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31, Petrossian, T. Clarke, S. Methylation of DNA, protein, and even RNA species are integral processes in epigenesis.

32, The genomic DNA methylation tends to repress gene expression while demethylation or hypomethylation activates the gene expression.

33, It take for S-adenosylmethionine as methyl donor. DNA methylation has essential roles in many plant life processes.

34, Mercury methylation by microbes plays a key role in mercury biogeochemical cycle, and closely related with public health.

35, DNA methylation and its aberrance play an important role in the human development and tumorigenesis.

36, Using strain C514 as experimental strain, the factors that influenced C5-O methylation of avermectins were studied.

37, Core processes of epigenetic inheritance include DNA methylation, histone modification, nucleosome remodeling, nuclear dynamics and chromatin interaction with non-coding RNAs.

38, In addition, methylation and methyl rearrangement of arenes were mainly controlled by the abundance, source and evolution degree of soluble organic matter.

39, DNA methylation is an important epigenetic modification which regulates a number of biological processes.

40, Wetland has high Hg accumulation rate and methylation capacity. In wetland, redox condition and abundant organic carbon are favorable to methylation of Hg.

41, Chemical modification of PC-3 by periodate oxidation, partial acid hydrolysis, methylation, sulfation, PC-3 and its derivation were tested for anti-virus activities against Coxsackis B5.

42, Method 1,3,5-trimethylbenzene was selected as the start material. The final product was obtained in five steps, including two steps bromination, cyanidation, methylation and N-alkylation.

43, The analysis of DNA methylation in plasma applicate to noninvasive prenatal diagnosis.

44, Aim: To detect the methylation at the promoter P3 of human insulin-like growth factor II (IGF-II) gene in hepatocellular carcinoma.

45, The information in this study is important for its extensive utility in gene feature analysis and epigenomics including gene prediction and methylation chip design in different genomes.

46, We present here a database for DNA methylation data that attempts to unify these results in a common resource.

47, Oxidative methylation of toluol to styrene is a new process studied widely recently.

48, DNA methylation has also been found in premalignant lesions such as prostatic intraepithelial neoplasia[sentencedict.com/methylation.html], but to a less extent compared with that in prostate cancer.

49, With this new set of tools, Luger and her colleagues did x-ray crystallographic and biophysical studies to see how methylation affects the structure of chromatin and nucleosomes.

50, Procaryotic M enzymes as model molecule play an important role in studying mechanism of methylation and demethylation.

51, Methods: Simvastatin was synthesized from lovastatin via several steps involving acetylization, methylation , hydrolytic decomposition and cyclization reactions.

52, Methoxyphenyl acetonitrile was synthesized from(4hydroxyphenyl)acetamide through methylation and dehydration. The total yield reached 76.5% and the purity 99.5%.

53, The 3,4,5 trimethoxybenzaldehyde is synthesized from p cresol in four steps of bromination, hydrolyzation, methoxylation, and methylation, with an overall yield of 53.

54, Researchers looked for - and found - a chemical change called DNA methylation in healthy tissue adjacent to breast tumors.

55, This article briefly discusses plant DNA methyltransferase, the mode and the loci of Methylation and the epigenetic phenomenon originated by DNA methylation.

56, METHODS Phase-transfer catalytic methylation and suitable method of aftertreatment were used. RESULTS The yield and content was both improved.

57, Methods: The target compounds were synthesized by methylation and acetylation, iodomethane as methylated reagent, acetic anhydride as acylated reagent.

58, In the 2-4 hour, the increasing speed of methylate shoot up and exceeded the level of demethylation. In the 4-16 hour, the level of methylation went to stable and kept on the higher level.

59, DNA methylation has a number of epigenetic functions, but the scientific interest has recently focused on the gene silencing effect methylation can have in eucaryotic cells.

60, METHOD: 1 Deoxy D ribose was prepared from D ribose via methylation, silylation, reductive cleavage and hydrolysis by a sequence of four high yield reactions.