2. Signaling Pathways
  3. PROTAC
  4. Hsp-targeting Chimeras

Hsp-targeting Chimeras

HspTACs

Hsp-targeting Chimeras (HspTACs) represent a small-molecule targeted protein degradation platform based on heat shock proteins (Hsp). By conjugating a ligand for a protein of interest (POI) with an Hsp ligand, HspTACs harness the chaperone function of Hsp to mediate protein degradation via either the ubiquitin-proteasome system or the endosomal-lysosomal pathway. Furthermore, HspTACs capitalize on the characteristic overexpression of Hsp70 or Hsp90 in tumor cells; this feature promotes their preferential accumulation within these cells, thereby enabling tumor-selective degradation of the target protein (POI) specifically within Hsp-abundant tumor cells.

Hsp-targeting Chimeras Isoform Specific Products:

Hsp-targeting Chimeras Isoform Comparison
Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-152263
    HEMTAC CDK4/6 degrader 1 2821803-61-4 98.18%
    HEMTAC CDK4/6 degrader 1 is a PROTAC connected by ligands for HSP90 and CDK4/6 with a Kd value of 35.7 μM. HEMTAC CDK4/6 degrader 1 induces CDK4/6 degradation in B16F10 melanoma cells. HEMTAC CDK4/6 degrader 1 arrests cell cycle at G0/G1 phase and induces apoptosis. HEMTAC CDK4/6 degrader 1 can be used in research of cancer. HEMTAC CDK4/6 degrader 1 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    HEMTAC CDK4/6 degrader 1
  • HY-173320
    HEMTAC WEE1 degrader-1 3002417-64-0 99.78%
    HEMTAC WEE1 degrader-1 is a HSP90-mediated targeting chimera (HEMTAC) degrader of WEE1 (HSP90 enzyme inhibitory activity is IC50: 16.76 nM). HEMTAC WEE1 degrader-1 promotes the ubiquitination and degradation of WEE1. HEMTAC WEE1 degrader-1 blocks the G2/M cell cycle. HEMTAC WEE1 degrader-1 has anticancer activity in acute myeloid leukemia (AML) patient-derived xenograft (PDX) models. HEMTAC WEE1 degrader-1 can be used in AML research. (Pink: HSP90 binder; Blue: WEE1 ligand; Black: linker).
    HEMTAC WEE1 degrader-1
  • HY-W470101
    HIF-2α-IN-17 861212-49-9
    HIF-2α-IN-17 is a selective hypoxia-inducible factor 2α (HIF2α) inhibitor that binds to the PAS-B domain of HIF2α. HIF-2α-IN-17 disrupts the interaction between HIF2α and the molecular chaperone Hsp70, leading to proteasomal degradation of HIF2α. HIF-2α-IN-17 exhibits antitumor activity and induces apoptosis in cancer cells. HIF-2α-IN-17 is applicable for research on cancers such as clear cell renal cell carcinoma.
    HIF-2α-IN-17
  • HY-182959
    Hsp70TAC PD-1 Degrader-2
    Hsp70TAC PD-1 Degrader-2 is a PD-L1 Hsp70TAC (Hsp70-targeting Chimeras) degrader with Kd values of 0.36 μM. Hsp70TAC PD-1 Degrader-2 forms a ternary complex with Hsp70 and PD-L1 to drive PD-L1 degradation. Hsp70TAC PD-1 Degrader-2 induces degradation of mature membrane-bound PD-L1 in an Hsp70-dependent manner and via caveolin-mediated endocytosis and lysosomal trafficking. Hsp70TAC PD-1 Degrader-2 accumulates preferentially in tumor cells with elevated Hsp70 expression for tumor-selective PD-L1 degradation. Hsp70TAC PD-1 Degrader-2 can be used for the research of cancer, such as breast invasive carcinoma, glioblastoma multiforme, diffuse large b-cell lymphoma. (Pink: PD-1/PD-L1 ligand (HY-19745A); Blue: Hsp70 ligand (HY-182979); Black: linker (HY-182982)).
    Hsp70TAC PD-1 Degrader-2
  • HY-182809
    Androgen receptor degrader-6 1372688-55-5
    Androgen receptor degrader-6 is a blood-brain barrier-permeable AR degrader. Androgen receptor degrader-6 inhibits the chaperone activity of HSP27 and disrupts the HSP27-AR complex. Androgen receptor degrader-6 promotes the degradation of wild-type and mutant AR, reduces AR protein levels, and inhibits the growth of glioblastoma cells. Androgen receptor degrader-6 can be used in glioblastoma research.
    Androgen receptor degrader-6
  • HY-178496
    DDO3602
    DDO3602 is a PARP1 HEMTAC degradation agent mediated by HSP90. DDO3602 has good anti-tumor activity and tumor selectivity. DDO3602 induces G2/M phase arrest, DNA damage, and inhibits cell migration by degrading PARP1 in MCF-7 cells (IC50 = 187 nM). DDO3602 can be used for research on cancer such as breast cancer. (Pink: PARP1 Ligand (HY-75706); Blue: HSP90 Ligand (HY-179203); Black: Linker (HY-W015300))
    DDO3602
  • HY-182958
    Hsp70TAC BRD4 Degrader-1
    Hsp70TAC BRD4 Degrader-1 is a degrader targeting BRD4, with a KD value of 0.22 μM. Hsp70TAC BRD4 Degrader-1 forms a ternary complex with Hsp70 (KD: 5.13 μM), and specifically and efficiently degrades intracellular BRD4 via the ubiquitin-proteasome pathway. Hsp70TAC BRD4 Degrader-1 exhibits potent anti-tumor proliferative activity. Hsp70TAC BRD4 Degrader-1 can be used in studies related to triple-negative breast cancer and glioblastoma multiforme. (Pink: BRD4 ligand (HY-78695); Blue: HSP70 ligand (HY-182979); Black: linker (HY-B0236)).
    Hsp70TAC BRD4 Degrader-1
Hsp-targeting Chimeras Isoform Comparison

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