM for AR protein degradation in both the LNCaP and VCaP prostate cancer cell lines. ARD-2051 can be used for the research of prostate cancer[1].

  • CAS Number: 2632305-17-8
  • MF: C43H45ClN8O5
  • MW: 789.32
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC EED degrader-2

PROTAC EED degrader-2 is a PROTAC targeting EED with a pKD of 9.27. PROTAC EED degrader-2 is a polycomb repressive complex 2 (PRC2) inhibitor (pIC50=8.11) targeting the EED subunit[1].

  • CAS Number: 2639882-69-0
  • MF: C50H58FN11O6S
  • MW: 960.13
  • Catalog: Histone Methyltransferase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC MDM2 Degrader-3

PROTAC MDM2 Degrader-3 is a MDM2 degrader based on PROTAC technology. PROTAC MDM2 Degrader-3 composes of a potent MDM2 inhibitor, linker, and the MDM2 ligand for E3 ubiquitin ligase[1].

  • CAS Number: 2249750-23-8
  • MF: C72H78Cl4N8O15
  • MW: 1437.25
  • Catalog: MDM-2/p53
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ARV-825

ARV-825 is a BRD4 Inhibitor based on PROTAC technology. ARV-825 binds to BD1 and BD2 of BRD4 with Kds of 90 and 28 nM, respectively.

  • CAS Number: 1818885-28-7
  • MF: C46H47ClN8O9S
  • MW: 923.432
  • Catalog: Epigenetic Reader Domain
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC IRAK4 ligand-3

PROTAC IRAK4 ligand-3 is a ligand of PROTAC IRAK4 degrader-7 (HY-145483). PROTAC IRAK4 ligand-3 can be used for the research of cancer[1].

  • CAS Number: 2434848-46-9
  • MF: C23H25F2N7O3
  • MW: 485.49
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SJFδ

SJFδ is a 10-atom linker PROTAC. SJFδ degrades p38α with a DC50 of 46.17 nM, but does not degrade p38α, p38β, or p38γ[1].

  • CAS Number: 2254609-23-7
  • MF: C62H63F2N7O12S
  • MW: 1168.27
  • Catalog: p38 MAPK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SJ988497

SJ988497 is a PROTAC JAK2 degrader. SJ988497 potently inhibits CRLF2-rearranged (CRLF2r) cell proliferation and degrades the CRBN neosubstrate GSPT1. SJ988497 consists of a Ruxolitinib (HY-50856) derivative, linker, and CRBN ligand Pomalidomide. SJ988497 can be used in the research of acute lymphoblastic leukemia (ALL)[1].

  • CAS Number: 2595365-41-4
  • MF: C36H36N10O5
  • MW: 688.74
  • Catalog: JAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PZ703b

PZ703b is a novel BCL-XL PROTAC degrader with enhanced BCL-2 inhibition.

  • CAS Number: 2471970-56-4
  • MF: C80H102ClF3N10O11S4
  • MW: 1600.43
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SIAIS164018

SIAIS164018 is a PROTAC-based ALK and EGFR degrader, which is designed from Brigatinib, with IC50 value of 2.5 nM and 6.6 nM for ALK and ALK G1202R, respectively. SIAIS164018 strongly inhibits cancer cells migration and invasion, causes G1 cell cycle arrest and induces apoptosis. SIAIS164018 exhibits better property than Brigatinib[1].

  • CAS Number: 2353492-68-7
  • MF: C43H48ClN10O7P
  • MW: 883.33
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

DB1113

DB1113 (Example 24) is a bifunctional compound targeted protein degradation of kinases. DB1113 degrades ABL1, ABL2, BLK, CDK11B, CDK4, CSK, EPHA3, FER, GAK, LIMK1, MAP3K20, MAP4K1, MAP4K2, MAP4K3, MAP4K5, MAPK14, MAPK7, MAPK8, MAPK9, MAPKAPK2, MAPKAPK3, NLK, PDIK1L, PTK2B, RIPK1, RPS6KA1, RPS6KA3, SIK2, SIK3, STK35, TNK2, and ULK1. DB1113 can be used for research of disease or disorder mediated by aberrant kinase activity[1].

  • CAS Number: 2769753-53-7
  • MF: C59H68F3N13O6S
  • MW: 1144.31
  • Catalog: Ferroptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

cis-MZ 1

cis-MZ 1 is a negative control of MZ 1 (HY-107425). cis-MZ 1 is a PROTAC targeting to BRD4[1].

  • CAS Number: 1797406-72-4
  • MF: C49H60ClN9O8S2
  • MW: 1002.64
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

KTX-951

KTX-951 is an IRAK4 degrader (DC50=18 nM). KTX-951 (10 mg/kg) shows the oral bioavailability (F%) of 22% in a rat model. KTX-951 has good anticancer potential[1].

  • CAS Number: 2573298-36-7
  • MF: C46H52F2N8O6
  • MW: 850.95
  • Catalog: IRAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MS5033

MS5033 is a potent PROTAC-based AKT (protein kinase B) degrader, with a DC50 of 430 nM in PC3 cells[1].

  • CAS Number: 2376137-29-8
  • MF: C51H66ClN11O11
  • MW: 1044.59
  • Catalog: Akt
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

CRBN-6-5-5-VHL

CRBN-6-5-5-VHL is a potent and selective cereblon (CRBN) degrader with a DC50 value of 1.5 nM. CRBN-6-5-5-VHL has almost no effect on the degradation of the neo-substrates IKZF1 and IKZF3[1].

  • CAS Number: 2362575-45-7
  • MF: C51H69N7O10S
  • MW: 972.20
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SIAIS178

SIAIS178 is a potent and selective BCR-ABL degrader based on PROTAC technology with an IC50 of 24 nM. SIAIS178 causes effective degradation of BCR-ABL protein by recruiting Von Hippel-Lindau (VHL) E3 ubiquitin ligase. SIAIS178 has anticancer activity[1].

  • CAS Number: 2376047-73-1
  • MF: C50H62ClN11O6S2
  • MW: 1012.68
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ERK-CLIPTAC

ERK-CLIPTAC is a PROTAC molecule that triggers the degradation of ERK[1].

  • CAS Number: 2087490-46-6
  • MF: C60H61ClN12O9
  • MW: 1129.65
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC EED degrader-1

PROTAC EED degrader-1 is a PROTAC targeting EED with a pKD of 9.02. PROTAC EED degrader-1 is a polycomb repressive complex 2 (PRC2) inhibitor (pIC50=8.17) targeting the EED subunit[1].

  • CAS Number: 2639882-72-5
  • MF: C55H60FN11O8S
  • MW: 1054.20
  • Catalog: Histone Methyltransferase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

CC-885-CH2-PEG1-NH-CH3

CC-885-CH2-PEG1-NH-CH3 is a neoDegrader that can be used in the synthesis of Antibody neoDegrader Conjugate (AnDC)[1][2].

  • CAS Number: 2722698-03-3
  • MF: C26H30ClN5O5
  • MW: 528.00
  • Catalog: ADC Cytotoxin
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

HDAC6 degrader-3

HDAC6 degrader-3 is a potent and selective HDAC6 degrader via ternary complex formation and the ubiquitin-proteasome pathway with a DC50 value of 19.4 nM. HDAC6 degrader-3 has IC50s of 4.54 nM and 0.647 μM for HDAC6 and HDAC1, respectively. HDAC6 degrader-3 causes strong hyperacetylation of α-tubulin[1].

  • CAS Number: 2785404-83-1
  • MF: C41H41F4N7O11
  • MW: 883.80
  • Catalog: HDAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Dovitinib-RIBOTAC TFA

Dovitinib RIBOTAC TFA is a targeted RNA degrader that cleaves pre-miR-21 with enhanced potency and selectivity.

  • CAS Number: 2759351-69-2
  • MF: C53H57F4N9O12S
  • MW: 1120.13
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC RIPK degrader-6

PROTAC RIPK degrader-6 (example 1) is a PROTAC targeting RIP Kinase degradation wherein the RIP2 kinase inhibitor is linked via a linker to a cereblon binder[1].

  • CAS Number: 2089205-64-9
  • MF: C43H48N6O11S2
  • MW: 889.00
  • Catalog: RIP kinase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

dTRIM24

dTRIM24 is a selective bifunctional degrader of TRIM24 based on PROTAC.

  • CAS Number: 2170695-14-2
  • MF: C55H68N8O13S2
  • MW: 1113.3
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC Her3 Degrader-8

PROTAC Her3 Degrader-8 (Compound PP2) is a PROTAC that can degrade Her3 protein in vitro and cell experiments, and can be used to study diseases regulated by HER family proteins[1].

  • CAS Number: 2103331-95-7
  • MF: C49H55N11O6S
  • MW: 926.10
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

dBET6

dBET6 is a highly potent, selective and cell-permeable degrader of BET based on PROTAC, with an IC50 of 14 nM, and has antitumor activity.

  • CAS Number: 1950634-92-0
  • MF: C42H45ClN8O7S
  • MW: 841.37
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TD-165

TD-165 is a cereblon (CRBN) degrader. TD-165comprises a cereblon (CRBN) ligand binding group, a linker and an von Hippel-Landau (VHL) binding group[1].

  • CAS Number: 2305936-56-3
  • MF: C46H59N7O8S
  • MW: 870.07
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SHP2 protein degrader-2

SHP2 protein degrader-2 (SHP2-D26) is a SHP2 protein PROTAC degrader. SHP2 protein degrader-2 reduces expression level of SHP2 in various cancer cells[1].

  • CAS Number: 2740582-16-3
  • MF: C56H79ClN12O6S2
  • MW: 1115.89
  • Catalog: Phosphatase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC BRD9 Degrader-3

PROTAC BRD9 Degrader-3 is a BRD9 bifunctional degrader for treating cancer.

  • CAS Number: 2633632-05-8
  • MF: C41H47ClN6O6
  • MW: 755.30
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC eEF2K degrader-1

PROTAC eEF2K degrader-1 (Compound 11l) is an eEF2K-Targeting PROTAC small molecule that induces apoptosis in MDA-MB-231 cells. PROTAC eEF2K degrader-1 mediates eEF2K degradation[1].

  • CAS Number: 2458170-54-0
  • MF: C31H33N9O11
  • MW: 707.65
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

DT2216

DT2216 is a selective B-cell lymphoma extra large (BCL-XL) proteolysis-targeting chimera (PROTAC). DT2216 targets BCL-XL to the Von Hippel-Lindau (VHL) E3 ligase for degradation. DT2216 inhibits various BCL-XL-dependent leukemia and cancer cells but considerably less toxic to platelets[1].

  • CAS Number: 2365172-42-3
  • MF: C77H96ClF3N10O10S4
  • MW: 1542.36
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC BRD4 Degrader-20

PROTAC BRD4 Degrader-20 (compound 195) is an bifunctional compound and an degrader of BRD4[1].

  • CAS Number: 2086300-61-8
  • MF: C55H58ClN9O7S2
  • MW: 1056.69
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A