methylation 中文意思是什麼

methylation 解釋
甲基化酌
  1. In addition, it was also found that this protein shares limited but significant homology with the sam - dependent methyltransferase of mesorhizobium sp. bnc1 ( 32 % similarity ), and the similarity of its 303 - 362 region to the 160 - 220 domains of l11 methyltransferases of e. coli ( prma ) is 41 %. it is suggested that methylation of l11 resulted in effects of noea on nodulation of 042bm

    發現noea與中慢生根瘤菌（ mesorhizobiumsp . ） bnc1可能的sam -依賴性的甲基轉移酶相似性為32 ，而其303 - 362區域與大腸桿菌（ escherichiacoli ）的核糖體50s亞基的l11蛋白甲基轉移酶（ prma ）的160 - 220結構域的相似性達到41 。
  2. Kzsm - 5 zeolite ; toluene ; methane ; oxidative methylation

    Kzsm - 5沸石甲苯甲烷氧化甲基化
  3. Researchers looked for - and found - a chemical change called dna methylation in healthy tissue adjacent to breast tumors

    研究者尋找並發現了靠近腫瘤組織的健康組織中有「 dna甲基化」這種化學改變。
  4. When chlorotrimethylsilane is added to ( 2 - amino - primidin - 5 - yl ) - methanol derivatives, the methylation would be found. it is a strange reaction which is first reported

    氨基5 -羥甲基嘧啶衍生物用三甲基氯硅烷在乙氰溶劑中迴流會發生醇的甲基化反應，該現象尚屬首次發現。
  5. Epigenetic modification of the genome ensures proper gene activation during development and involves : genome methylation changes ; the assembly of histon and histone variants into nucleosomes and remodeling of other chromatin - associated proteins such as linker histones, polycomb group, nuclear scaffold protein, and transcription factors

    這些染色質的再程序化包括dna的甲基化和核小體組蛋白的乙酰化等。組蛋白乙酰化在染色質結構調節、 dna復制、基因轉錄、細胞分化及癌細胞發育都有研究，但在克隆動物中卻是一個有待深入探索的領域。
  6. Binders for paints and varnishes - methylation and silylation of fatty acids and analysis by gas chromatography

    塗料和清漆用粘合劑.脂肪酸的甲基化和硅烷化及氣相色
  7. Focus on the bioinformatics analysis of dna methylation

    主要研究dna甲基化的生物信息學分析。
  8. Dna methylation and cell differentiation

    甲基化與細胞分化
  9. As expected, tumor cells showed the highest methylation leels

    如所預料的一樣，腫瘤細胞呈高度甲基化。
  10. Plz107 then was transformed into methylation - deficient e. coli et12567

    轉化甲基化缺陷型大腸桿菌et12567 。
  11. Lrp15 gene promoter region methylation and its expression in acute leukemia

    15基因啟動子區甲基化及其表達分析
  12. I have used low copy pbin19 and single copy pmw755i5j binary vectors as backbone plasmids, to create a gene targeting insertion vector designated gfp tnos. after agro - infiltration into transgenic nicotiana benthamiana 16c, progeny were analyzed genetically for phenotypic changes, sirna accumulation, and dna methylation

    採用農桿菌浸潤法（ agro - infiltration ）感染轉基因本生煙16c ，並對同源基因瞬時表達所引起的植物表型變化、小分子rna的產生、 dna甲基化程度、以及相關性狀在後代中的遺傳情況進行了檢查。
  13. Alterations in dna methylation, an important regulator of gene transcription, lead to cancer

    對調節基因轉錄起重要作用的dna甲基化的異常將導致癌癥的發生。
  14. Scientists finally understand methylation well enough to map out vulnerable areas at a national level, according to krabbenhoft, who is currently working on such a map for the epa

    克萊本霍夫特說，科學家對于甲基化的了解，終于足以繪制出全美容易遭到污染的地區。
  15. In combination with the characteristics of the molecular structure of carbazole, a possible genetic mechanism of dmcs is proposed : l, x - dmcs may be derived from 1 - methylcarbazole by methylation. the methylation at the cyclocarbon positions 3 and 6, with equal chemical reaction activity, would result in equal products ; at the same time, competitive methylations would occur between cyclocarbon positions 3, 6 vs 4, 5 ; different conditions of reactions will result in different preferences of 1, 3 - + 1, 6 - dmc or 1, 4 - + 1, 5 - dmc

    結合咔唑分子結構分析，首次提出二甲基咔唑的一種甲基化作用形成機理： 1 ， x -二甲基咔唑由1 -甲基咔唑經甲基化作用演化形成；等化學反應活性的環碳3與6位上的甲基化作用理應獲得相等的產物。
  16. Tumor - suppressor genes normally protect cells from becoming cancerous, but the gradual silencing of these genes by abnormal methylation is thought to be an early change in cancer deelopment

    抑癌基因通常是阻止細胞腫瘤化，隨著這些基因不正常的甲基化，他們就開始沉默，這被視為腫瘤的早期改變。
  17. The degree of methylation was lower than in the tumor cells, but it was 1. 75 times higher than in control cells

    此水平比腫瘤細胞的要低，但卻比對照細胞高出1 . 75倍。
  18. Methylation status of perforin gene promoter in t cells of patients with systemic lupus erythematosus

    淋巴細胞穿孔素基因啟動子區域甲基化狀態的探索
  19. The effects of nabr loading, reaction temperature and contact time on the catalytic behaviors of nabr - promoted kzsm - 5 zeolite for the oxidative methylation of toluene were investigated systematically. it was found that the kzsm - 5 zeolite catalyst promoted with proper nabr loading was a very effective catalyst for the omt. the optimum conditions for the omt were found. the structure of catalysts have been characterized by xrd and framework ir. it was found that kzsm - 5 zeolite exhibited excellent catalytic activity for the omt and heat stability

    化合物的選擇性及st eb值等方面的影響進行了系統的考察，發現nabr kzsm - 5催化劑對omt反應活性較高，適當的nabr負載量能提高omt反應活性，並能獲得苯乙烯含量很高的c
  20. By contrast, l - methionine increased the level of methylation and thus reduced the expression of the gene in animals with loving mothers, and led to fear, anxiety and a heightened response to stress

    與之相反， l -甲硫氨酸增加了甲基化水平，從而減弱了正常老鼠中糖皮質激素受體基因的表達，導致了恐懼、焦慮和對壓力的強烈反應。
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