查询词典 enzyme

Objective To evaluate the screening value of the dipstick dye immunoassay and enzyme-linked immunosorbent assay for schistosomiasis diagnosis in the field.

目的评价胶体染料试纸条法和酶联免疫吸附试验两种试剂盒在血吸虫病现场防治中的筛查价值。

Soil microbial biomass and activities of invertase and urease all tended to decrease after pot-culture experiment, while the correlations between these biochemical properties and field ages were similar to those before this experiment, suggesting that rice cultivation without fertilization consumed part of soil microbial biomass, decreased soil enzyme activities correlated with C and N transformation, and affected soil nutrients status disadvantageously.

温室盆栽试验之后，水稻土的微生物生物量及酶活性与利用年限之间的关系规律和种植水稻之前基本一致，且整体上又趋于下降，即无施肥条件下种植水稻转化利用了土壤部分微生物生物量，并减弱了与碳氮转化相关酶的活性，对保持水稻土的营养水平造成不利影响。

The probe connects rhodamine with artifical enzyme complex, and utilizes the conformational change of SOD active center during the dismutation of superoxide anion to realize the change of the fluorescent intensity of fluorophore.

过程中出现的活性部位结构变化实现荧光团的荧光强度变化，以期实现对O2-。

Superoxide Dismutases are ubiquitously expressed antioxidant enzyme in aerobic organisms and catalyze dismutation of superoxide anion to hydrogen and molecular oxygen,the first step in active oxygen-scavenging systems.

超氧化物歧化酶(superoxide dismutase，SOD)在需氧原核生物和真核生物中广泛存在，是活性氧清除系统中第一个发挥作用的抗氧化酶。

Since the dismutation of superoxide radicals by SOD is a reaction that is rate-limited by diffusion and enhanced by electrostatic guidance, all these structural features may be related to GP-MnSOD's high catalytic activity: first, Lys38 may increase the effective enzyme-substrate association rate by enhancing the electrostatic gradient at its substrate channel; second, an excess of acidic over basic residues makes the negative surface potential of GP-MnSOD more larger than those of other known MnSODs. This may enhance the reaction rate by reducing futile collisions of superoxide radicals with GP-MnSOD's surface.

因此，GP-MnSOD的上述结构特征可能与GP-MnSOD的较高酶活有关：首先，Lys38增加了底物通道口的正静电势梯度，从而可能促进了GP-MnSOD的活性中心与底物的有效结合速率；其次，GP-MnSOD表面覆盖的过量酸性残基使得它比其它MnSOD在底物通道以外的蛋白表面更多地被负静电势所覆盖，这可能有效地减少了超氧阴离子与GP-MnSOD表面的无效碰撞，从而提高了反应速率。

Superoxide dismutase (EC 1.15.1.1;SOD) is a metal-containing enzyme that widely exist in organisms. It catalyzes the dismutation of superoxide free radical and produces hydrogen peroxide and oxygen.It plays an important role in protecting the plasmalemma from the reactive oxygen species.A recombinant plasmid pPICZA-sodM18 was constructed and after its linearization was transferred into chromosome of Pichia pastoris GS115 by electroporation.

超氧化物歧化酶(Superoxide dismutase；EC 1.15.1.1；SOD)是广泛存在于生物体内的金属酶，是机体内唯一以超氧阴离子自由基(O_2~-)为底物的酶，它能专一地催化O_2~-的歧化反应，生成过氧化氢和氧气，能有效的抵御氧自由基和其他氧化物自由基对细胞质膜的毒性，对机体防御氧化损伤起着十分重要的作用。

33 Holstein cows and 29 Tibet-sheep were chosen to study the alkaline phosphatase activity and its enzyme retention in different period of pregnancy with disodium phenyl phosphate method.

方法］采用磷酸苯二钠法，对33头荷斯坦奶牛和29只藏系绵羊不同怀孕期血清碱性磷酸酶活性及其酶保存率进行了测定。

Preliminary standard reference spectra for the unliganded enzyme and for the spectral changes induced by sodium dithionite and succinate were obtained. The wavelength and intensity of the UV signal observed in agreement with results of ox-reduced state of heme b.

其次我们使用不同还原剂succinate、Na2S2SO3分别处理两种纯度的样品，通过分光光度计检测细胞色素b的氧化还原状态，观测到了不同还原剂影响下的细胞色素b的特征光谱。

Its mechanism might be related with the inhibition of DLE on the decrease of antioxidant enzyme activities and the anti-radicals activity.

其作用机理可能与DLE抑制抗氧化酶活性降低和抗自由基活性有关。

The orthogonal test of removing protein with pawpaw proteinase analysed by difference demonstrates: the sequence of the ponderance affecting doffing protein from high to low is the treating temperature, enzyme quantity, the treating time and the pH value.

经木瓜蛋白酶正交试验极差分析，影响因素从大到小排列顺序依次为：温度、酶量、处理时间、 pH 值，最佳处理条件为温度50℃、酶用量为2%、酶解2h 、 pH 为6.0，又脱去剩余蛋白的80.2%，蛋白质浓度降到0.4mg/mL 。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。