类酶

Immunohistochemistry results showed that the gray of PC12 cell cytoplasm appeared shallowing after HFS, suggesting that tyrosine hydroxylase activity decreased; The numbers of visible mitochondria in the cytoplasm, secretory granules, processes and synapse were decreased.

结果：相比对照组，HFS后PC12类神经细胞光镜下突起长度显著缩短，突起个数明显减少；酪氨酸羟化酶免疫组织化学结果显示HFS后PC12细胞胞质灰度降低，提示酪氨酸羟化酶代谢水平下降；电镜下可见胞质中的线粒体、分泌颗粒减少，突起和突触减少。

The research presented here is aimed at exploring the effect of DTT on the in vitro fibril formation of hen egg-white lysozymes with four disulfide bonds. In this work, we specifically addressed the effect of DTT concentration under different incubation temperatures on the hen lysozyme structure and fibril formation, the effect of addition of DTT at later time points on the amyloid fibrillization of hen lysozymes, and the effect of concentration ratio between reduced and oxidized forms of DTT on the fibril formation of lysozymes.

本研究以具有四对双硫键的母鸡蛋白溶菌酶为蛋白质模式系统，在含盐类之酸性溶液环境下诱导生成类淀粉纤维，再配合二硫代苏糖醇破坏溶菌酶中的双硫键，探讨：（1）不同温度下加入不同DTT浓度对溶菌酶类淀粉纤维形成之影响，（2）不同生长时期加入DTT对溶菌酶类淀粉纤维形成之影响，（3）不同比例之DTT和氧化态DTT浓度对溶菌酶类淀粉纤维形成之影响。

Protoporphyrinogen oxidase inhibiting herbicide is becoming a hot point of novel herbicide development because it inhibits the enzyme catalysing the synthesis of chlorophyl in plant cell, insures the different activity between plants and animals, and has the virtues of high effectivity, low toxicity and mezzo residue.

而原卟啉原氧化酶抑制剂类除草剂以植物细胞中催化叶绿素合成的酶为作用点，确保了动植物之间的选择毒性，具有高效、低毒、残效适中的特点，成为新型除草剂开发的热点。

Inhabition of NX0 and NX1 on the activities of fumaric reductase in tissue homogenate of cysticerci was tested. The results showed that the two kinds of benzimidazol carbamate drugs could inhabite the activity of fumaric reductase complex noncompetently.

测试了NX0和NX1对猪囊尾蚴组织匀浆延胡索酸还原酶活性的抑制作用，结果表明两种苯并咪唑氨基甲酸酯类药物非竞争性抑制延胡索酸还原酶复合体活性。

Industrial enzymes are usually mixtures of different enzymes. Commercial products are standardized with diluents.

工业类用酶通常是不同酶的混合物；商业产品是稀释后的标准制品。

AIM To investigate whether the human pro- lidase possesses the G-type organophosphate hydrolyzing enzyme activity besides its ability to catalyze the hydrolysis of the dipeptides bearing a proline residue at the C-terminus.

目的研究人氨酰基脯氨酸二肽酶除催化水解C端为脯氨酸残基的二肽外，是否还有G类有机磷化合物水解酶活性。

The usage of horse-radish peroxidase as catalyst i n organic synthesis,especially the progress in catalyzing the polymerization of an iline,derivatives of aniline,and phenol s were reviewed in this paper.

综述了辣根过氧化物酶在有机合成中作为催化剂使用，其催化机理为过氧化循环过程；以及辣根过氧化物酶催化合成苯胺、苯胺衍生物、酚类的研究进展，其特点为催化效率高。

Using in situ hybridization, we found that ribozyme transcripts were predominantly located in the nucleus of transgenic potatoes, consistent with the hypothesis that ribozymes were more efficient against nuclearly replicative viroid.

原位杂交结果表明核酶转录产物主要分布在转基因马铃薯细胞的细胞核中。这一结果支持我们提出的核酶对在核内复制的类病毒更为有效的假说。

The genes of hammerhead ribozymes targeted against two and three sites on negative strand of potato spindle tuber viroid were designed, synthesized and cloned according to the action manner of hammerhead ribozyme.

根据锤头型核酶的作用模式，设计、合成并克隆了特异切割马铃薯纺锤形块茎类病毒负链RNA不同区域位点的双价和三价锤头型核酶基因。

Meat tenderizer, for example, is no more than a protein-digesting enzyme, called papain, is derived form a tropical fruit, the papaya.

例如，嫩肉剂就是一种蛋白质分解酶，它能将坚韧的类纤维蛋白质转化为更小、更易吸收的蛋白质，这种被称为&木瓜蛋白酶&的酶取自于一种热带水果------木瓜。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。