Results 311 to 320 of about 507,959 (341)
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Antiinflammatory activity of methionine, methionine sulfoxide and methionine sulfone
Agents and Actions, 1990The oxidation of methionine in peptides is often associated with the loss of biological activity. Since methionine showed good antiinflammatory activity, its oxidized products methionine sulfoxide and methionine sulfone were tested. The sulfone was more active than the sulfoxide although methionine was most active indicating that the antiinflammatory ...
Mazhuvancherry Kesavan Unnikrishnan +1 more
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Methionine or not methionine at the beginning of a protein
BioEssays, 1985AbstractMethionine aminopeptidases with a universal specificity have been revealed from the sequences of the amino‐terminal region of mutant forms of yeast iso‐1‐cytochrome c and from a systematic examination of the literature for amino‐terminal sequences formed at initiation sites.
Fred Sherman +2 more
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EcoSal Plus, 2006
This review focuses on the steps unique to methionine biosynthesis, namely the conversion of homoserine to methionine. The past decade has provided a wealth of information concerning the details of methionine metabolism and the review focuses on providing a comprehensive overview of the field, emphasizing more recent findings.
Elise R, Hondorp, Rowena G, Matthews
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This review focuses on the steps unique to methionine biosynthesis, namely the conversion of homoserine to methionine. The past decade has provided a wealth of information concerning the details of methionine metabolism and the review focuses on providing a comprehensive overview of the field, emphasizing more recent findings.
Elise R, Hondorp, Rowena G, Matthews
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The biosynthesis of methionine
Molecular and Cellular Biochemistry, 1973The methylation of the thiol group of homocysteine leading to methionine is a biochemical reaction of particular interest since it represents a crossroad of the action of two vitamins, folic acid and cobalamin, both in bacteria and in animals.
L. Jaenicke, H. Rüdiger
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[43] Interconversion of methionine and methionine sulfoxide
1977Publisher Summary The conversion of methionine to the corresponding sulfoxide residue in proteins has been used to study the influence of the former on the physicochemical and biological properties of proteins. The availability of procedures for regenerating methionine from the sulfoxide permits the verification of the specificity of the conversion ...
Angelo Fontana, Walter E. Savige
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The Quantitative Oxidation of Methionine to Methionine Sulfoxide by Peroxynitrite
Archives of Biochemistry and Biophysics, 2000Both peroxynitrous acid and peroxynitrite react with methionine, k(acid) = (1.7 +/- 0.1) x 10(3) M(-1) s(-1) and k(anion) = 8.6 +/- 0.2 M(-1) s(-1), respectively, and with N-acetylmethionine k(acid) = (2.8 +/- 0.1) x 10(3) M(-1) s(-1) and k(anion) = 10.0 +/- 0.1 M(-1) s(-1), respectively, to form sulfoxides.
Willem H. Koppenol, Daniel Perrin
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The Journal of Photographic Science, 1992
AbstractAmino acid analysis of a range of gelatins has been carried out using ion-exchange chromatography. Results are given for the methionine, methionine sulphoxide and methionine sulphone contents of a range of gelatins.
Li Xun, Peng Bi-Xian
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AbstractAmino acid analysis of a range of gelatins has been carried out using ion-exchange chromatography. Results are given for the methionine, methionine sulphoxide and methionine sulphone contents of a range of gelatins.
Li Xun, Peng Bi-Xian
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Nature, 1947
In 1944 Albanese, Frankston and Irby1 published their hydrogen peroxide – perchloric acid oxidation method for the estimation of methionine in protein hydrolysates and human urine. They stated: “… the applicability of the procedure to the urine was established by means of a study which demonstrated that the normal urinary constituents failed to react ...
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In 1944 Albanese, Frankston and Irby1 published their hydrogen peroxide – perchloric acid oxidation method for the estimation of methionine in protein hydrolysates and human urine. They stated: “… the applicability of the procedure to the urine was established by means of a study which demonstrated that the normal urinary constituents failed to react ...
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Current Opinion in Oncology, 2022
Purpose of review In this review, we summarize the biological roles of methionine, methionine adenosyl transferase 2A (MAT2A) and S-adenosyl methionine (SAM) in methylation reactions during tumorigenesis. Newly emerged inhibitors targeting the methionine−MAT2A−SAM axis will be discussed. Recent
Jiamin, Guo +3 more
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Purpose of review In this review, we summarize the biological roles of methionine, methionine adenosyl transferase 2A (MAT2A) and S-adenosyl methionine (SAM) in methylation reactions during tumorigenesis. Newly emerged inhibitors targeting the methionine−MAT2A−SAM axis will be discussed. Recent
Jiamin, Guo +3 more
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, 2019 Methionine (MET) is an essential α-amino acid which plays a role in several biochemical processes, such as biosynthesis of proteins.
Fabrizio Scopelliti +4 more
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