Abrin is one of the potent toxins isolated from the beans of plant abrus precatorius.the toxic protein consists of two disulfide-bonded subunits,the a and b chains.the b chain is a galactose-specific lectin that facilitates the binding of abrin to the cell membrane that precedes endocytosis.after entering the cells,the a chain catalytically inactivates 60s ribosomal subunits by removing adenine position 4324 of 28s r–rna,and thereby inhibits protein biosynthesis.

相思子毒素是從豆科植物(abrus precatorius l欧美激情视频91。)種子中分離的一種細(xì)胞毒性蛋白亚洲区欧美性爱。它由a，b兩條鏈組成欧美A片123区，由一個(gè)二硫鍵相聯(lián)一级黄色视频无码A片，b鏈具有半乳糖凝集活性，可與細(xì)胞膜上受體結(jié)合国产一级毛片又粗又黄又硬，幫助a鏈進(jìn)入細(xì)胞內(nèi)日韩裸体自拍视频网站免费观看网址，a鏈進(jìn)入細(xì)胞催化失活60s核糖體亞基，從而使細(xì)胞蛋白合成被抑制免费在线黄视频播放。

Deuterium-labeling experiments indicate that the catalytically active species is ruthenium-π-alkyne rather than ruthenium vinylidene species.

Deuterium標(biāo)記實(shí)驗(yàn)表明日韩久久无码AV毛片，催化活性物種是釕-π-炔而不是釕偏物種。

The function of the addition of co-substrate ethanol was to in-situ regenerate NADH. A mathematical model was derived, in which, two substrates were catalytically reacted in sequence. The model was applied to the system involving the reduction of 2'-chloroacetophenone to R-2'-chloro-1-phenyl-ethanol by S.

深入研究了在乙醇存在下生物還原過(guò)程中酵母細(xì)胞內(nèi)NADH无毒国产水多视频在线、NAD〓久久亚洲精品无码福利播放、NADPH及NADP〓濃度的變化規(guī)律，發(fā)現(xiàn)胞內(nèi)NADPH濃度迅速降低到零国产白嫩在线观看视频，而NADH濃度始終維持在較高水平乱伦网站97，證明了用于底物還原反應(yīng)的輔酶是NADH，輔助底物乙醇的加入有利于實(shí)現(xiàn)輔酶Ⅰ的原位再生欧美三级片又粗又长。

A holoenzyme is the catalytically active form of the enzyme with its cofactor,whereas an apoenzyme is the protein part on its own.

全酶是酶與輔助因子一起形成的催化活性形式99re视频这里只有精品在，而輔基酶本身的蛋白質(zhì)部分色综合精品一区二区三区。

The waste gas produced in polyester production is first made to pass through adsorption homogenizer containing water and then catalytically combusting treated.

本發(fā)明將聚酯生產(chǎn)過(guò)程產(chǎn)生的廢氣首先經(jīng)過(guò)裝有水的吸收均化器，然后進(jìn)行催化燃燒處理人人爱人人摸2020人人操。

The results indicated that β-ionone was catalytically oxidized to 5,6-epoxy-β-ionone, 4-oxo-β-ionone, 4-hydroxy-β-ionone, and a little dihydroactinidiolide.

結(jié)果表明国产1在线观看，催化劑的催化性能與擔(dān)載金的顆粒大小密切相關(guān)，同時(shí)溶劑的性質(zhì)也對(duì)反應(yīng)有明顯影響亚洲人妻性爱片。

We have been interested in design and synthesis of macrocyclic lanthanide complexes which are capable of catalytically hydrolyzing phosphodiester bonds. Because of their high thermodynamics stability, low kinetics lability, high coordination numbers, and charge density, macrocyclic lanthanide complexes will be suitable as artificial nucleases.

合成設(shè)計(jì)能促進(jìn)磷酸酯鍵水解的金屬錯(cuò)合物欧美激情一区二区三区，一直是我們實(shí)驗(yàn)室很感興趣的研究領(lǐng)域，尤其是以鑭系金屬離子大環(huán)配位子錯(cuò)合物這方面的研究日韩欧美色色色，因其具有高度的熱力學(xué)穩(wěn)定日本黃色A片三級三級三級免费看、動(dòng)力學(xué)穩(wěn)定、高配位數(shù)及電子密度等特性黄色一级毛片在线观看，使得鑭系金屬大環(huán)錯(cuò)合物非常適合作為人造水解酶爽爽爽无码a片在线观看。

RESULTS: Two kinds of SSAOs had been obtained, which were catalytically active with methylamine as substrate.

結(jié)果：從兔血漿蛋白中分離得到兩個(gè)具有SSAO酶活性的蛋白組分A和B。

RESULTS: Two fractions of plasma obtained were catalytically active with methylamine as substrate.

以甲胺為底物幸福宝网站最新入口，未處理的血漿SSAO的酶動(dòng)力學(xué)參數(shù)Km=(1.83±0.13)mmol/La片一级视频，Vmax=(0.12±0.003) nmol/。

Air-segmented ; flow injection ; natural waters ; catalytically kinetic spectrophotometry ; vanadium

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