catalase

Catalase is an essential enzyme in the metabolism of H2O2 and reactive oxygen species (ROS), making it useful for tumor research. Solutions of catalse should not be frozen. Frozen solution will result in a 50-70% loss of activity. Catalase is recommended to be prepared freshly before use.

EUK-134, a synthetic superoxide dismutase (SOD)/catalase mimetic, exhibits potent antioxidant activities and inhibits the formation of β-amyloid and related amyloid fibrils.

3-Amino-1,2,4-triazole (Trapidil impurity B) is an inhibitor of catalase, capable of inducing the compensatory mechanism for hydrogen peroxide detoxification. This mechanism involves increasing the activities of glutathione peroxidase and glutathione reductase.

Manganese(salen) chloride (EUK-8) is a superoxide dismutase and catalase mimetic, serving as an antioxidant with oxyradical scavenging properties, and ameliorates acute lung injury in endotoxemic swine.

Gepotidacin mesylate dihydrate (GSK2140944 mesylate dihydrate) is an orally available triazaacenaphthylene antibiotic with antibacterial activity. Gepotidacin mesylate dihydrate is an inhibitor of bacterial type II topoisomerase. Gepotidacin mesylate dihydrate inhibits bacterial DNA replication by blocking topoisomerase and can be used to study bacterial infection.

3-Phenyllactic acid (PhLA) is a broad spectrum antimicrobial compound active against bacteria and fungi, DL-3-Phenyllactic acid (3-Phenyllactic acid) is a reagent involved in biological studies of nantioselectivity of lipase in transesterification and oxidation by glycolate oxidase and catalase.

2-Pyridinecarbohydrazide (2-Picolinyl hydrazide) is an effective inhibitor of Catalase-peroxidase-NAPDH.

Antifungalagent 117 is a bipyrrole carboxamide derivative with antifungal activity, exhibiting an EC50 value of 11.58 mg/L against Sclerotinia sclerotiorum. This compound induces cell death by increasing cell membrane permeability, causing an imbalance in osmotic pressure between the interior and exterior of the cell. It also promotes oxidative damage to the cell membrane by inducing the accumulation of reactive oxygen species (ROS), leading to the leakage of cellular contents. RNA sequencing analysis has demonstrated that Antifungalagent 117 disrupts cell membrane structure by downregulating catalase genes and upregulating neutral ceramidase genes, accelerating ceramide metabolism and hastening cell death. The compound holds significant potential for application in plant protection and the control of fungal infections.

ALR2-IN-9 is a potent inhibitor of ALR2 with an IC50 of 21.8 nM, demonstrating excellent antioxidant activity with an EC50 of 2.8 μM in DPPH free radical scavenging. It directly interacts with reactive oxygen (ROS) and reactive nitrogen species (RNS), blocking free radical chain reactions, and acts as an endogenous enzyme antioxidant regulator to modulate catalase (CAT) and superoxide dismutase (SOD) enzyme functions. By influencing the PI3K/Akt/Nrf2 pathway, ALR2-IN-9 inhibits excessive mitochondrial superoxide production induced by hyperglycemia in vitro and ameliorates oxidative stress induced by CuSO4 and H2O2 in vivo models. The compound also extends the lifespan of *Caenorhabditis elegans* by regulating stress response genes such as PMK-1 and shows potential as an anti-aging candidate. ALR2-IN-9 can be utilized in diabetes complication research.

Anti-inflammatory agent 107 is an orally effective compound that serves as a potent anti-inflammatory agent. It inhibits NF-κB with a strong binding affinity of -9.4578 kcal/mol. The agent reduces levels of inflammatory markers such as TNF-α, IL-6, INF-γ, NF-κβ, CRP (C-reactive protein), and ESR (Erythrocyte Sedimentation Rate). Additionally, it enhances the activity of endogenous antioxidant systems by increasing SOD (superoxide dismutase), CAT (catalase), and GSH (glutathione). Notably, Anti-inflammatory agent 107 exhibits no hepatic or renal toxicity and provides significant protective effects for the liver and kidneys. It also improves leukocyte infiltration and tissue edema in a dose-dependent manner, making it valuable for anti-inflammatory research.

AF03 is a larvicide targeting the larvae of Aedes aegypti mosquitoes, with an LC50 value of 41.6 μg/mL. It binds stably to the mosquito's sterol carrier protein-2 (AeSCP-2), disrupting lipid metabolism in the larvae. AF03 also increases acetylcholinesterase (AChE) activity in the zebrafish brain, slightly enhances catalase (CAT) activity in the liver and heart, and boosts superoxide dismutase (SOD) activity in the brain. It can be applied in research on arboviral infections such as dengue fever.

4'-Acetoxy resveratrol is a derivative of Resveratrol. In human skin models, this compound enhances the gene expression of elastin, type III and IV collagen, superoxide dismutase (SOD), and catalase (CAT), while reducing the expression of interleukins (IL-1A, IL-1R2, IL-6, IL-8) and cyclooxygenase-2 (COX-2). It is applicable for skin research.

Diallyl tetrasulfide is an organosulfur compound that has been found in A. sativum and has diverse biological activities, including antimicrobial, antioxidant, and anticancer properties.[1],[2],[3],[4] It is active against the bacteria S. aureus and methicillin-resistant S. aureus (MRSA; MICs = 0.5 and 2 mg/L, respectively), as well as the fungi C. albicans, C. krusei, C. glabrata, A. niger, A. flavus, and A. fumigatus (MICs = 0.5, 4, 2, 1, 2, and 4 mg/L, respectively).[1] It reduces cadmium-induced increases in hepatic levels of thiobarbituric acid reactive substances (TBARS) and increases cadmium-induced decreases in the hepatic activity of superoxide dismutase (SOD1), catalase, GST, and glucose-6-phosphate dehydrogenase (G6PDH) in rats when administered at a dose of 40 mg/kg.[2] Diallyl tetrasulfide is cytotoxic to MCF-7 breast cancer cells (IC50 = 92 μM) and reduces tumor growth in a BGC-823 mouse xenograft model when administered at doses of 20, 30, and 40 mg/kg for 32 days.[3],[4]

AMK is an active metabolite of the neurohormone melatonin .1,2,3,4It is formed from melatoninviathe metabolic intermediate AFMK that is then deformylated by catalase or formamidase.5,6AMK scavenges singlet oxygenin vitrowhen used at a concentration of 200 μM.1It inhibits the epinephrine- and arachidonic acid-induced production of prostaglandin E2and PGD2in ovine seminal vesicle microsomes in a concentration- and time-dependent manner, as well as LPS-induced increases in COX-2 levels in RAW 264.7 macrophages when used at a concentration of 500 μM.2,3AMK (20 mg/kg) decreases MPTP-induced increases in lipid peroxidation in the cytosol and mitochondria from substantia nigra and striatum in a mouse model of MPTP-induced Parkinson's disease.4 1.Schaefer, M., and Hardeland, R.The melatonin metabolite N1-acetyl-5-methoxykynuramine is a potent singlet oxygen scavengerJ. Pineal Res.46(1)49-52(2009) 2.Kelly, R.W., Amato, F., and Seamark, R.F.N-acetyl-5-methoxy kynurenamine, a brain metabolite of melatonin, is a potent inhibitor of prostaglandin biosynthesisBiochem. Biophys. Res. Commun.121(1)372-379(1984) 3.Mayo, J.C., Sainz, R.M., Tan, D.-X., et al.Anti-inflammatory actions of melatonin and its metabolites, N1-acetyl-N2-formyl-5-methoxykynuramine (AFMK) and N1-acetyl-5-methoxykynuramine (AMK), in macrophagesJ. Neuroimmunol.165(1-2)139-149(2005) 4.Tapias, V., Escames, G., López, L.C., et al.Melatonin and its brain metabolite N1-acetyl-5-methoxykynuramine prevent mitochondrial nitric oxide synthase induction in parkinsonian miceJ. Neurosci. Res.87(13)3002-3010(2009) 5.Tan, D.-X., Manchester, L.C., Reiter, R.J., et al.Melatonin directly scavenges hydrogen peroxide: A potentially new metabolic pathway of melatonin biotransformationFree Radic. Biol. Med.29(11)1177-1185(2000) 6.Hirata, F., Hayaishi, O., Tokuyama, T., et al.In vitro and in vivo formation of two new metabolites of melatoninJ. Biol. Chem.249(4)1311-1313(1974)

Ibuprofen carboxylic acid is a major metabolite of ibuprofen . It prevents fructose-, cyanate-, and prednisolone-induced inactivation of catalase and fructose- and cyanate-induced inactivation of fumarase when used at a concentration of 2 mM and penetrates into the lens of isolated bovine eyes. Ibuprofen carboxylic acid has been found in bank filtrate and surface water, as well as influent and effluent wastewater, and is considered a micropollutant.

(E)-3,4-Dimethoxycinnamic acid is a less active isomer of 3,4-dimethoxycinnamic acid, a natural monomer from Securidaca inappendiculata Hassk. It exerts anti-apoptotic effects in L-02 cells via ROS-mediated signaling, showing potential in research related to inflammation and immunology.

Morin monohydrate (oxylon pomiferum monohydrate) is a flavonoid extracted from Morus alba plant with anticancer, antioxidant, and anti-inflammatory activities, which reduces T-2 toxin-induced TNF-alpha, COX-2, IL-1β, IL-6, caspase-1, caspase-3, and caspase-11 mRNA. BML-286 is a WNP-containing WNP-containing BML-286, which reduces T-2 toxin-induced TNF-α, COX-2, IL-1β, IL-6, caspase-1, caspase-3, and caspase-11 mRNA expression, and ameliorates T-2 toxin-induced injury by decreasing malondialdehyde (MDA) and increasing superoxide dismutase (SOD), catalase (CAT), glutathione (GSH), and glutathione peroxidase (GSH-PX).

BTA-EG6 is a novel catalase-amyloid interaction inhibitor, penetrating the blood-brain barrier and protecting cells from Aβ-induced toxicity.

HMS607P03 is an activator of SIRT1 which induces autophagic cell death via the AMPK-mTOR-ULK complex and induces mitophagy by the SIRT1-PINK1-Parkin pathway. HMS607P03 downregulates 14-3-3γ, catalase, profilin-1, and HSP90α.

Dapsone hydroxylamine (DDS-NOH) promotes methemoglobinemia, impedes catalase (CAT) activity, and suppresses the generation of reactive oxygen species, while also exhibiting anti-inflammatory properties [1].

SP4f, an activator of PPAR-γ, exhibits an EC50 value of 826 nM in HK-2 cells. In Swiss albino mice, it diminishes blood glucose levels and lipid peroxidation while enhancing glutathione levels and catalase activity [1].

InhA-IN-2 directly inhibits InhA and does not require activation by the catalase peroxidase KatG.

Taraxerone has allelopathic and antifungal effects.Taraxerone prevents catalase, superoxide dismutase, and reduces glutathione concentrations from the decrease induced by ethanol administration with the concentration dependent manner.

DL-3-Phenyllactic acid D3 is a deuterated compound of DL-3-Phenyllactic acid. DL-3-Phenyllactic acid (PhLA) is a broad spectrum antimicrobial compound active against bacteria and fungi, DL-3-Phenyllactic acid (3-Phenyllactic acid) is a reagent involved in biological studies of nantioselectivity of lipase in transesterification and oxidation by glycolate oxidase and catalase.