轉甲基作用 的英文怎麼說
中文拼音 [zhuǎnjiǎjīzuòyòng]
轉甲基作用
英文
transmethylation-
Other : the dyewood is known as the suppression histidine decarboxylase, the catecha phenol - o - methyl shift enzyme action
其它:染料木素有抑制組氨酸脫羧酶,兒茶酚- o -甲基轉移酶作用It was then cloned to the secreted vector - ppic9k and recombined successfully into the chromosome of pichia pastoris host strain - gsl 15 by electroporation
通過電轉化作用該基因片段被成功地整合至酵母cs115的染色體上,經過甲醇誘導之後,該基因得到了分泌表達。Methanol fuel cell is a new type of energy conversion equipment based on proton exchange membrane fuel cell. it has been received widespread attention because it directly use methanol as fuel in fuel cell. at the same time, it has wide application in the future
甲醇燃料電池是在質子交換膜燃料電池的基礎上發展起來的一種新型能量轉換裝置,由於直接將甲醇作為燃料電池的燃料,因而受到廣泛的關注,具有廣闊的應用前景,但是目前甲醇燃料電池的催化劑低的活性以及成本較高等問題限制了甲醇燃料電池的應用。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。With the existing condition, the bar waveguide on the lithium niobate wafer with liquid phase proton - exchanged method has been fabricated and the benzoic acid is used as the proton source. a series of research on the domain inversion in lithium niobate crystal with proton - exchanged method have been done. and then the operation and the process of domain inversion in lithium niobate crystal with proton - exchanged method has been used
實驗方面,利用實驗室現有條件,在鈮酸鋰晶片上以苯甲酸為質子源,用液相質子交換法製作了條形波導;對用質子交換法實現鈮酸鋰晶體疇反轉進行了一系列實驗研究,在此基礎上提出了質子交換法實現鈮酸鋰晶體疇反轉的工藝過程,實現了疇反轉並腐蝕得到了v型槽;設計製作了帶尾纖的電光相位調制器,最後進行封裝。Tecbios biodiesel process is based upon transesterification of vegetable oils and animal fat with methanol or ethanol in excess, in the presence of naoh or koh as catalyst
Tecbio公司的生物柴油工藝,主要是使用naoh或koh作為催化劑,對菜油和動物脂肪進行酯基轉移反應,制取甲醇或乙醇。The research on the effect of liquid - liquid transition of polyacrylate on crystallization - melting of pdms indicates that above the melting temperature of pdms, pdms is reinforced by a special mutual action between p - electron in carbonyl of polyacrylate and 3d orbit in si atom of pdms, while below the temperature, the pdms crystal is lessened, which can not completely remove the crystal of pdms. however, it is the crystallization behavior of pdms that results in its most segments relaxation being restrained
研究聚丙烯酸酯液一液轉變對聚二甲基硅氧烷結晶一熔融影響的結果表明:碳基碳原子上p電子與出原於中3d軌道相互作用,在聚h甲基硅氧烷熔融轉變溫度以上,對其有分子增強作用;在聚二甲基硅氧烷熔融轉變溫度以下,霎對其有降低結晶度的作用,但不能消除結晶現象。In bioconversion of a d - amino acid and its derivative, the substrate, 5 ' - monosubstituted hydantoin is firstly transferred into an intermediate, d - carbamyl amino acid by d - hydantoinase, and in turn into an optically active d - amino acid by either d - carbamoylase or chemical, nano2. nowadays, the bioconversion of d - amino acids has been industrialized by enzymes, so called one - step process
D -型氨基酸及其衍生物的生物轉化,經歷兩個反應歷程,首先是在海因酶的作用下,催化5 -單替代海因形成氨甲酰類氨基酸中間物,後者再在酶或化學的作用下,生成相應的光學活性氨基酸或其衍生物。A. niger m - l which was screened in our laboratory produced a strongly a - transglucosidase. in this paper, studies on the fermentation conditions, purification and characterization of a - transglucosidase and its necessary groups was carried out in this dissertation. the main reports were as following : the fermentation conditions in shaking flasks were investigated by the method of single - factor analysis, the suitable main medium was achieved : which contained 4 % a, 2 % b and 1 % g ; the a. niger m - l was inoculated into 100ml medium in flask, shaking in 33 c at 140r / min for four days, with initial ph6. 5 and 6 % inocula volume ; adding 0. 1 mmol / l methyl a - d - glucopyranoside had inductive effect on enzyme formation, the a - transglucosidase activity amounted to 296. 05u / ml
本研究以黑麴黴m - 1為出發菌株,對其-葡萄糖轉苷酶的產酶影響因素、純化、酶學性質以及必需基團進行系統的研究,結果如下:通過對影響黑麴黴m - 1產-葡萄糖轉苷酶的單因素分析,得液態發酵生產-葡萄糖轉苷酶的最適產酶條件為: 4 a , 2 b和1 g ;在33 ,起始ph值為6 . 5 ,轉速為140r min ,接種量為6 ,裝液量100ml條件下,發酵4 . 0d ,酶活力達296 . 05u ml ,添加0 . 1mmol l的酶作用底物甲基- - d -葡萄糖苷對產酶的誘導作用最大。3. the low dielectric silicate films were prepared by using poss sol - gel from hydrolyzation and condensation of y - methyl acryloyloxy propyl - triethoxysilane as template, and characterized by afm, bet and ellipsometer. a film with dielectric constant as low as 2. 7 was obtained
3 、利用- (甲基丙稀酰氧)丙基三甲氧基硅烷水解縮和得到的poss溶膠作為模板劑制備得到了低介電薄膜材料,討論了旋膜轉速對薄膜厚度的影響。分享友人