当一种叫淀粉样前体蛋白（APP）的分子被两种酶——分别叫作贝塔-分泌酶和伽玛-分泌酶——切断时就形成了淀粉样斑块。
Amyloid plaques form when a molecule called amyloid precursor protein (APP) is chopped up by two enzymes known as beta-secretase and gamma-secretase.
单健的多酞，是胰岛素的前体，通过酶的作用变成胰岛素。
A single-chain polypeptide that is the precursor of insulin, converted into insulin by enzymatic action.
利用猪肉酶解物作为前体反应物进行热反应生产猪肉香精，明显提高香精的香气强度和香气逼真性。
Using proteinase hydrolysates of pork as the precursor to produce pork flavor by thermal reaction can obviously enhance the fragrance intensity arid similarity.
考察了添加诱导子和紫杉醇合成前体物对红豆杉细胞的生长和脱氢酶活力的影响。
The effect of elicitor and other precursors for the synthesis of taxol on both the growth and activity of dehydrogenase of yew cells was studied.
文章通过实验确定了有利于生物酶精练的最佳等离子体处理条件，并对等离子体与生物酶联合精练漂白的前处理工艺进行了讨论。
Theoptimal conditions for plasma treatment that is beneficial to bio-enzyme scouring are discussed in the article and the pre-treatment process based on this combined method is introduced.
结果0 .2 5 %、0 .2 %胰蛋白酶溶液处理的晶状体前囊，晶状体上皮细胞可以完全脱落。
Results 0.25%? 0.2% trypsin can clean up lens epithelial cells from anterior capsules totally.
在此过程中，需要线粒体外膜和内膜的蛋白质运输机器（至少三种主要的移位酶 复合物）来保证前体蛋白质的正确运输。
In this process, protein translocation machineries of the outer and inner membranes, at least three major translocase complexes, are needed to ensure the proper import of precursor proteins.
β-葡萄糖苷酶是分解和释放葡萄汁和葡萄酒中无香气的香气前体物的关键酶类。
Glucosidases is one of the key enzymes, which plays an important role in hydrolysising flavour precursors from grape juices or wines.
目的紫穗槐- 4,11 -二烯合酶是青蒿素生物合成途径中的关键酶，紫穗槐- 4,11 -二烯是青蒿素生物合成的前体。
OBJECTIVE amorpha-4, 11-diene synthase is the key enzyme of artemisinin biosynthesis, amorpha-4, 11-diene is the precursor of artemisinin biosynthesis.
目的紫穗槐- 4,11 -二烯合酶是青蒿素生物合成途径中的关键酶，紫穗槐- 4,11 -二烯是青蒿素生物合成的前体。
OBJECTIVE amorpha-4, 11-diene synthase is the key enzyme of artemisinin biosynthesis, amorpha-4, 11-diene is the precursor of artemisinin biosynthesis.
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