生物合成

The enzyme activity of LpsA2 was increased to 250% or above by 1 mmol/L Co2+, Hg2+ and Zn2+, respectively. The activity was also elevated to 110.7% and 138.0% by 15% dimethylformamide and dimethyl sulfoxide, and 352.7% and 189.7% by 0.1% and 1% Span-20, respectively. The enzymatic properties of LpsA2 from S. avermitilis were characterized that may provide the fundament to the screening of bio-engineered bacteria and the industrial applications in food processing and drug synthesis.

avermitilis的脂肪酶基因lpsA2进行了异源表达和酶学功能鉴定，不仅为脂肪酶的研究积累了更多数据，也为具有优良性能的脂肪酶生物工程菌的筛选奠定了基础，更为其在食品加工、药物合成等工业生产中的应用提供了依据。

In this thesis, the synthesis and its structure modification of bioactive stilbenes have been studied.

本论文研究了具有生物活性的芪类化合物的合成与结构修饰。

It is also an efficient and practical method for synthesis of bioactive peptides.

改进的硫酯法对于合成生物活性肽具有重要的应用前景。

Stereoselectivity is the key affecting whether a biocatalyst can be effectively applied to chiral synthesis.

立体选择性是生物催化剂能否有效地应用于手性合成的关键。

This is especially important for early-stage drug development where strict timelines usually impede the laborious and hence time-consuming process of biocatalyst discovery and optimization.

特别是在药物合成的初级阶段很重要，通常严格的反应时间是阻碍实验进展的主要原因，因此酶催化反应中的问题是生物催化剂的发现和优化。

The editor has collected recent findings on the synthesis, properties, and use of new kinds of sugar-based surfactants in medical and biophysical applications.

编辑收集了最近的调查结果的合成，性能，并使用新的种糖基表面活性剂在医学和生物物理应用。

It is involved in the synthesis of biotin.

它和生物素的合成有关。

So far the biotin is produced by chemical methods mainly.

但到目前为止，生物素的生产主要依赖于化学合成方法。

Alongside its role in energy production, Biotin enhances the synthesis of certain proteins.

除了在能源生产方面的作用，提高了生物素合成的某些蛋白质。

On the establishment of shielding immune cells avoid HIV viral antigens identified protein adsorption and the establishment of "biological trap" induce HIV models Summary : HIV is the human immunodeficiency virus caused AIDS virus, AIDS is not currently be fully human control, AIDS vaccine is being developed, but because the virus genetic diversity potential to change the topic of the complexity of this ban from the incidence of HIV spread T4 cells in the mechanisms by, proposed changes T4 lymphocyte surface protein CD4 receptors structure as to avoid HIV adsorption, and the establishment of "biological trap" booby HIV idea to try to turn on AIDS treatment to the conversion of protein structure and function, as well as synthetic direction.

提要：HIV即人类免疫缺陷病毒是引起AIDS的病毒，目前爱滋病还不能被人类完全控制，AIDS的疫苗也正在研制中，但是由于病毒多样性的遗传潜能，使这一课题变的很复杂，本文试从HIV侵染T4细胞导致发病的机理入手，提出改变T4淋巴细胞表面CD4受体蛋白构象以避免HIV吸附，并设置"生物陷阱"诱杀HIV的构想，试图把对爱滋病的治疗引向对蛋白质结构与功能转化以及合成的方向。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失