类酶

In the lever of isozyme,10 species of Melampsora larici-populina are divided into four groups:the first includes Nm ,GL, H159,CJQ and ZST ;the second is Qh and Bqy, the third is Scb and Ts, Tt is included in the forth group.

在同功酶水平上落叶松-杨栅锈菌主要分为以下四大类：Nm、GL、H159，CJQ和ZST为第一类； Qh和Bqy为第二类；Scb和Ts为第三类；Tt为第四类。

In the reasonable drug molecular design,analyzing the conformations of the substrate without three-dimension structure and confirming its active conformation are very important to illustrate the spatial shape and active site of target enzyme. The active conformation of protoporphyrinogen IX substrate of protoporphyrinogen oxidase has been established using the Distance Comparisons DISCO method. In this paper, four different conformational molecules of Protogen IX and crystal molecule of diphenylethersAF are analyzed by comparing their geometry parameters. The results show the lower energy active conformation from the DISCO model is more reasonable.

在合理药物设计方法中，当靶标酶的三维结构未知时，对其底物进行构象分析，特别是确定其活性构象，对阐明靶标酶活性中心的空间形状和作用位点具有十分重要的意义我们曾利用距离比较法确定了原卟啉原氧化酶的底物—原卟啉原IX的活性构象，本文从构象分析的角度对4种不同构象的原卟啉原IX分子与二苯醚类分子的晶体学构象进行了几何参数的比较和分析，结果进一步证实了距离比较法所确定的活性构象更为可靠

By now, there is seldom report on the Heilongjiangwood frog which hibernates at low temperature condition. Our study mainly analyze theadaptation changes of liver proteins, SOD, LDH, G6PDH and EST activities of Heilongjiangwood frog under low temperature.

本文旨在研究低温条件下黑龙江林蛙肝脏蛋白质、超氧化物歧化酶、乳酸脱氢酶、葡萄糖6-磷酸脱氢酶(G6PDH)及酯酶的适应性变化，以探讨黑龙江林蛙冬眠期低温耐受的机制，为两栖类低温生物学和比较生理学的深入研究提供理论参考和实验依据。

The effects of lipase dosage, pH, hydrolysis time and temperature on the foaming properties of egg albumen powder were researched. Results indicated that the optimal hydrolysis conditions were lipase dosage 5000 U/g, pH value 8.0, hydrolysis time 6 h and temperature 42℃.

试验考察了酶添加量、pH值、水解时间、水解温度对蛋清粉起泡性能的影响，确定了脂肪酶水解脂类的较适条件为酶添加量5000 U/g，pH值8.0，水解时间6 h，水解温度42℃。

Objective To study the effect of high pressure alone or combined with heating treatment of fresh pear juice on PPO activity in it.

水果中的多酚氧化酶催化酚类物质在有氧气的条件下生成褐色物质称为酶促褐变，鲜榨梨汁生产的一大难题是防止酶促褐变。

Clausenamide had no obvious effect on monoamine oxidase B activity using HPLC-UV detector, indicating that increment of monoamines may involves another mechanism of action.

体外使用HPLC紫外检测法测单胺氧化酶B发现，黄皮酰胺对单胺氧化酶B无明显影响，提示黄皮酰胺增加单胺类递质并非由于抑制单胺氧化酶B引起。

Part one (chapter 1~4) is about the coppermediated biomimetic oxidation of naphthols and 2-naphthylamine.

中文题名氧化还原酶模型及在仿生有机合成中的应用副题名外文题名 The model of oxidoreductases and its application in biomimetic organic synthesis 论文作者谭端明导师许遵乐教授学科专业有机化学研究领域\研究方向学位级别博士学位授予单位中山大学学位授予日期2002 论文页码总数172页关键词模拟酶氧化还原酶仿生氧化铜胺络合物抗肿瘤药物馆藏号BSLW /2003 /O629 /5 本文包括两部分内容：第一部分（1~4章）为萘酚类和2-萘胺化合物在含铜化合物作用下的仿生氧化偶合反应研究。

The genes of hammerhead ribozymes targeting 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。通过体外转录，将PSTVd负链RNA分别与双价和三价核酶混合，37℃温育 2h。

The objective of this work is to study the characterization of immobilized polyphenol oxidase from banana leaves and its application on the transformation of phenolic compounds. Polyphenol oxidases of banana leaves from a variety of sources were compared. Among them, PPO from Giant cavedishii leaves showed the highest specific activity (315 units/mg).

摘要 本研究目的在探讨固定化香蕉叶多酚氧化酶之特性及於酚类化合物转化之应用，首先探讨不同品种香蕉叶多酚氧化酶并比较不同之固定化方法，结果以北蕉的单酚酶比活性最高315，活性约为其他品种之2-20倍。

The identity of the gene encoding the mitochondrial K-activated acetaldehyde dehydrogenase K(+-ACDH of Saccharomyces cerevisiae has been confirmed. The gene is situated on the right arm of chromosome XV, bears the systematic name YOR374w and the deduced product shows significant homology to other members of the S.

中文摘要酵母菌醛类去氢酶4（YOR374w）是一种位在粒线体内的去氢酶，需要钾离子的活化，以及NAD+或NADP+当辅酶，在乙醇的代谢途径扮演很重要的角色，尤其是以乙醇当碳源的环境下。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。