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 >
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Antibody-drug Conjugate >
ADC Cytotoxin ADC Linker Drug-Linker Conjugates for ADC PROTAC-linker Conjugate for PAC
Apoptosis >
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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 >
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 >
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TGF-beta/Smad >
TGF-beta/Smad PKC ROCK TGF-β Receptor
Vitamin D Related >
VD/VDR
Others >
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XZ739

XZ739, a CRBN-dependent PROTAC BCL-XL degrader with a DC50 value of 2.5 nM in MOLT-4 cells after 16 h treatment. XZ739 also induces cell death through caspase-mediated apoptosis[1].

  • CAS Number: 2365172-19-4
  • MF: C65H76ClF3N8O12S3
  • MW: 1349.99
  • Catalog: Apoptosis
  • 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

dBRD4-BD1

dBRD4-BD1 is a selective and durable BRD4 degrader with an DC50 value of 280 nM (Dmax=77%). dBRD4-BD1 upregulates BRD2/3 protein level and shows low cytotoxicity than iBRD4-BD1[1].

  • CAS Number: 2839318-19-1
  • MF: C50H53F3N8O9
  • MW: 967.00
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • 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

CM 11

Homo-PROTAC pVHL30 degrader 1 is a potent pVHL30 degrader based on PROTAC[1].

  • CAS Number: 2244684-49-7
  • MF: C58H82N8O14S2
  • MW: 1179.45
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

DA-PROTAC

DA-PROTAC is a potent PROTAC degrader of copper ion-transport proteins Atox1 and CCS. DA-PROTAC can bind both Atox1 and CCS proteins, and the complex can be bound to E3 ligase, leading to increased levels of ubiquitination of Atox1 and CCS and degradation of Atox1 and CCS proteins via the proteasome pathway. DA-PROTAC can be used for triple negative breast cancer research[1].

  • CAS Number: 2488660-12-2
  • MF: C46H50BrF2N7O8S2
  • MW: 1010.96
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Bis-PEG6-acid

PEG6-(CH2CO2H)2 is a symmetric PEG PROTAC linker, for the synthesis of Homo-PROTACs which is bivalent small-molecule dimerizers of the VHL E3 ubiquitin ligase to induce self-degradation[1].

  • CAS Number: 77855-76-6
  • MF: C14H26O10
  • MW: 354.35
  • Catalog: PROTAC
  • 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

Homo-PROTAC cereblon degrader 1

Homo-PROTAC cereblon degrader 1 (compound 15a) is a highly potent and efficient cereblon (CRBN) degrader with only minimal effects on IKZF1 and IKZF3[1].

  • CAS Number: 2244520-98-5
  • MF: C32H32N6O10
  • MW: 660.63
  • Catalog: E1/E2/E3 Enzyme
  • 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

RIP2 Kinase Inhibitor 4

RIP2 Kinase Inhibitor 4 is a potent and selective RIPK2 PROTAC. RIP2 Kinase Inhibitor 4 effectively degrades RIPK2 (pIC50 of 8) and inhibits the release of related TNF-α[1].

  • CAS Number: 2126803-41-4
  • MF: C50H66F2N14O7S
  • MW: 1045.21
  • Catalog: RIP kinase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC IRAK4 degrader-5

PROTAC IRAK4 degrader-5 is a PROTAC-based IRAK4 degrader extracted from patent US20190192668A1, compound I-171[1].

  • CAS Number: 2360530-61-4
  • MF: C41H40F3N11O9
  • MW: 887.82
  • Catalog: IRAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Gefitinib-based PROTAC 3

Gefitinib-based PROTAC 3, conjugating an EGFR binding element to a VHL ligand via a linker, induces EGFR degradation with DC50s of 11.7 nM and 22.3 nM in HCC827(exon 19 del) and H3255 (L858R mutantion) cells, respectively[1].

  • CAS Number: 2230821-27-7
  • MF: C47H57ClFN7O8S
  • MW: 934.51
  • Catalog: EGFR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Compound 23

PROTAC BRAF-V600E degrader-1 is a potent PROTAC BRAF-V600E degrader with Kd value of 2.4 nM and 2 nM for BRAF and BRAF-V600E, respectively. PROTAC BRAF-V600E degrader-1 degrades BRAF-V600E via the ubiquitin-proteasome system (UPS). PROTAC BRAF-V600E degrader-1 can inhibit melanoma cell growth[1].

  • CAS Number: 2417296-84-3
  • MF: C48H54F2N10O10S
  • MW: 1001.07
  • Catalog: Raf
  • 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

Azido-PEG2-VHL

Azido-PEG2-VHL is a multikinase degrader which can be used in the synthesis of PROTACs[1].

  • CAS Number: 2597167-22-9
  • MF: C29H41N7O6S
  • MW: 615.74
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MS4078

MS4078 is an anaplastic lymphoma kinase (ALK) PROTAC (degrader) with a Kd of 19 nM for binding affinity to ALK[1].

  • CAS Number: 2229036-62-6
  • MF: C45H52ClN9O8S
  • MW: 914.47
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

AT6

AT6 is a PROTAC AT1 analogue, which is a highly selective bromodomain (Brd4) degrader.

  • CAS Number: 2098836-50-9
  • MF: C48H58ClN9O7S3
  • MW: 1004.68
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC PTPN2 degrader-2 TFA

PROTAC PTPN2 degrader-2 (example 187B) TFA is a potent PTPN2 degrader with potential for studying cancer or metabolic diseases[1].

  • CAS Number: 2912307-39-0
  • MF: C51H50ClF3N6O13S2
  • MW: 1111.55
  • Catalog: Phosphatase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ARCC 4

ARCC-4 is a low-nanomolar androgen receptor (AR) degrader based on PROTAC, with a DC50 of 5 nM. ARCC-4 is an enzalutamide-based von Hippel-Lindau (VHL)-recruiting AR PROTAC and outperforms enzalutamide. ARCC-4 effectively degrades clinically relevant AR mutants associated with antiandrogen therapy[1].

  • CAS Number: 1973403-00-7
  • MF: C53H56F3N7O7S2
  • MW: 1024.18
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Pomalidomide-C5-Dovitinib

Pomalidomide-C5-Dovitinib (compound 2) is a PROTAC containing Pomalidomide, Dovitinib and connected with CRBN. Pomalidomide-C5-Dovitinib shows enhanced antiproliferative effects against FLT3-ITD+ AML cells. Pomalidomide-C5-Dovitinib induces the degradation of the FLT3-ITD and KIT proteins in a ubiquitin-proteasome-dependent manner and completely blocks their downstream signaling pathway. Pomalidomide-C5-Dovitinib has the potential for the research of FLT3-ITD+ acute myeloid leukemia[1].

  • CAS Number: 2732969-67-2
  • MF: C39H38FN9O6
  • MW: 747.77
  • Catalog: PROTAC
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MT-802

MT-802 is a potent BTK degrader based on PROTAC technology, with a DC50 of 1 nM. MT-802 has potential to treat C481S mutant chronic lymphocytic leukemia (CLL)[1].

  • CAS Number: 2231744-29-7
  • MF: C41H41N9O8
  • MW: 787.82
  • Catalog: PROTAC
  • 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

PROTAC PTPN2 degrader-2

PROTAC PTPN2 degrader-2 (example 187B) is a potent PTPN2 degrader with potential for studying cancer or metabolic diseases[1].

  • CAS Number: 2912307-38-9
  • MF: C49H49ClN6O11S2
  • MW: 997.53
  • Catalog: Phosphatase
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC IRAK4 degrader-6

PROTAC IRAK4 degrader-6 is a PROTAC interleukin-1 receptor-associated kinase 4 (IRAK4) degrader extracted from patent US20190192668A1, compound I-172[1].

  • CAS Number: 2360530-72-7
  • MF: C42H41F3N12O8
  • MW: 898.85
  • Catalog: IRAK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PROTAC BRD4 Degrader-2

PROTAC BRD4 Degrader-2 is an efficacious PROTAC BRD4 degrader with an IC50 of 14.2 nM against BRD4 BD1[1].

  • CAS Number: 2185795-53-1
  • MF: C40H39N9O7
  • MW: 757.79
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

KTX-582

KTX-582 is a potent IRAK4 degrader with DC50 values of 4 nM and 5 nM for IRAK4 and Ikaros, respectively. KTX-582 can induce apoptosis in MYD88MT DLBCL, and is efficient to induce in vivo tumor regressions in lymphoma model[1][2][3].

  • CAS Number: 2573298-13-0
  • MF: C45H51F3N8O7
  • MW: 872.93
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

HJB97

HJB97 is a high-affinity BET inhibitor with Kis of 0.9±0.2 nM (BRD2 BD1), 0.27±0.09 nM (BRD2 BD2), 0.18±0.01 nM (BRD3 BD1), 0.21±0.03 nM (BRD3 BD2), 0.5±0.2 nM (BRD4 BD1), 1.0±0.1 nM (BRD4 BD2), respectively. HJB97 is a PROTAC BET degrader. Antitumor activity[1].

  • CAS Number: 2093391-24-1
  • MF: C26H28N8O3
  • MW: 500.55
  • Catalog: Epigenetic Reader Domain
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

THAL SNS 032

THAL-SNS-032 is a selective CDK9 degrader PROTAC consisting of a CDK-binding SNS-032 ligand linked to a thalidomide derivative that binds the E3 ubiquitin ligase Cereblon (CRBN)[1].

  • CAS Number: 2139287-33-3
  • MF: C40H52N8O10S2
  • MW: 869.02
  • Catalog: CDK
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A