منابع مشابه
Conformational modulation of peptides using β-amino benzenesulfonic acid ((S)Ant).
This communication describes the utility of a conformationally restricted aromatic β-amino acid (2-aminobenzenesulfonic acid, (S)Ant) inducing various folding interactions in short peptides. Sandwiching (S)Ant between diverse amino acid residues was shown to form robust folded architectures featuring a variety of H-bonded networks, suggesting its utility in inducing peptide folding.
متن کاملExperimental and theoretical study of aqueous cis-pinonic acid photolysis.
Direct aqueous photolysis of cis-pinonic acid (PA; 2-(3-acetyl-2,2-dimethylcyclobutyl)acetic acid; CAS Registry No. 473-72-3) by 280-400 nm radiation was investigated. The photolysis resulted in Norrish type II isomerization of PA leading to 3-isopropenyl-6-oxoheptanoic acid (CAS Registry No. 4436-82-2), also known as limononic acid, as the major product, confirmed by (1)H and (13)C NMR analysi...
متن کاملIs Amino-acid Homochirality Due to Asymmetric Photolysis in Space?
It is well known that the amino acids occurring in proteins (natural amino acids) are, with rare exceptions, exclusively of the L-configuration. Among the many scenarios put forward to explain the origin of this chiral homogeneity (i.e., homochirality), one involves the asymmetric photolysis of amino acids present in space, triggered by circularly polarized UV radiation. The recent observation ...
متن کاملMicrobial desulfonation of substituted naphthalenesulfonic acids and benzenesulfonic acids.
Sulfur-limited batch enrichment cultures containing one of nine multisubstituted naphthalenesulfonates and an inoculum from sewage yielded several taxa of bacteria which could quantitatively utilize 19 sulfonated aromatic compounds as the sole sulfur source for growth. Growth yields were about 4 kg of protein per mol of sulfur. Specific degradation rates were about 4 to 14 mu kat/kg of protein....
متن کاملNitric acid photolysis on forest canopy surface as a source for tropospheric nitrous acid
Photolysis of nitrous acid generates hydroxyl radicals—a key atmospheric oxidant—in the lower atmosphere. Significant concentrations of nitrous acid have been reported in the rural atmospheric boundary layer during the day, where photolysis of nitrous acid accounts for up to 42% of sunlight-induced radical production1–7. The observed concentrations of nitrous acid are thought to be sustained by...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1977
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.50.2205