l-cysteine-glutathione disulfide

L-Cysteine-glutathione disulfide, a glutathione derivative endogenous to mammalian cells, is comprised of the oxidized form of free glutathione tripeptide linked via a disulfide bond to L-cysteine. It has been shown to protect mice against acetaminophen-induced hepatotoxicity.

L-Cysteine hydrochloride hydrate (L-Cysteine hydrochloride monohydrate) is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), taurine and glutathione. L-Cysteine hydrochloride hydrate suppresses ghrelin and reduces appetite in rodents and humans.

L-Cysteine (L-(+)-Cysteine) is a non-essential sulfur-containing amino acid in humans. L-Cysteine is important for protein synthesis, detoxification, and diverse metabolic functions. Found in beta-keratin, the main protein in nails, skin, and hair, L-Cysteine is important in collagen production, as well as skin elasticity and texture. Also required in the manufacture of amino acid taurine, L-Cysteine is a component of the antioxidant glutathione, and plays a role in the metabolism of essential biochemicals such as coenzyme A, heparin, and biotin.

L-Cysteine S-sulfate (S-Sulfo-L-cysteine) is an effective N-methyl-d-aspartate (NMDA) glutamatergic receptors agonist. L-Cysteine S-sulfate is the substrate for cystine lyase [1].

S-Sulfo-L-cysteine sodium salt shows a weak affinity for mGluR1α and mGluR5a at high concentrations and has potential antioxidant activity.

L-Glutathione reduced (Glutathione) is a naturally occurring tripeptide found in cells as an endogenous antioxidant that scavenges oxygen free radicals. L-Glutathione reduced is a cofactor for certain enzymes and is involved in the rearrangement of protein disulfide bonds and the reduction of peroxides.

S-allyl-L-cysteine (S-Allylcysteine), a natural constituent of fresh garlic, has antioxidant and anticancer properties in animals.

S-(3-Carboxypropyl)-L-cysteine is a thioether derivative of L-cysteine.

γ-L-Glutamyl-S-allyl-L-cysteine is an organosulfur compound naturally present in garlic [1].

S-(N-Methylsulfinylbutylthiocarbamoyl)-L-cysteine (SFN-Cys) is an isothiocyanate derivative, functioning as an active metabolite of sulforaphane, a class I and II histone deacetylase (HDAC) inhibitor, and anticancer agent. This compound is generated from sulforaphane through intermediates - DL-sulforaphane glutathione and sulforaphane cysteinylglycine - via the mercapturic acid pathway enzymes. At a concentration of 20 µM, SFN-Cys diminishes invasion and migration of U87MG and U373 MG glioblastoma cells as observed in wound healing and chamber assays. Furthermore, at 45 µM, it significantly lowers the expression of α-tubulin, βIII-tubulin, stathmin 1, and X-linked inhibitor of apoptosis (XIAP), and also reduces cell density in paclitaxel-resistant A549 lung cancer cells (A549/T). Additionally, when used at 30 µM, SFN-Cys prompts apoptosis and cell cycle arrest at the G2/M phase in U87MG and U373 MG cells.

Glutathione can occur in reduced (GSH), oxidized (GSSG), or in mixed disulfide forms and is ubiquitous in multiple biological systems serving as the major thiol-disulfide redox buffer of the cell. GSSG is the oxidized form of GSH . It can be reduced back to GSH through the NADPH-dependent enzyme glutathione reductase. GSSG functions as a hydrogen acceptor in the enzymatic determination of NADP+ and NADPH and can be a proximal donor in S-glutathionylation post translational modifications. The ratio of reduced glutathione to oxidized glutathione within cells is often used as an indicator of oxidative stress, with higher concentrations of GSSG predicting increased oxidative stress.

Nrf2 activation of the antioxidant response element (ARE) is central to cytoprotective gene expression against oxidative and/or electrophilic stress. Unless activated by inflammatory, environmental, or oxidative stressors, Nrf2 is sequestered in the cytoplasm by its repressor, Keap1. Because of its protective capabilities, small molecules that activate Nrf2 signaling are being examined as potential anti-cancer or anti-inflammatory agents. DL-Sulforaphane N-acetyl-L-cysteine (SFN-NAC) is a major metabolite of SFN , a powerful inducer of chemopreventative enzymes via Keap1-Nrf2 signaling and ARE-driven gene expression. At 75 μM, SFN-NAC has been shown to increase ARE expression in HepG2-C8 cells. Its reported potency on ARE-related gene expression is roughly 8-fold less than SFN.

L-Deoxyalliin , also known as S-allyl-L-cysteine, is a water soluble organosulfur compound derived from garlic that has neuroprotective and antioxidative activities. N-Acetyl-S-allyl-L-cysteine is a principal metabolite of L-deoxyalliin in humans, mice, rats, and dogs. It is readily detected in plasma and urine. The conversion of L-deoxyalliin to N-acetyl-S-allyl-L-cysteine appears to be mediated by a family of flavin-containing monooxygenases.

N-acetyl-S-geranylgeranyl-L-Cysteine is a synthetic substrate for the isoprenylated protein methyltransferase (also known as S-adenosylmethionine-dependent methyltransferase). Because it is able to serve as a substrate for the methyltransferase, it effectively functions as an inhibitor of methylation of endogenous isoprenylated proteins.

S-(N-PhenethylthiocarbaMoyl)-L-cysteine (PEITC-Cys) is an anticarcinogenic agent. S-(N-PhenethylthiocarbaMoyl)-L-cysteine shows antileukemic activity which inhibits DNA synthesis in HL60 cells [1]. S-(N-PhenethylthiocarbaMoyl)-L-cysteine is an inhibitor of P450 [2].

L-Cysteine hydrochloride (L-Cysteine HCl) is a conditionally essential amino acid,L-Cysteine hydrochloride suppresses ghrelin and reduces appetite in rodents and humans

L-Cysteine S-sulfate sodium salt sesquihydrate is a useful organic compound for research related to life sciences. The catalog number is T64782 and the CAS number is 150465-29-5.

N-(((9H-Fluoren-9-yl)methoxy)carbonyl)-S-benzyl-L-cysteine is a useful organic compound for research related to life sciences. The catalog number is T67626 and the CAS number is 53298-33-2.

D-Ribose-L-cysteine is the antioxidant glutathione precursor.

S-1-Propenyl-L-cysteine, a stereoisomer of S-allyl-l-cysteine, exhibits immunomodulatory effects and has been shown to decrease blood pressure in hypertensive animal models.

S-Acetyl-L-glutathione is a derivative of glutathione .1 It increases intracellular GSH levels in primary fibroblasts derived from patients with glutathione synthetase deficiency when used at a concentration of 50 μM. S-Acetyl-L-glutathione (5 mM) induces apoptosis in Daudi, Raji, and Jurkat lymphoma cells.2 It inhibits the replication of herpes simplex virus 1 (HSV-1) in human foreskin fibroblasts when used at concentrations of 5 and 10 mM.3 S-Acetyl-L-glutathione (6.25 μg/g per day) increases survival in a mouse model of HSV-1 infection.

L-Cysteine-d3 is a deuterated compound of L-Cysteine. L-Cysteine has a CAS number of 52-90-4. L-Cysteine is a non-essential sulfur-containing amino acid in humans. L-Cysteine is important for protein synthesis, detoxification, and diverse metabolic functions. Found in beta-keratin, the main protein in nails, skin, and hair, L-Cysteine is important in collagen production, as well as skin elasticity and texture. Also required in the manufacture of amino acid taurine, L-Cysteine is a component of the antioxidant glutathione, and plays a role in the metabolism of essential biochemicals such as coenzyme A, heparin, and biotin.

S-trityl-L-Cysteine is a non-natural amino acid and an inhibitor of Eg5, also known as KSP and Kif11, a mitotic kinesin necessary for mitotic spindle formation. S-trityl-L-Cysteine inhibits the ATPase activity of Eg5 in basal and microtubule-stimulated states (IC50s = 1,000 and 140 nM, respectively). It is selective for Eg5 over nine other human kinesins in an enzyme-coupled assay. It reversibly inhibits Eg5-driven microtubule sliding velocity with an IC50 value of 500 nM using X. laevis recombinant Eg5. It induces cell cycle arrest in HeLa cells (IC50 = 700 nM), reversibly halting the cell cycle in the mitotic phase by inhibiting the separation of duplicated chromosomes and preventing bipolar spindle formation. S-trityl-L-Cysteine inhibits the growth of cancer cells in vitro when tested against the National Cancer Institute (NCI) 60 human cancer cell line panel (average GI50 = 1.3 μM) and in mouse xenograft models.

S-Geranylgeranyl-L-glutathione acts as a ligand for the orphan G protein-coupled receptor (GPCR) P2RY8, displaying selective affinity by inducing internalization of P2RY8 in preference to the sphingosine-1-phosphate receptor 2 (S1P2), GPR55, cysteinyl leukotriene receptor 1 (CysLT1 receptor), and the CysLT2 receptor at a concentration of 100 nM. Additionally, at a lower concentration of 10 nM, S-Geranylgeranyl-L-glutathione inhibits the chemokine (C-X-C motif) ligand 12-induced migration of both P2RY8-expressing WEHI-231 B cell lymphoma cells and human tonsil germinal center B cells.

S-Methyl-L-cysteine (S-Methylcysteine) is a natural product that acts as a substrate in the catalytic antioxidant system mediated by methionine sulfoxide reductase A (MSRA), with neuroprotective, antioxidative, and anti-obesity activities.

S-(Acetamidomethyl)-N-(tert-butoxycarbonyl)-L-cysteine is a useful organic compound for research related to life sciences. The catalog number is T65253 and the CAS number is 19746-37-3.

S-(2-Carboxyethyl)-L-cysteine (S-Carboxyethylcysteine), a modified sulfur amino acid, occurs naturally in Acacia seeds. This compound influences protein utilization in rats and suppresses methionine-induced growth rates while adversely affecting plasma amino acid concentrations in these animals [1].

L-Cysteine methyl ester hydrochloride (L-Cysteine methyl ester hydrochloride (Acdrile)) is an antitussive and an expectorant agent, used to relieve breathing difficulties caused by mucus.

Thiola-cysteine disulfide is a urinary metabolite of thiola.

N-(((9H-Fluoren-9-yl)methoxy)carbonyl)-S-(tert-butylthio)-L-cysteine is a useful organic compound for research related to life sciences. The catalog number is T66172 and the CAS number is 73724-43-3.

N-Acetyl-L-cysteine ethyl ester (NACET) is a derivative of the amino acid-L-cysteine. N-Acetyl-L-cysteine ethyl ester has been shown to have a wide range of biochemical and physiological effects, including inhibition of protein synthesis, inhibition of DNA replication, and induction of apoptosis. It has also been shown to have anti-inflammatory, anti-oxidant, and anti-cancer activity.

D/L-Cysteine is a useful organic compound for research related to life sciences. The catalog number is T125019 and the CAS number is 3374-22-9.

Glutathione oxidized (L(-)-Glutathione) is a GLUTATHIONE dimer formed by a disulfide bond between the cysteine sulfhydryl side chains during the course of being oxidized.

D-Cysteine is the D-isomer of cysteine and a powerful inhibitor of the growth of E. coli. D-cysteine is mediated by D-amino acid oxidase to produce H2S, and is a neuroprotective agent against cerebellar ataxia. D-cysteine can inhibit the growth and cariog

Cysteine monohydrate is a semi-essential proteinogenic amino acid.

Cysteine hydrazide is an enrichment tool for the mass spectrometric characterization of bacterial-free oligosaccharides.