HSP
Heat shock proteins (HSPs) are molecular chaperones that support proteostasis by preventing protein misfolding and aggregation during nascent-chain folding and cellular stress[1]. Mechanistically, HSP70 acts upstream on nascent and newly synthesized polypeptides, while HSP90 supports folding and maturation of selected client proteins through coordinated chaperone cycles[1][2]. In cancer models, HSP90 buffers oncogenic signaling proteins and enables malignant cells to tolerate imbalanced signaling, making HSP90 inhibition a practical strategy for disrupting multiple client pathways[3][4]. Compared with ATP-dependent HSP70/HSP90 systems, HSP27/HSPB1 is a small heat shock protein whose oligomer-monomer dynamics regulate chaperone activity and whose redox-sensitive monomers suppress aggregation in vitro[5]. HSP27 also regulates apoptosis by interacting with cytochrome c and blocking downstream apoptotic complex formation, supporting its use in cell-death and stress-response experiments[6]. For experimental applications, HSP90 inhibitors provide tools to test client-protein dependence, while HSP27-focused assays can examine aggregation control, redox stress, and apoptosis regulation[4][5][6].
References:
- [1]. Hartl FU, et al. Molecular chaperones in the cytosol: from nascent chain to folded protein. Science. 2002 Mar 8;295(5561):1852-8. [Content Brief]
- [2]. Dahiya V, et al. The switch from client holding to folding in the Hsp70/Hsp90 chaperone machineries is regulated by a direct interplay between co-chaperones. Mol Cell. 2022 Apr 21;82(8):1543-1556.e6. [Content Brief]
- [3]. Whitesell L, et al. HSP90 and the chaperoning of cancer. Nat Rev Cancer. 2005 Oct;5(10):761-72. [Content Brief]
- [4]. Neckers L, et al. Hsp90 molecular chaperone inhibitors: are we there yet? Clin Cancer Res. 2012;18(1):64-76.
- [5]. Alderson TR, et al. Local unfolding of the HSP27 monomer regulates chaperone activity. Nat Commun. 2019 Mar 6;10(1):1068. [Content Brief]
- [6]. Bruey JM, et al. Hsp27 negatively regulates cell death by interacting with cytochrome c. Nat Cell Biol. 2000 Sep;2(9):645-52. [Content Brief]
All Product Categories
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HSP Related Products (235)
Related Products (235)
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Antibodies (7)
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2-Chloro-ADP
0 ImagesCat. No.: HY-131776CAS No.: 16506-88-0Synonyms: 2-Chloroadenosine 5′-diphosphate2-Chloro-ADP (2-Chloroadenosine 5′-diphosphate) sis a Adenosine 5'-diphosphate (ADP; HY-W010918) derivative that induces human platelet aggregation and inhibits stimulated adenylate cyclase. 2-Chloro-ADP inhibits mortalin nucleotide-binding domain (NBD) with a Ki of 45.05 μM.
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TRC051384 (Standard)
0 ImagesCat. No.: HY-101712RCAS No.: 867164-40-7TRC051384 (Standard) is the analytical standard of TRC051384 (HY-101712). This product is intended for research and analytical applications. TRC051384 is a potent inducer of heat shock protein 70 (HSP70). TRC051384 exhibits protective effects against neuronal trauma via inhibition of necroptosis. TRC051384 can be used for the research of ischemic stroke.
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VER-82576 (Standard)
0 ImagesCat. No.: HY-10942RCAS No.: 847559-80-2Synonyms: NVP-BEP800 (Standard)VER-82576 (Standard) is the analytical standard of VER-82576 (HY-10942). This product is intended for research and analytical applications. VER-82576 (NVP-BEP800) is a potent, orally available and selective Hsp90 inhibitor, with an IC50 of 58 nM for Hsp90β; VER-82576 also slightly blocks Grp94 and Trap-1, with IC50s of 4.1 and 5.5 μM, respectively.
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Arimoclomol maleate (Standard)
0 ImagesSynonyms: BRX-220 (Standard)Arimoclomol maleate (Standard) is the analytical standard of Arimoclomol maleate (HY-106443A). This product is intended for research and analytical applications. Arimoclomol maleate (BRX-220) is an orally active co-inducer of heat shock proteins (HSP). Arimoclomol protects motor neurons by enhancing Hsp expression, thus directly affecting protein aggregation and clearance of misfolded assemblies via the proteasome-ubiquitin system.Arimoclomol maleate can be used for the study of Niemann–Pick disease type C.
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C086
0 ImagesCat. No.: HY-164465CAS No.: 1160107-44-7
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Ganetespib (Standard)
0 ImagesSynonyms: STA-9090 (Standard)Ganetespib (Standard) is the analytical standard of Ganetespib. This product is intended for research and analytical applications. Ganetespib (STA-9090) is a heat shock protein 90 (HSP90) inhibitor which exhibits potent cytotoxicity in a wide variety of hematological and solid tumor cell lines. Ganetespib has antiangiogenic effects in colorectal cancer mediated through inhibition of HIF-1α and STAT3.
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Iroxanadine hydrochloride
0 ImagesCat. No.: HY-19399DCAS No.: 276690-59-6Synonyms: (-)-BRX 005 hydrochloride; (-)-BRX 235 hydrochlorideIroxanadine (BRX 005) hydrochloride is a vasculoprotector. Iroxanadine is a p38 kinase and HSP protein dual activator. Iroxanadine hydrochloride has the potential for atherosclerosis and vascular diseases research.
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Araloside C
0 ImagesAraloside C is a natural saponin that is mainly isolated from Aralia elata. Araloside C exerts extensive anti-inflammatory properties. Araloside C exhibits protective effects against myocardial ischaemia/reperfusion injury.
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SU086
0 ImagesCat. No.: HY-200492CAS No.: 1017898-53-1SU086 is a chalcone-derived HSP90 inhibitor. SU086 interacts with HSP90, reduces HSP90 protein levels, and suppresses glycolysis in prostate cancer cells. SU086 can be used in research related to advanced prostate cancer and castration-resistant prostate cancer (CRPC).
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Tamoxifen Citrate (Standard)
0 ImagesSynonyms: ICI 46474 (Standard); (Z)-Tamoxifen Citrate (Standard); trans-Tamoxifen Citrate (Standard)Tamoxifen (Citrate) (Standard) is the analytical standard of Tamoxifen (Citrate). This product is intended for research and analytical applications. Tamoxifen Citrate (ICI 46474) is an orally active, selective estrogen receptor modulator (SERM) which blocks estrogen action in breast cells and can activate estrogen activity in other cells, such as bone, liver, and uterine cells.Tamoxifen Citrate is a potent Hsp90 activator and enhances the Hsp90 molecular chaperone ATPase activity. Tamoxifen Citrate also potent inhibits infectious EBOV Zaire and Marburg (MARV) with IC50 of 0.1 μM and 1.8 μM, respectively. Tamoxifen Citrate activates autophagy and induces apoptosis.Tamoxifen Citrate also can induce gene knockout of CreER(T2) transgenic mouse.
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Pochonin D
0 ImagesCat. No.: HY-N14780CAS No.: 544712-82-5Synonyms: (+)-Pochonin DPochonin D ((+)-Pochonin D) is an inhibitor of heat shock protein 90 (Hsp90) with antiviral and anti-inflammatory activities. Pochonin D inhibits Hsp90, affects the homeostasis, folding and assembly processes of viral proteins, and reduces the replication capacity of viruses. Pochonin D is a copper ion carrier that can induce cuproptosis in triple-negative breast cancer cells by targeting PRDX1. Pochonin D reduces the infiltration of inflammatory cells, decreases the secretion of inflammatory cytokines such as TNF-α and IL-1β, and alleviates inflammatory responses. Pochonin D is a promising candidate for research on human rhinovirus (HRV) infection and cancer.
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CCT251236 (Standard)
0 ImagesCCT251236 (Standard) is the analytical standard of CCT251236 (HY-101026). This product is intended for research and analytical applications. CCT251236 is an orally available pirin ligand from a heat shock transcription factor 1 (hsf1) phenotypic screen with an IC50 of 19 nM for inhibition of HSF1-mediated HSP72 induction.
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19-epi-Scholaricine
0 Images19-epi-Scholaricine is an orally active indole alkaloid. 19-epi-Scholaricine downregulates the expression of profibrotic/apoptotic proteins (HRAS, HSP90AA1, KDR) and upregulates the expression of cell cycle-related protein (CDK2). 19-epi-Scholaricine suppresses ROS production and reduces the release of inflammatory mediators, thereby attenuating podocyte apoptosis, renal inflammation and oxidative stress by inhibiting AKT/mTOR. 19-epi-Scholaricine can be used in the research of chronic glomerulonephritis and membranous nephropathy.
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Caesappanin C
0 ImagesCaesappanin C, a biphenyl dimer from the ethanolic extract of the heartwood of Indonesian Caesalpinia sappan L., shows strong proliferation stimulating activity against the primary osteoblastic cells in vitro. Caesappanin C has the potential to stimulate bone formation and regeneration. Caesappanin C can effectively deactivate HSV particles and bind HSV surface glycoprotein B (gB) to inhibit membrane fusion.
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Hsp90-IN-34
0 ImagesCat. No.: HY-167827CAS No.: 439588-33-7
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Derrubone
0 ImagesCat. No.: HY-187645CAS No.: 22044-58-2Derrubone is a prenylated isoflavone Hsp90 inhibitor that binds to the C-terminal ATP site of Hsp90α, stabilizes the Hsp90-client protein co-chaperone complex, and induces client protein degradation, thereby inhibiting cancer cell proliferation. Derrubone can be used for research on breast cancer, colon cancer, Alzheimer's disease, and type 2 diabetes.
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SNX-2112 (Standard)
0 ImagesCat. No.: HY-10214RCAS No.: 908112-43-6Synonyms: PF-04928473 (Standard)SNX-2112 (Standard) is the analytical standard of SNX-2112 (HY-10214). This product is intended for research and analytical applications. SNX-2112 (PF 04928473) is an orally active Hsp90 inhibitor, with a Kd of 16 nM for Hsp90 and IC50s of 30 nM, 30 nM for Hsp90 α and Hsp90 β, also induces Her-2 degradation, and inhibits Grp94 and Trap-1, with IC50s of 10 nM, 4.275 μM and 0.862 μM, respectively. SNX-2112 (PF 04928473) binds Hsp90 isoforms Hsp90α, Hsp90β and Hsp90b1/Grp94 with Kds of 4 nM, 6 nM and 484 nM, respectively.
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BIIB021 (Standard)
0 ImagesCat. No.: HY-10212RCAS No.: 848695-25-0Synonyms: CNF2024 (Standard)BIIB021 (Standard) is the analytical standard of BIIB021. This product is intended for research and analytical applications. BIIB021 (CNF2024) is an orally active, fully synthetic inhibitor of HSP90 with a Ki and an EC50 of 1.7 nM and 38 nM, respectively.
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KNK437 (Standard)
0 ImagesSynonyms: Heat Shock Protein Inhibitor I (Standard)
