2. Signaling Pathways
  3. Epigenetics
  4. Epigenetic Reader Domain

Epigenetic Reader Domain

Epigenetic Reader Domain

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Epigenetic regulators of gene expression and chromatin state include so-called writers, erasers, and readers of chromatin modifications.Well-characterized examples of reader domains include bromodomains typically binding acetyllysine and chromatin organization modifier (chromo), malignant brain tumor (MBT), plant homeodomain (PHD), and Tudor domains generally associating with methyllysine. Research on epigenetic readers has been tremendously influenced by the discovery of selective inhibitors targeting the bromodomain and extraterminal motif (BET) family of acetyl-lysine readers. The human genome encodes 46 proteins containing 61 bromodomains clustered into eight families. Distinct experimental approaches are used to identify the first BET inhibitors, GSK 525762A and (+)-JQ-1.

The Polycomb group (PcG) protein, enhancer of zeste homologue 2 (EZH2), has an essential role in promoting histone H3 lysine 27 trimethylation (H3K27me3) and epigenetic gene silencing. This function of EZH2 is important for cell proliferation and inhibition of cell differentiation, and is implicated in cancer progression. Cyclin-dependent kinases regulate epigenetic gene silencing through phosphorylation of EZH2. In many types of cancers including lymphomas and leukemia, EZH2 is postulated to exert its oncogenic effects via aberrant histone and DNA methylation, causing silencing of tumor suppressor genes.

p300/CBP is not only a transcriptional adaptor but also a histone acetyltransferase.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-176535
    KB-0118
    		Inhibitor
    KB-0118 (BBC0115) is an orally active BET bromodomain inhibitor. KB-0118 selective binds to BRD2 and BRD4 over BRD3, with Kd values of 36.7 μM for BRD2 BD1 and 47.4 μM for BRD4 BD1. KB-0118 inhibits pro-inflammatory cytokines, including TNF, IL-1β, and IL-23a and selectively suppresses Th17 cell differentiation. KB-0118 modulates Th17-driven inflammation occurs through epigenetic suppression of BRD4, confirmed by downregulation of STAT3 and BRD4 target genes. KB-0118 has immunomodulatory effects in inflammatory bowel disease (IBD) model.
    KB-0118
  • HY-146741
    SDR-04
    		Inhibitor
    SDR-04 is a BET inhibitor and exhibits strong BRD4-BD1 affinity and inhibition activity. SDR-04 potently suppresses MV4;11 cancer cell line proliferation.
    SDR-04
  • HY-128761
    CBP/p300-IN-2
    		Inhibitor
    CBP/EP300-IN-2 is an inhibitor of CBP/EP300 with IC50 values of 1.07 nM and 5.96 nM for CBP/HTRF and Myc, respectively. CBP/EP300-IN-2, example 25, is extracted from patent WO2017205538A1.
    CBP/p300-IN-2
  • HY-144338
    PARP1/BRD4-IN-1
    		Inhibitor
    PARP1/BRD4-IN-1 is a potent and high selective PARP1/BRD4 inhibitor (IC50s of 49 and 202 nM in PARP1 and BRD4, respectively). PARP1/BRD4-IN-1 represses the expression and activity of PARP1 and BRD4 to synergistically inhibit the malignant growth of pancreatic cancer cells.
    PARP1/BRD4-IN-1
  • HY-178488
    BRM/BRG1 ATP-IN-7
    		Inhibitor
    BRM/BRG1 ATP-IN-7 (Compound Cpd69) is a selective dual BRM (SMARCA2) and BRG1 (SMARCA4) inhibitor with IC50 values of 12 nM and 8 nM, respectively. BRM/BRG1 ATP-IN-7 is promising for research of BRM/BRG1-dependent cancers (e.g., non-small cell lung cancer, Ewing sarcoma) and virus-associated diseases (e.g., HPV infection).
    BRM/BRG1 ATP-IN-7
  • HY-150683
    NC-III-49-1
    		Inhibitor
    NC-III-49-1 is a potent bivalent bromodomain and extraterminal domain (BET) inhibitor. NC-III-49-1 shows binding potential for BRD4-1, BRD4-2, BRD4-T, BRDT-1, BRDT-2, BRDT-T with Kd values of 0.095, 0.32, 0.29, 0.089, 5.5, 0.058 nM, respectively. NC-III-49-1 shows antiproliferative activity. NC-III-49-1 decreases the expression of c-Myc.
    NC-III-49-1
  • HY-173315
    pan-BET/BD2-IN-1
    		Inhibitor
    pan-BET/BD2-IN-1 (compound 6b) is a selective extra-terminal (BET) protein inhibitor (BRDT-1 Ki = 1.05 μM and BRD4-1 Ki = 0.68 μM). pan-BET/BD2-IN-1 inhibits MM.1S cancer cell growth with an IC50 of 2.6 μM.
    pan-BET/BD2-IN-1
  • HY-151530
    PBRM1-BD2-IN-3
    		Inhibitor
    PBRM1-BD2-IN-3 (compound 12) is a potent PBRM1-BD2 inhibitor with an IC50 value of 1.1 μM. PBRM1-BD2 Inhibitor can be used to research anticancer.
    PBRM1-BD2-IN-3
  • HY-177144
    CDD-1128
    		Inhibitor
    CDD-1128 (Compound 11) is a potent inhibitor of BRDT-BD2. CDD-1128 has an IC50 of 521 nM against BRDT-BD2. CDD-1128 can be studied in research on nonhormonal contraceptive agent.
    CDD-1128
  • HY-111979
    ZEN-3411
    		Inhibitor
    ZEN-3411 is a BET inhibitor with IC50s of 0.05, 0.05 and 0.06 μM for BRD4(BD1), BRD4(BD2) and BRD4(BD1BD2), respectively. ZEN-3411 can be used to form PROTACs to induce degradation of BRD4.
    ZEN-3411
  • HY-50698G
    BI 2536 (GMP)
    		Inhibitor
    BI 2536 (GMP) is BI 2536 (HY-50698) produced by using GMP guidelines. GMP small molecules works appropriately as an auxiliary reagent for cell therapy manufacture. BI 2536 is a dual PLK1 and BRD4 inhibitor with IC50s of 0.83 and 25 nM, respectively. BI-2536 suppresses IFNB (encoding IFN-β) gene transcription.
    BI 2536 (GMP)
  • HY-168634
    SJ46421
    		Inhibitor
    SJ46421 is a (+)-JQ-1 (HY-13030) based KLHDC2-BRD3 PROTAC protein degrader. SJ46421 induces cooperative ternary complexes with KLHDC2 and BRD3BD2, with an IC50 of 7.8 nM. SJ46421 selectively inhibits KLHDC2 substrate ubiquitylation. SJ46421 promotes polyubiquitylation of the BD2 domain from BRD2, BRD3, or BRD4. SJ46421 possesses poor cell permeability. (Pink: ligand for target protein (HY-13030); Black: linker (HY-20797); Blue: E3 ligase ligand (HY-168536)).
    SJ46421
  • HY-P10445
    TAT-PiET
    		Inhibitor
    TAT-PiET is a cell-penetrating peptide targeting the extra-terminal (ET) domain of BRD4. TAT-PiET can reduce BRD4 and JMJD6 levels and inhibit cell proliferation. TAT-PiET also resists the endocrine resistance of ERα-positive breast cancer cells. TAT-PiET can be used for the research of cancer, such as breast cancer.
    TAT-PiET
  • HY-143235
    BRD4 Inhibitor-15
    		Inhibitor
    BRD4 Inhibitor-15 (compound 13) is a potent BRD4 inhibitor, with an IC50 of 18 nM. BRD4 Inhibitor-15 induces apoptosis of 22RV1 cells by regulating Bcl-2/Bax proteins and activating caspase-3 signaling pathway. BRD4 Inhibitor-15 down-regulates the c-Myc level in 22RV1 cells. BRD4 Inhibitor-15 can be used for prostate cancer research.
    BRD4 Inhibitor-15
  • HY-149863
    DDO-8926
    		Inhibitor
    DDO-8926 is a potent and selective BET inhibitor that can significantly reduce mechanical hypersensitivity by inhibiting the expression of pro-inflammatory cytokines and reducing excitability for neuropathic pain research.
    DDO-8926
  • HY-117365
    MI-1481
    		Inhibitor
    MI-1481 is a highly potent inhibitor of the Menin-MLL1 interaction with IC50 of 3.6 nM. MI-1481 markedly reduces cell growth of murine bone marrow cells transformed and inhibits leukemia progression.
    MI-1481
  • HY-149421
    BRD7-IN-3
    		Inhibitor
    BRD7-IN-3 (compound 1-78) is a dual inhibitor of bromodomain-containing proteins BRD7/BRD9 with IC50s of 1.6 μM and 2.7 μM respectively.
    BRD7-IN-3
  • HY-151533
    PBRM1-BD2-IN-6
    		Inhibitor
    PBRM1-BD2-IN-6 is a potent PBRM1 bromodomain inhibitor with an IC50 value of 0.22 μM. PBRM1-BD2-IN-6 shows antiproliferation activity. PBRM1-BD2-IN-6 has the potential for the research of PBRM1-dependent cancer.
    PBRM1-BD2-IN-6
  • HY-151528
    PBRM1-BD2-IN-1
    		Inhibitor
    PBRM1-BD2-IN-1 is a selective and cell-active polybromo-1 (PBRM1) bromodomain inhibitor. PBRM1-BD2-IN-1 has binding affinity and inhibitory activity for PBRM1-BD2 with Kd and IC50 values of 0.7 μM and 0.2 μM, respectively. PBRM1-BD2-IN-1 can be used for the research of cancer.
    PBRM1-BD2-IN-1
  • HY-115541
    BRD4-IN-41
    		Inhibitor
    BRD4-IN-41 is a BRD4 inhibitor with an IC50 of 34 nM. BRD4-IN-41 also inhibits JAK2, FLT3, RET, ROS1, NTRK3, PDGFRb, and FGFR1 kinases with IC50 values ranging from 0.9 nM to 43 nM. BRD4-IN-41 inhibits acetyl-lysine binding site of BRD4, downregulates c-MYC, reduces phosphorylated STAT3 levels, induces G1 cell cycle arrest and apoptosis, thereby inhibiting cancer cells growth. BRD4-IN-41 can be used for the research of cancer, such as multiple myeloma and acute myeloid leukemia.
    BRD4-IN-41
Cat. No. Product Name / Synonyms Application Reactivity