in cysteine often participates in enzymatic reactions as a nucleophile. Cysteine is chiral, but both D and L-cysteine are found in nature. L‑Cysteine is...

Cysteine dioxygenase (CDO) is a non-heme iron enzyme that catalyzes the conversion of L-cysteine to cysteine sulfinic acid (cysteine sulfinate). CDO plays...

Cysteine proteases, also known as thiol proteases, are hydrolase enzymes that degrade proteins. These proteases share a common catalytic mechanism that...

is available as a generic medication. The sulfur-containing amino acids cysteine and methionine are more easily oxidized than the other amino acids. Intravenous...

in humans. As the precursor of other non-essential amino acids such as cysteine and taurine, versatile compounds such as SAM-e, and the important antioxidant...

came into medical use in 1960. Carbocisteine is produced by alkylation of cysteine with chloroacetic acid. Carbocisteine. drugbank.ca Zheng JP, Kang J, Huang...

in biochemistry. Disulfide bridges formed between thiol groups in two cysteine residues are an important component of the tertiary and quaternary structure...

HO2CCH(NH2)CH2SCH2C=CH2. It is the S-allylated derivative of the amino acid cysteine. As such only the L-enantiomer is significant biologically. SAC constituent...

The complete data for Cysteine ( v ) General information Chemical formula: C3H7NO2S  Molar mass: 121.16 g·mol−1 Systematic name: (2R)-2-amino-3-sulfanyl-propanoic...

In enzymology, a cysteine desulfurase (EC 2.8.1.7) is an enzyme that catalyzes the chemical reaction L-cysteine + [enzyme]-cysteine ⇌ {\displaystyle \rightleftharpoons...

synthesized from L-glutamate and L-cysteine. This conversion requires the enzyme glutamate–cysteine ligase (GCL, glutamate cysteine synthase). This reaction is...

In enzymology, a cysteine transaminase (EC 2.6.1.3) is an enzyme that catalyzes the chemical reaction L-cysteine + 2-oxoglutarate ⇌ {\displaystyle \rightleftharpoons...

Taurine is synthesized naturally in the human liver from methionine and cysteine. Taurine is commonly sold as a dietary supplement, but there is no good...

Cystine is the oxidized derivative of the amino acid cysteine and has the formula (SCH2CH(NH2)CO2H)2. It is a white solid that is poorly soluble in water...

The enzyme D-cysteine desulfhydrase (EC 4.4.1.15) catalyzes the chemical reaction D-cysteine + H2O ⇌ {\displaystyle \rightleftharpoons } sulfide + NH3...

CLED agar (cystine–lactose–electrolyte-deficient agar or medium) is a valuable non-inhibitory growth medium used in the isolation and differentiation of...

Cysteine sulfinic acid is the organic compound with the nominal formula HO2SCH2CH(NH2)CO2H . It is a rare example of an amino acid bearing a sulfinic acid...

S-alkyl-L-cysteine S-oxide ⇌ {\displaystyle \rightleftharpoons } an alkyl sulfenate + 2-aminoacrylate Hence, this enzyme has one substrate, S-alkyl-L-cysteine S-oxide...

In enzymology, a phosphopantothenate—cysteine ligase also known as phosphopantothenoylcysteine synthetase (PPCS) is an enzyme (EC 6.3.2.5) that catalyzes...

The enzyme cysteine lyase (EC 4.4.1.10) catalyzes the chemical reaction L-cysteine + sulfite ⇌ {\displaystyle \rightleftharpoons } L-cysteate + hydrogen...

Papain, also known as papaya proteinase I, is a cysteine protease (EC 3.4.22.2) enzyme present in papaya (Carica papaya) and mountain papaya (Vasconcellea...

Cysteine metabolism refers to the biological pathways that consume or create cysteine. The pathways of different amino acids and other metabolites interweave...

to be discovered. Cystine was discovered in 1810, although its monomer, cysteine, remained undiscovered until 1884. Glycine and leucine were discovered...

lyase, S-alkyl-L-cysteine sulfoxide lyase, S-alkyl-L-cysteine lyase, S-alkyl-L-cysteinase, alkyl cysteine lyase, and S-alkyl-L-cysteine alkylthiol-lyase...

In enzymology, a cysteine synthase (EC 2.5.1.47) is an enzyme that catalyzes the chemical reaction O3-acetyl-L-serine + hydrogen sulfide ⇌ {\displaystyle...

Glutamate–cysteine ligase (GCL) EC 6.3.2.2), previously known as γ-glutamylcysteine synthetase (GCS), is the first enzyme of the cellular glutathione (GSH)...

a non-proteinogenic α-amino acid. It is a homologue of the amino acid cysteine, differing by an additional methylene bridge (-CH2-). It is biosynthesized...

The enzyme cysteine-S-conjugate β-lyase (EC 4.4.1.13) catalyzes the chemical reaction an L-cysteine-S-conjugate + H2O = a thiol + NH3 + pyruvate (overall...

natural constituent of fresh garlic. It is a derivative of the amino acid cysteine. When fresh garlic is chopped or crushed, the enzyme alliinase converts...

S-Aminoethyl-l-cysteine, also known as thialysine, is a toxic analog of the amino acid lysine in which the second carbon of the amino acid's R-group (side...