Results 11 to 20 of about 213,170 (299)

Novel sulfur and selenium containing bis-α-amino acids from 4-hydroxyproline [PDF]

open access: yes, 2010
The synthesis of new substituted prolines carrying at C-4 a second α-amino acid residue is reported. The amino acid, l-cysteine or l-selenocysteine, is linked to the proline ring through the sulfur or the selenium atom, respectively.
CAPUTO, ROMUALDO   +4 more
core   +1 more source

Therapeutic paracetamol treatment in older persons induces dietary and metabolic modifications related to sulfur amino acids [PDF]

open access: yes, 2011
Sulfur amino acids are determinant for the detoxification of paracetamol (N-acetyl-p-aminophenol) through sulfate and glutathione conjugations. Long-term paracetamol treatment is common in the elderly, despite a potential cysteine/glutathione deficiency.
Brandolini-Bunlon, Marion   +8 more
core   +4 more sources

Remnants of an ancient metabolism without phosphate [PDF]

open access: yes, 2017
Phosphate is essential for all living systems, serving as a building block of genetic and metabolic machinery. However, it is unclear how phosphate could have assumed these central roles on primordial Earth, given its poor geochemical accessibility.
Goldford, Joshua E.   +3 more
core   +1 more source

Experimental isovalthinuria. III. Induction by bile acids, and hypocholesterolemic agents [PDF]

open access: yes, 1963
Some bile acids (dehydrocholic, cholic, chenodeoxycholic, ursodeoxycholic, and deoxycholic acids), and some hypocholesterolemic agents (22, 25 diazacholestanol, 20,25-diazacholesterol, triparanol, and SKF 525-A) are the inducers of isovalthinuria in ...
Ubuka, Toshihiko
core   +1 more source

Sulfur-Containing Amino Acids and Lipid Metabolism [PDF]

open access: yesThe Journal of Nutrition, 2020
The metabolism of methionine and cysteine in the body tissues determines the concentrations of several metabolites with various biologic activities, including homocysteine, hydrogen sulfide (H2S), taurine, and glutathione. Hyperhomocysteinemia, which is correlated with lower HDL cholesterol in blood in volunteers and animal models, has been associated ...
Blachier, Francois   +2 more
openaire   +3 more sources

Biosynthesis of thiocarboxylic acid-containing natural products. [PDF]

open access: yes, 2018
Thiocarboxylic acid-containing natural products are rare and their biosynthesis and biological significance remain unknown. Thioplatensimycin (thioPTM) and thioplatencin (thioPTN), thiocarboxylic acid congeners of the antibacterial natural products ...
Deng, Youchao   +9 more
core   +1 more source

Are we getting enough sulfur in our diet?

open access: yesNutrition & Metabolism, 2007
Sulfur, after calcium and phosphorus, is the most abundant mineral element found in our body. It is available to us in our diets, derived almost exclusively from proteins, and yet only 2 of the 20 amino acids normally present in proteins contains sulfur.
Han Bo, Nimni Marcel E, Cordoba Fabiola
doaj   +1 more source

The Sulfur-Containing Amino Acids: An Overview [PDF]

open access: yesThe Journal of Nutrition, 2006
Methionine, cysteine, homocysteine, and taurine are the 4 common sulfur-containing amino acids, but only the first 2 are incorporated into proteins. Sulfur belongs to the same group in the periodic table as oxygen but is much less electronegative. This difference accounts for some of the distinctive properties of the sulfur-containing amino acids ...
John T, Brosnan, Margaret E, Brosnan
openaire   +2 more sources

Review

open access: yes, 2020
The chalcogen elements oxygen, sulfur, and selenium are essential constituents of side chain functions of natural amino acids. Conversely, no structural and biological function has been discovered so far for the heavier and more metallic tellurium ...
Agh R   +13 more
core   +1 more source

ATP sulfurylase atypical leucine zipper interacts with Cys3 and calcineurin A in the regulation of sulfur amino acid biosynthesis in Cryptococcus neoformans

open access: yesScientific Reports, 2023
Fungal pathogens are a major cause of death, especially among immunocompromised patients. Therapies against invasive fungal infections are restricted to a few antifungals; therefore, novel therapies are necessary. Nutritional signaling and regulation are
Jeyson Pereira da Silva   +6 more
doaj   +1 more source

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