查询词典 enzyme

Chalcone synthase (CHS, EC 2. 3.1. 74), is the first key enzyme in the biosynthesis of plant flavonoids, and the key enzyme of plant secondary metabolism. It has great influence on plant physiological function.

查尔酮合成酶(chalcone synthase，CHS，EC 2.3.1.74)，是植物类黄酮物质合成途径中的第一个酶，也是植物次生代谢途径中的关键酶之一，对植物具有非常重要的生理意义。

The relationship between enzyme activity and fertility of soil in Cucumis greenhouse was studied, we attempted to use the enzyme activity of soil as an index to evaluate the fertility of soil in cucumis greenhouse.

研究了黄瓜大棚土壤酶活性与土壤肥力的关系，试图探索是否可以利用土壤酶活性作为评价大棚蔬菜土壤肥力的指标。

By n-butanol extraction, ammonium sulfate fractionation and sodium chloride dialyzation, the partially purified enzyme was gained by means of gel filtration on sephadex G-150 column, and some properties of the enzyme were determined.

方法］以DFRKN-1为提酶材料，经正丁醇提取，硫酸按分级沉淀分离，透析获得酶的粗提取液，用SephadexG-150凝胶过滤柱层析纯化，获得纯化碱性磷酸酶，并测定纯化碱性磷酸酶的理化性质。

Furoic acid was synthesied by catalytic oxidation in the mimic enzyme microreactor, which was constructed by strong stirring a non homogeneous phase system of organic reagent and water using β cyclodextrin derivative as an imitating enzyme. This method is easy to handle and more effective than the corresponding reaction in homogeneous phase.

在水与有机试剂组成的非均相体系中，用β环糊精(β cyclodextrin ，缩写：β CD)衍生物模拟生物酶，以强力搅拌下分散在有机溶剂中的小水珠作为微型反应器进行糠醛催化氧化为糠酸的反应，停止搅拌后体系立即分层，产物在有机相，残留的原料和模拟酶在水相。

Furoic acid was synthesied by catalytic oxidation in the mimic enzyme microreactor, which was constructed by strong stirring a non homogeneous phase system of organic reagent and water using β cyclodextrin derivative as an imitating enzyme.

在水与有机试剂组成的非均相体系中，用β环糊精(β cyclodextrin ，缩写：β CD)衍生物模拟生物酶，以强力搅拌下分散在有机溶剂中的小水珠作为微型反应器进行糠醛催化氧化为糠酸的反应，停止搅拌后体系立即分层，产物在有机相，残留的原料和模拟酶在水相。

The technics of producing membrance for glucose and sucrose detecting were optimized. The best condition is: adding fragmentation liquid of the yeast which is breaked up in 450 times for three times, betaking mix enzyme which is prepared with 0.0036g glucose oxidase and 0.5ml kluyveromyces lactis β-galactosidase and 1.5ml distilled water, immobilizing mix enzyme through 2% glutaric dialdehyde for 1 hour.

优化了葡萄糖和蔗糖酶膜制作的工艺条件，结果表明，在以下条件：3层破碎液次数450次的破碎液，浓度配比为0.0036g葡萄糖氧化酶和0.5ml半乳糖苷酶用1.5ml蒸馏水溶解的混合酶液，固定混合酶的戊二醛浓度为2%，时间为1小时，酶的固定效果最为理想。

The effects of active molecule and repressive molecule on the binding process of allosteric enzyme and substrate are discussed by considering the heterotropic effect of the regulating molecule that binds to allosteric enzyme.

文摘：考虑调节剂结合别构酶的异位效应，讨论了与别构部位结合的活性剂分子和抑制剂分子对别构酶和底物结合过程的影响以及它们对协同性效应和抗协同性效应的影响。

Methods The target cDNA was amplified by PCR and PCR products were indigested by restriction enzyme Nco Ⅰ and Hind Ⅲ. Then the indigested products were recombined into pET-BBH and pET-BBH was expressed in E. coli BL21 (DE3) by IPTG inducing. Next, the expressed proteins were identified by SDS-PAGE, western blot and enzyme activity test. Finally, fluorescence quantitative PCR was used to test its expression quantity in different worm stages.

PCR扩增GAMMA-BBH cDNA基因，产物经NcoⅠ和HindⅢ限制性内切酶酶切后连接至原核表达载体重组为pET-BBH，在BL21(DE3)中用IPTG诱导表达，SDS-PAGE、Western blot和酶活性测定鉴定表达产物，用荧光定量PCR方法检测广州管圆线虫不同虫龄GAMMA-BBH的表达量。

Methods The virus titer in culture fluid was measured by enzyme-linked immunosorbent assay.The HTNV-antigen in MsC was detected by indirected immunofluoresence assay and enzyme immunoassay.The shape and ultrastructure of infected MsC were observed by light microscope and transmission electron microscopy respectively.

采用免疫标记技术和电镜技术观察HTNV-A9株对人胚肾小球系膜细胞的感染情况和病毒唑、磷甲酸钠对病毒感染的抑制作用。

The relation between accessibility of amino acids and the property of enzyme was discussed, and the relation between accessibility of amino acids and the isoelectronic point of enzyme was studied.

酶总是在一个特定的pH范围内发挥功能。酸碱性质是它的一个重要的理化性质，等电点是它的一个重要的参数，研究它有利于更好的认识酶的功能。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。