Preliminary characterization of S-adenosylmethionine: tocopherol methyltransferase from chloroplasts of Calendula officinalis seedlings.
نویسندگان
چکیده
منابع مشابه
Calendula officinalis
Calendula ,native to southwestern Asia, western Europe, Macaronesia, and the Mediterranean, is an annual and perennial herbaceous plants belongs to family Asteraceae . The aim of this study is to overview its pharmacological effects. This review article was carried out by searching studies in PubMed, Medline, Web of Science, and IranMedex databases up to 2016.totally, of 119 found articles, 40 ...
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Background The efficiency and safety of the thiopurine therapy rely on the concentration of patient's cytotoxic thioguanine nucleotides (TGN), which in turn depend on the deactivation of thiopurine drugs by thiopurine S-methyltransferase (TPMT). The activity of TPMT largely depends on the presence of genetic polymorphisms. Determination of mutations in the TPMT gene before starting 6-mercaptopu...
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Methylation is a major biological process. It has been shown to be important in formation of compounds such as phosphatidylcholine, creatine, and many others and also participates in epigenetic effects through methylation of histones and DNA. The donor of methyl groups for almost all cellular methylation reactions is S-adenosylmethionine. It seems that the level of S-adenosylmethionine must be ...
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S-Adenosylmethionine-homocysteine methyltransferase, which catalyzes synthesis of methionine from homocysteine, with the use of S-adenosylmethionine as the methyl donor, is absent in tumor tissue such as rat ascites hepatoma and Morris hepatoma but is present in rat liver homogenate. Absence of the enzymatic activity in tumor cells is not due to the action of an inhibitor. S-Adenosylhomocystein...
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ژورنال
عنوان ژورنال: Acta Biochimica Polonica
سال: 1993
ISSN: 1734-154X,0001-527X
DOI: 10.18388/abp.1993_4864