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thioesterases

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Apoptosis (4) Autophagy (3) Bacterial (3) Biochemical Assay Reagents (2) Calcium Channel (1) Cathepsin (1) DNA/RNA Synthesis (1) Elastase (1) Fatty Acid Synthase (FASN) (1) Fluorescent Dye (1) Herbicide (1) HSV (1) IFNAR (1) Parasite (1) Phospholipase (4) Ras (1) Reactive Oxygen Species (ROS) (1) Reference Standards (1) SARS-CoV (1) Ser/Thr Protease (1)
By Research Areas:	Cancer (9) Infection (6) Inflammation/Immunology (2) Metabolic Disease (3) Neurological Disease (2)

Inhibitors & Agonists

Peptides

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-134124

Glutathione ethyl ester	Reactive Oxygen Species (ROS)	Metabolic Disease
Glutathione ethyl ester is a cell-permeable GSH donor and provides an efficient supply of GSH to the oocyte. Glutathione ethyl ester shows positive effect on the in vitro production of embryos by enhancement of the antioxidative defense .

HY-100736

ML348 Maximum Cited Publications 10 Publications Verification GNF-Pf-1127	Phospholipase	Cancer
ML348 (GNF-Pf-1127) is a selective and reversible *acyl-protein thioesterase* 1 (APT1)/lysophospholipase 1 (LYPLA1) inhibitor with an IC₅₀** of 210 nM, and barely inhibits LYPLA2 .

HY-100737

ML349 5+ Cited Publications	Phospholipase	Cancer
ML349 is a potent and specific *acyl protein thioesterase* 2(APT2)/lysophospholipase 2 (LYPLA2) inhibitor with a K_i of 120 nM. ML349 is also an inhibitor of LYPLA2 with an IC₅₀** of 144 nM .

HY-111621

DC661 5+ Cited Publications	Autophagy Apoptosis	Cancer
DC661 is a potent palmitoyl-protein thioesterase 1 (PPT1) inhibitor, inhibits autophagy, and acts as an anti-lysosomal agent. Anti-cancer activity .

HY-18522

AA26-9	Phospholipase	Metabolic Disease
AA26-9 is a potent and broad spectrum serine hydrolase inhibitor. AA26-9 targets included serine peptidases, lipases, amidases, esterases, and thioesterases. AA26-9 shows inhibitory activity against approximately 1/3 of the 40+ serine hydrolases detected in immortalized T cell lines .

HY-145519

Mu-6S-Palm-β-Glc	Fluorescent Dye	Neurological Disease
Mu-6S-Palm-β-Glc is a fluorogenic substrate for palmitoyl-protein thioesterase (PPT). Mu-6S-Palm-β-Glc can be used for the research of neuronal ceroid lipofuscin disease in infants .

HY-137978

Ezurpimtrostat 3 Publications Verification GNS561	SARS-CoV IFNAR Autophagy Apoptosis	Infection Metabolic Disease Inflammation/Immunology Cancer
Ezurpimtrostat (GNS561) is an orally active PPT1 inhibitor, autophagy inhibitor, immunomodulator, anti-inflammatory agent, and anticancer agent. Ezurpimtrostat inhibits PPT1, dysregulates lysosomal function, redistributes mTOR, and induces apoptosis. Ezurpimtrostat reduces IFN‑α, CRP, immune complex deposition, and SARS‑CoV‑2 viral load. Ezurpimtrostat can be used for the study of systemic lupus erythematosus, SARS‑CoV‑2, hepatocellular carcinoma, fibrosis, and related disorders .

HY-131944

S-Acetylglutathione	Apoptosis HSV	Infection Cancer
S-Acetylglutathione is a derivative of Glutathione (HY-D0187). S-Acetylglutathione is stable in blood, and can be converted to glutathione by intracellular thioesterases. S-Acetylglutathione restores the intracellular glutathione content in glutathione synthetase deficient fibroblasts. S-Acetylglutathione exhibits antiviral efficacy in HSV-1 infected model through inhibition of viral replication. S-Acetylglutathione induces apoptosis in cancer cells MOLT4 and UKF-NB-3 .

HY-120252

ABC44	Ser/Thr Protease	Neurological Disease
ABC44 is a potent serine hydrolase inhibitor with IC₅₀s of 0.1 μM and 6.5 μM for palmitoyl protein thioesterase 1 (PPT1) in situ and in vitro, respectively. ABC44 can be used for researching infantile neuronal ceroid lipofuscinosis .

HY-W004782

3-Methylthiophene-2-carboxylic acid	Bacterial	Inflammation/Immunology
3-Methylthiophene-2-carboxylic acid (compound 3) is a potent Pseudomonas quinolone signal system protein E (PqsE) inhibitor with a K_d of 19.6 µM and an IC₅₀ of 40 µM. 3-Methylthiophene-2-carboxylic acid binds to the active center of PqsE and shows inhibition of the thioesterase activity. Methylthiophene-2-carboxylic acid can permeate into P. aeruginosa and affect 2,4-dihydroxyquinoline (DHQ) levels to a similar extent as deletion of the PqsE gene. 3-Methylthiophene-2-carboxylic acid can be used for cystic fibrosis research .

HY-118621

JCP174	Elastase Parasite	Infection
JCP174 is an inhibitor of palmitoyl protein thioesterase-1 (TgPPT1), a depalmitoylase in the parasite T. gondii . JCP174 is also an inhibitor of porcine pancreatic elastase and human leukocyte elastase .

HY-118147

ML356	Fatty Acid Synthase (FASN)	Cancer
ML356 (Compound 16) is an inhibitor for fatty acid synthase (FAS), that inhibits the thioesterase domain of FAS (FAS TE) with an IC₅₀ of 0.334 μM, and blocks the de novo palmitate synthesis in PC-3 cell with an IC₅₀ of 20 μM. ML356 exhibits good membrane permeability, and good stability in human and mouse plasma .

HY-P2424

Cholecystokinin-J CCK-J	Calcium Channel	Others
Cholecystokinin-J (CCK-J), a cholecystokinin, stimulates Ca ²⁺ release .

HY-151599

Pks13-TE inhibitor 3	Bacterial	Infection
Pks13-TE inhibitor 3 (compound 23) is a *13-Thioesterase* (Pks13-TE) inhibitor (IC₅₀=1.55 μM). Pks13-TE inhibitor 3 shows good anti-tuberculosis activity against both agent-sensitive and drug-resistant Mtb strains (MIC=0.0625-0.25 μg/mL). Pks13-TE inhibitor 3 can be used in studies of multidrug-resistant TB and extensively drug-resistant TB .

HY-151598

Pks13-TE inhibitor 2	Bacterial	Infection
Pks13-TE inhibitor 2 (compound 32) is a *13-Thioesterase* (Pks13-TE) inhibitor (IC₅₀=1.30 μM). Pks13-TE inhibitor 2 shows good anti-tuberculosis activity against both agent-sensitive and drug-resistant Mtb strains (MIC=0.0039-0.0078 μg/mL). Pks13-TE inhibitor 2 can be used in studies of multidrug-resistant TB and extensively drug-resistant TB .

HY-116846

Methyldymron	Herbicide	Others
Methyldymron is a herbicide that act on *acyl-ACP thioesterase* (FAT)** .

HY-E71068

(3S)-Malyl-CoA thioesterase	Biochemical Assay Reagents	Others
(3S)-Malyl-CoA thioesterase (EC 3.1.2.30) is stimulated by Mg2+ or Mn2+. (3S)-Malyl-CoA thioesterase (EC 3.1.2.30) has no activity with (2R,3S)-2-methylmalyl-CoA or other CoA esters.

HY-E71175

10-Deoxymethynolide synthase	Biochemical Assay Reagents	Others
10-Deoxymethynolide synthase (EC 2.3.1.239) has 29 active sites arranged in four polypeptides (pikAI-pikAIV) with a loading domain, six extension modules and a terminal thioesterase domain.

HY-152951

Palmostatin M	Ras	Cancer
Palmostatin M is a Ras signaling modulator that targets acyl-protein thioesterase 1 (APT1) and 2 (APT2) in cells, with an IC₅₀ of 2.5 nM for APT1. Palmostatin M interferes with the depalmitoylation cycle of Ras and downregulates the overall Ras signaling pathway. Palmostatin M can be used in cancer-related research .

HY-100737R

ML349 (Standard)	Phospholipase Reference Standards	Cancer
ML349 (Standard) is the analytical standard of ML349 (HY-100737). This product is intended for research and analytical applications. ML349 is a potent and specific acyl protein thioesterase 2(APT2)/lysophospholipase 2 (LYPLA2) inhibitor with a Ki of 120 nM. ML349 is also an inhibitor of LYPLA2 with an IC50 of 144 nM .

HY-183351

GN-604	Cathepsin DNA/RNA Synthesis Autophagy Apoptosis	Cancer
GN-604 is a targeted drug conjugate (Targeted Drug Conjugate, TDC) formed by conjugation of GNS561 (HY-137978) with DN604, a Pt (II) complex. GN-604 selectively inhibits PPT1, induces lysosomal dysfunction, suppresses autophagy and triggers apoptosis. GN-604 promotes the targeted sequestration of Pt (II) inside cells, induces DNA damage and inhibits the proliferation of malignant cells. GN-604 is applicable to research related to triple-negative breast cancer .

Glutathione ethyl ester	Reactive Oxygen Species (ROS)	Metabolic Disease
Glutathione ethyl ester is a cell-permeable GSH donor and provides an efficient supply of GSH to the oocyte. Glutathione ethyl ester shows positive effect on the in vitro production of embryos by enhancement of the antioxidative defense .

Autoinducing Peptide I AIP-I	Peptides	Infection
Autoinducing Peptide I is a cyclic octapeptide secreted by Staphylococcus aureus and can be used in vaccine research .

Cholecystokinin-J CCK-J	Calcium Channel	Others
Cholecystokinin-J (CCK-J), a cholecystokinin, stimulates Ca ²⁺ release .

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BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

MedchemExpress Validation 03

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred

MedchemExpress Validation 04

MedchemExpress Validation

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