BRD3 Degrader

ARV-771 is a potent BET PROTAC based on E3 ligase von Hippel-Lindau with K_ds of 34 nM, 4.7 nM, 8.3 nM, 7.6 nM, 9.6 nM, and 7.6 nM for BRD2(1), BRD2(2), BRD3(1), BRD3(2), BRD4(1), and BRD4(2), respectively.

PROTAC BRD4 Degrader-46 is a heterobifunctional BRD4 PROTAC degrader. PROTAC BRD4 Degrader-46 binds to both BRD4 and CRBN, thereby triggering ubiquitination and proteasomal degradation of BRD4. PROTAC BRD4 Degrader-46 downregulates the levels of downstream BRD2, BRD3 and MYC. PROTAC BRD4 Degrader-46 can be used in the research of cancers such as multiple myeloma.

RAJQ14 is a BRD4 PROTAC-like CAP-TAC (Proteasome Cap Targeting Chimeras) degrader. RAJQ14 binds to 19S proteasome cap subunits RPN1, RPN10, RPN13, and USP14 to recruit target proteins to the proteasome for ubiquitination-independent, proteasome-dependent degradation. RAJQ14 can be used for the research of cancer (Pink: BRD4 Ligand (HY-181496); Blue: Proteasome Ligand (HY-128978); Black: Linker).

SIM1 is a potent von Hippel-Lindau (VHL)-based trivalent PROTAC capable of degradation for all BET family members, with preference for BRD2 degradation (IC₅₀=1.1 nM; Kd=186 nM). SIM1 shows sustained anti-cancer activity.

TMX1 is a covalent, selective BRD4 molecular glue degrader. TMX1 binds to the JQ1-binding site of BRD4BD2, forms covalent bonds with Cys58 of DCAF16 and Cys87 of GAK in a BRD4BD2-dependent template-assisted manner, stabilizes the BRD4-TMX1-DCAF16 ternary complex, and promotes the ubiquitination of BRD4 via the CRL4_DCAF16 ubiquitin ligase complex. TMX1 induces selective degradation of BRD4, mild degradation of BRD2 and BRD3, as well as DCAF16-dependent cytotoxicity.

PROTAC BET Degrader-12 (Compound 8b) is a PROTAC degrader for bromodomain and extra-terminal domain (BET)-containing proteins, which degrades the BRD3 and BRD4 in a DCAF11-dependent manner. PROTAC BET Degrader-12 inhibits cell viability of KBM7 with a DC₅₀ of 305.2 nM

β-NF-JQ1 is a BRD2/3/4 PROTAC degrader. β-NF-JQ1 recruits the AhR E3 ligase complex to BRD2, BRD3 and BRD4, induces AhR-BRD interaction, and mediates AhR-dependent degradation through the proximity effect between the target protein and AhR. β-NF-JQ1 acts as an antiproliferative and cytotoxic agent that induces anticancer activity associated with BRD protein knockdown. β-NF-JQ1 can be used for research on breast cancer and neuroblastoma.

SNIPER (BRD)-1 is a BRD2/3/4 SNIPER degrader. SNIPER (BRD)-1 induces ubiquitin-proteasome-dependent degradation of the epigenetic regulatory proteins BRD2/3/4 as well as the IAP family E3 ligase itself with its IC₅₀ values for cIAP1, cIAP2 and XIAP of 6.8 nM, 17 nM and 49 nM, respectively. SNIPER (BRD)-1 can be used in the research of prostate cancer.

MS83 is a selective degrader of BRD4/BRD3 belonging to the PROTAC class. MS83 hijacks the KEAP1-dependent CUL3 ligase complex by binding to KEAP1 and forming a ternary complex with BRD4/BRD3. MS83 induces polyubiquitination and degradation of BRD4/BRD3 in a concentration-, time- and ubiquitin-proteasome system-dependent manner. MS83 inhibits c-MYC protein levels and suppresses the proliferation of triple-negative breast cancer cells.

PROTAC BRD3 degrader-1 (compound D072) is a potent and selective PROTAC BRD3 degrader. PROTAC BRD3 degrader-1 selectively degrades BRD3 in mice, leading to the downregulation of H3K18ac without affecting BRD2 or BRD4. PROTAC BRD3 degrader-1 reduces intraocular inflammation in the experimental autoimmune uveitis (EAU) mouse mode and inhibits proinflammatory microglia in both uveitis retina and LPS (HY-D1056) treated mouse microglia cell line BV2. PROTAC BRD3 degrader-1 can be used for uveitis research.

JQ-1 (carboxylic acid)-amine-PEG8-cyanogen is a Target Protein Ligand-Linker Conjugate that incorporates a ligand for BRD4 (HY-78695) and a PROTAC linker, which recruits E3 ligases. JQ-1 (carboxylic acid)-amine-PEG8-cyanogen can be used for the synthesis of PROTAC BET Degrader-14 (HY-179588 ).

SJ44236 is a BET PROTAC degrader with activity against BRD2, BRD3 and BRD4 (DC₅₀ = 127 pM). SJ44236 induces ubiquitination and proteasomal degradation by forming a ternary complex with BET proteins and CRBN-DDB1. SJ44236 downregulates c-Myc, upregulates p53 and reduces cancer cell viability. SJ44236 can be used for the research of leukemia and medulloblastoma.

PROTAC BET Degrader-17 is a potent BET protein PROTAC degrader. By recruiting the VHL E3 ligase, PROTAC BET Degrader-17 specifically degrades BRD2, BRD3 (DC₅₀=0.09 nM) and BRD4 (IC₅₀=4.3 nM). PROTAC BET Degrader-17 exhibits strong anti-tumor activity in acute myeloid leukemia (AML) studies; it not only inhibits cancer cell proliferation, induces cell cycle arrest and apoptosis, but also effectively suppresses tumor growth in xenograft mouse models. PROTAC BET Degrader-17 can be used to explore targeted therapies for acute myeloid leukemia.

PROTAC BET Degrader-16 (Compound A10) is a BET PROTAC degrader with a DC₅₀ of 0.31 nM against BRD4, and it preferentially targets BRD4 over other BET family members. PROTAC BET Degrader-16 degrades BRD2, BRD3 and BRD4 via the ubiquitin-proteasome system, a process that requires target binding and recruitment of the CRBN E3 ligase. PROTAC BET Degrader-16 induces cell cycle arrest and promotes apoptosis. PROTAC BET Degrader-16 exerts anti-tumor activity against acute myeloid leukemia.

PROTAC BET Degrader-15 is a BET PROTAC degrader with DC₅₀ values of <0.10 nM, <0.01 nM, and <0.01 nM against BRD2, BRD3, and BRD4, respectively. PROTAC BET Degrader-15 induces significant G2/M phase cell cycle arrest and triggers apoptosis. PROTAC BET Degrader-15 causes marked downregulation of c-Myc, accompanied by upregulation of the cell cycle inhibitory protein p21, downregulation of CDK6, and an increase in the apoptosis marker cleaved PARP. PROTAC BET Degrader-15 is applicable to the research of hematologic malignancies and lung cancer.

GXF-111 is a BRD3 and BRD4-L PROTAC degrader. Its BD1 and BD2 Ki values against human BRD3 are 11.97 nM and 2.45 nM, respectively. The degradation activity of GXF-111 depends on its binding to BET proteins and Cereblon, as well as the involvement of a functional proteasome. The degradation selectivity of GXF-111 is mainly determined by differences in degradation kinetics and cell types. GXF-111 induces G₁ phase cell cycle arrest, downregulates c-Myc expression, upregulates p21 expression, and exhibits antiproliferative activity against a variety of cancer cell lines. GXF-111 can serve as a research tool for cancer-related studies.

BT-PROTAC is a bioorthogonally activatable BRD4/BRD3 PROTAC degrader prodrug. BT-PROTAC is inactive when present alone, but upon activation by tetrazine compounds, it promotes the degradation of BRD4 and BRD3 via the ubiquitin-proteasome system, inhibits c-Myc expression, activates caspase-3, and induces apoptosis in breast cancer cells. BT-PROTAC can be used for breast cancer research.

Pomalidomide-C5-Dovitinib is a heterobifunctional PROTAC that recruits KEAP1 E3 ligase to degrade BRD4 and BRD3, but not BRD2.

PROTAC BRD4 Degrader-22 is a BRD4 PROTAC degrader with a DC₅₀ of 0.59 nM. At high concentrations, PROTAC BRD4 Degrader-22 induces partial degradation of BRD3 and BRD2, but exhibits selectivity for IKZF3. PROTAC BRD4 Degrader-22 can be used in leukemia-related research.

PROTAC BET Degrader-14 is a highly efficient PROTAC targeting BET (bromodomain and extra-terminal domain). PROTAC BET Degrader-14 can degrade all BET (BRD2, BRD3, BRD4) family proteins. PROTAC BET Degrader-14 potently degrades BET proteins in U2OS osteosarcoma cell lines (BRD4 DC₅₀ = 130 nM) and KYSE180 esophageal squamous cell carcinoma cell lines (DC₅₀ = 40 nM). PROTAC BET Degrader-14’s dependence on the ubiquitin-proteasome system. PROTAC BET Degrader-14 decreases levels of BET-regulated gene products c-Myc, RUNX2, and KRT14. PROTAC BET Degrader-14 can be used for the study of osteosarcoma.