2. Signaling Pathways
  3. Cell Cycle/DNA Damage
    Metabolic Enzyme/Protease
  4. PDI

PDI

Protein Disulfide Isomerases

PDI (Protein disulfide isomerases) is a 55-kDa protein and consists of four domains namely a, b, b', a'. PDI is an abundant enzyme in the endoplasmic reticulum (ER). PDI, a prototypic thiol isomerase, is an important oxidase, reductase, isomerase and molecular chaperone. It can distinguish between partially folded, unfolded, and properly folded protein substrates, and catalyze the formation and cleavage of thiol-disulfide bonds during protein folding in the ER. PDI can also maintain active conformation of the β subunit of collagen prolyl 4-hydroxylase and stabilization of the major histocompatibility complex's (MHC) class 1 peptide loading complex (PLC). PDI expression is up-regulated in select types of cancers[1][2].

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-W107464
    G6PDi-1
    		99.53%
    G6PDi-1 is a reversible and non-competitive glucose-6-phosphate dehydrogenase (G6PD) inhibitor with an IC50 of 0.07 μM for human G6PD. G6PDi-1 depletes NADPH most strongly in lymphocytes. G6PDi-1 markedly decreases inflammatory cytokine production in T cells.
    G6PDi-1
  • HY-107193
    Bacitracin
    		Inhibitor
    Bacitracin is a polypeptide antibiotic against staphylococcal and pathogenic protozoa infections. Bacitracin inhibits cell wall biosynthesis and permeability through binding to the undecaprenyl pyrophosphate. Bacitracin inhibits macromolecular synthesis. Bacitracin is also a protein disulfide isomerase (PDI) inhibitor.
    Bacitracin
  • HY-W012530
    Phenylpyruvic acid
    		99.93%
    Phenylpyruvic acid is a precursor of the antifungal compound phenyllactic acid. Phenylpyruvic acid can improve the antifungal activity of eight lactic acid bacterial strains through the addition into a dedined growth medium. Phenylpyruvic acid demonstrates improved inhibitory activity against fungal bread contaminants Aspergillus niger and Penicillium roqueforti. Phenylpyruvic acid affects enzyme activity of the pentose phosphate pathway involved in the oxidative phase in rat brain homogenates. Phenylpyruvic acid can reduce glucose-6-phosphate dehydrogenase activity.
    Phenylpyruvic acid
  • HY-100432
    LOC14
    		98.0%
    LOC14 is a potent Protein disulfide isomerase (PDI) inhibitor with EC50 and Kd values of 500 nM and 62 nM, respectively. LOC14 exhibits high stability in mouse liver microsomes and blood plasma, low intrinsic microsome clearance, and low plasma-protein binding. LOC14 inhibits PDIA3 activity, decreases intramolecular disulfide bonds and subsequent oligomerization (maturation) of HA in lung epithelial cells.
    LOC14
  • HY-100433
    PACMA 31
    		99.32%
    PACMA 31 is an irreversible, orally active protein disulfide isomerase (PDI) inhibitor with an IC50 of 10 μM. PACMA 31 forms a covalent bond with the active site cysteines of PDI. PACMA 31 shows tumor targeting ability and significantly suppresses ovarian tumor growth without causing toxicity to normal tissues. PACMA 31 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    PACMA 31
  • HY-W015811
    3-N-Propylphenol
    		Inhibitor 98.49%
    3-N-Propylphenol is a small phenolic derivative containing a hydroxyl aryl group that competitively inhibits the binding of the peptide to pancreatic-specific protein disulfide isomerase (PDIp). 3-Propylphenol can be used for research on pancreatic-related diseases.
    3-N-Propylphenol
  • HY-181574
    PDI-IN-5
    		Inhibitor
    PDI-IN-5 (compound 30z) is an allosteric-covalent inhibitor targeting protein disulfide isomerase (PDI) with a 2-chloro-pyrrolopyrimidin-4-one scaffold, with an IC50 of 0.4 μM. PDI-IN-5 exhibits selectivity for ERp57 and GPX4, and inhibits glioblastoma. PDI-IN-5 can be used in glioblastoma-related research.
    PDI-IN-5
  • HY-N19464
    Dicentrinone
    		Inhibitor
    Dicentrinone is an orally active PDI inhibitor with an IC50 value of 43.95 μM. Dicentrinone directly binds to PDI and suppresses cell proliferation and reduces cancer cell viability. Dicentrinone elicits anti-inflammatory and antioxidant effects by suppressing leukocyte migration, plasma leakage and paw edema, and scavenging free radicals. Dicentrinone can be used in the research of hepatoma, rheumatism and arthritis.
    Dicentrinone
  • HY-100430
    CCF642
    		Inhibitor 98.0%
    CCF642 is a potent protein disulfide isomerases (PDI) inhibitor with an IC50 of 2.9 μM. CCF642 causes acute endoplasmic reticulum (ER) stress in multiple myeloma cells accompanied by apoptosis-inducing calcium release. CCF642 has broad anti-multiple myeloma activity.
    CCF642
  • HY-B1228
    Ribostamycin sulfate
    		Inhibitor 99.55%
    Ribostamycin sulfate (Vistamycin sulfate) is a broad-spectrum antimicrobial, inhibits bacterial protein synthesis at the level of 30S and 50S ribosomal subunit binding, also inhibits the chaperone activity of protein disulfide isomerase (PDI), used in pharmacokinetic and nephrotoxicity studies.
    Ribostamycin sulfate
  • HY-122895
    E64FC26
    		Inhibitor 98.48%
    E64FC26 is a potent pan-inhibitor of the protein disulfide isomerase (PDI) family, with IC50s of 1.9, 20.9, 25.9, 16.3, and 25.4 μM against PDIA1, PDIA3, PDIA4, TXNDC5, and PDIA6, respectively. E64FC26 shows anti-myeloma activity.
    E64FC26
  • HY-117570
    KSC-34
    		99.94%
    KSC-34, a covalent modifier of protein disulfide isomerase A1 (PDIA1), is also a selective and potent a-site inhibitor of PDIA1 with an IC50 of 3.5 μM. KSC-34 displays a 30-fold selectivity for a domain over a′ domain and displays high selectivity for PDIA1 in complex proteomes with minimal engagement of other members of the PDI family. KSC-34 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    KSC-34
  • HY-111117
    3-Methyltoxoflavin
    		98.62%
    3-Methyltoxoflavin is a potent Protein disulfide isomerase (PDI) inhibitor, with an IC50 of 170 nM.
    3-Methyltoxoflavin
  • HY-W012530R
    Phenylpyruvic acid (Standard)
    Phenylpyruvic acid (Standard) is the analytical standard of Phenylpyruvic acid. This product is intended for research and analytical applications. Phenylpyruvic acid is a precursor of the antifungal compound phenyllactic acid. Phenylpyruvic acid can improve the antifungal activity of eight lactic acid bacterial strains through the addition into a dedined growth medium. Phenylpyruvic acid demonstrates improved inhibitory activity against fungal bread contaminants Aspergillus niger and Penicillium roqueforti. Phenylpyruvic acid affects enzyme activity of the pentose phosphate pathway involved in the oxidative phase in rat brain homogenates. Phenylpyruvic acid can reduce glucose-6-phosphate dehydrogenase activity.
    Phenylpyruvic acid (Standard)
  • HY-122895A
    (E/Z)-E64FC26
    		Inhibitor 99.80%
    (E/Z)-E64FC26 is a mixture complex of E-E64FC26 and Z-E64FC26. E64FC26 (E-E64FC26) is a potent pan-inhibitor of the protein disulfide isomerase (PDI) family, with IC50s of 1.9, 20.9, 25.9, 16.3, and 25.4 μM against PDIA1, PDIA3, PDIA4, TXNDC5, and PDIA6. E64FC26 shows anti-myeloma activity.
    (E/Z)-E64FC26
  • HY-114086
    ML359
    		99.45%
    ML359 is a potent, selctive and reversible inhibitor of protein disulfide isomerase (PDI), with an IC50 of 250 nM. ML359 can prevent thrombus formation in vivo.
    ML359
  • HY-124866
    PDI-IN-3
    		Inhibitor 98.0%
    PDI-IN-3 (compound 16F16) is a protein disulfide isomerase (PDI) inhibitor. PDI-IN-3 inhibits cell viability.
    PDI-IN-3
  • HY-W009300
    4-Hydroxyestrone
    		≥99.0%
    4-Hydroxyestrone (4-OHE1) is a brain-penetrant estrogen metabolite. 4-Hydroxyestrone shows neuroprotective effects involving increased cytoplasmic localization of p53 resulting from SIRT1-mediated p53 deacetylation. 4-Hydroxyestrone relies on PDI to mediate its protective effect against chemically induced ferroptosis in estrogen receptor-negative cancer cells. 4-Hydroxyestrone inhibits lipid peroxidation and lipid-ROS accumulation. 4-Hydroxyestrone blocks preovulatory luteinizing hormone surges in Rattus norvegicus. 4-Hydroxyestrone can be used for the researches of neurodegeneration, breast cancer and endocrine disease.
    4-Hydroxyestrone
  • HY-N2163
    Mudanpioside C
    		Inhibitor 98.20%
    Mudanpioside C is a protein disulfide isomerase (PDI) inhibitor with a human IC50 of 3.31 μM and human Kd of 3.9 μM. Mudanpioside C suppresses collagen-induced platelet aggregation, interferes with platelet activation, adhesion, and spreading. Mudanpioside C can be used for the research of cardiovascular diseases.
    Mudanpioside C
  • HY-W009300S
    4-Hydroxyestrone-d4
    		99.35%
    4-Hydroxyestrone (4-OHE1)-d4 is the deuterium labeled 4-Hydroxyestrone (HY-W009300). 4-Hydroxyestrone is a brain-penetrant estrogen metabolite. 4-Hydroxyestrone shows neuroprotective effects involving increased cytoplasmic localization of p53 resulting from SIRT1-mediated p53 deacetylation. 4-Hydroxyestrone relies on PDI to mediate its protective effect against chemically induced ferroptosis in estrogen receptor-negative cancer cells. 4-Hydroxyestrone inhibits lipid peroxidation and lipid-ROS accumulation. 4-Hydroxyestrone blocks preovulatory luteinizing hormone surges in Rattus norvegicus. 4-Hydroxyestrone can be used for the researches of neurodegeneration, breast cancer and endocrine disease.
    4-Hydroxyestrone-d<sub>4</sub>
Cat. No. Product Name / Synonyms Application Reactivity