product of cystine: "cysteïne".) Note: Baumann's proposed structures for cysteine and cystine (see p.302) are incorrect: for cysteine, he proposed CH3CNH2(SH)COOH...
38 KB (3,795 words) - 15:00, 29 October 2024
Cysteine metabolism refers to the biological pathways that consume or create cysteine. The pathways of different amino acids and other metabolites interweave...
6 KB (492 words) - 10:07, 7 November 2023
Cysteine dioxygenase (CDO) is a non-heme iron enzyme that catalyzes the conversion of L-cysteine to cysteine sulfinic acid (cysteine sulfinate). CDO plays...
16 KB (1,696 words) - 00:27, 28 March 2024
Cysteine proteases, also known as thiol proteases, are hydrolase enzymes that degrade proteins. These proteases share a common catalytic mechanism that...
14 KB (1,278 words) - 22:29, 25 April 2024
In enzymology, a phosphopantothenate—cysteine ligase also known as phosphopantothenoylcysteine synthetase (PPCS) is an enzyme (EC 6.3.2.5) that catalyzes...
4 KB (378 words) - 15:25, 26 August 2023
In enzymology, a cysteine transaminase (EC 2.6.1.3) is an enzyme that catalyzes the chemical reaction L-cysteine + 2-oxoglutarate ⇌ {\displaystyle \rightleftharpoons...
2 KB (147 words) - 13:40, 26 August 2023
In enzymology, a cysteine desulfurase (EC 2.8.1.7) is an enzyme that catalyzes the chemical reaction L-cysteine + [enzyme]-cysteine ⇌ {\displaystyle \rightleftharpoons...
4 KB (361 words) - 06:03, 3 November 2024
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)...
19 KB (2,296 words) - 16:36, 22 September 2024
Acetylcysteine (redirect from N-acetyl cysteine)
is available as a generic medication. The sulfur-containing amino acids cysteine and methionine are more easily oxidized than the other amino acids. Intravenous...
68 KB (6,546 words) - 17:24, 6 November 2024
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...
3 KB (24 words) - 11:46, 12 April 2023
The enzyme cysteine lyase (EC 4.4.1.10) catalyzes the chemical reaction L-cysteine + sulfite ⇌ {\displaystyle \rightleftharpoons } L-cysteate + hydrogen...
2 KB (227 words) - 18:09, 8 August 2024
product of cystine: "cysteïne".) Note: Baumann's proposed structures for cysteine and cystine (see p.302) are incorrect: for cysteine, he proposed CH3CNH2(SH)COOH...
14 KB (1,429 words) - 00:20, 1 August 2024
Cysteine methyl ester is the organic compound with the formula HSCH2CH(NH2)CO2CH3. It is a white solid substance, known as the methyl ester of the amino...
4 KB (221 words) - 03:35, 1 October 2024
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...
3 KB (97 words) - 17:48, 17 September 2023
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...
4 KB (423 words) - 14:34, 22 September 2024
S-Allylcysteine (redirect from Allyl cysteine)
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...
3 KB (203 words) - 21:32, 17 September 2023
Cysteine-rich proteins (CRP, cysteine-rich peptide or disulphide-rich peptide) are small proteins that contain a large number of cysteines. These cysteines...
8 KB (757 words) - 18:41, 22 January 2024
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...
4 KB (304 words) - 09:26, 15 April 2024
The enzyme D-cysteine desulfhydrase (EC 4.4.1.15) catalyzes the chemical reaction D-cysteine + H2O ⇌ {\displaystyle \rightleftharpoons } sulfide + NH3...
2 KB (157 words) - 05:52, 6 May 2024
Carbocisteine (redirect from S-carboxymethyl-L-cysteine)
came into medical use in 1960. Carbocisteine is produced by alkylation of cysteine with chloroacetic acid. Carbocisteine. drugbank.ca Zheng JP, Kang J, Huang...
4 KB (272 words) - 10:33, 4 October 2024
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...
30 KB (3,080 words) - 18:02, 28 October 2024
molecular biology, the protein domain SRCR is short for Scavenger receptor cysteine-rich domain. They are found solely in eukaryotes. These domains are present...
2 KB (253 words) - 22:34, 19 December 2020
Cystine–lactose–electrolyte-deficient agar (redirect from Cysteine lactose electrolyte deficient agar)
CLED agar (cystine–lactose–electrolyte-deficient agar or medium) is a valuable non-inhibitory growth medium used in the isolation and differentiation of...
2 KB (125 words) - 05:59, 18 April 2024
Alliin (redirect from S-allyl-L-cysteine sulfoxide)
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...
6 KB (476 words) - 13:03, 17 July 2024
level. Taurine is synthesized naturally in human liver from methionine and cysteine. Taurine is commonly sold as a dietary supplement, but there is no good...
29 KB (3,081 words) - 10:50, 26 October 2024
γ-L-Glutamyl-L-cysteine, also known as γ-glutamylcysteine (GGC), is a dipeptide found in animals, plants, fungi, some bacteria, and archaea. It has a relatively...
16 KB (1,629 words) - 23:26, 10 November 2024
to be discovered. Cystine was discovered in 1810, although its monomer, cysteine, remained undiscovered until 1884. Glycine and leucine were discovered...
98 KB (10,151 words) - 03:53, 21 October 2024
Disulfide (redirect from Cysteine bridge)
in biochemistry. Disulfide bridges formed between thiol groups in two cysteine residues are an important component of the tertiary and quaternary structure...
37 KB (4,482 words) - 21:26, 3 November 2024
Methylated-DNA--protein-cysteine methyltransferase (MGMT), also known as O6-alkylguanine DNA alkyltransferase AGT, is a protein that in humans is encoded...
32 KB (3,857 words) - 22:04, 28 July 2024
synthesized from L-glutamate and L-cysteine. This conversion requires the enzyme glutamate–cysteine ligase (GCL, glutamate cysteine synthase). This reaction is...
25 KB (2,681 words) - 12:59, 4 October 2024