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Study on the Crystallization Process of Labeled GL-7-ACA Acylase CA130 Complex 7β-bromoacetyl amino cephalosporanic acid (BA-7-ACA), an analog of glutaryl-7-amino cephalosporanic acid (GL-7-ACA), can inhibit and specifically alkylate GL-7-ACA acylase (CA130) from Pseudomonas sp. 130, forming a carbon-carbon bond between BA-7-ACA and the C-2 on indole ring of Trp-β4 residue of CA130.Here we reported that BA-7-ACA labeled CA130 (BA-C130) could self-catalyze the hydrolysis of BA-7-ACA during crystallization process. The hydrolysis was confirmed to be a reaction analogous to the one of GL-7-ACA by comparative MALDI-TOF (matrix-assisted laser desorption/ionization-time of flight) spectrometry analysis.

二、GL-7-AcA酰化酶CA130标记复合物的结晶过程研究溴乙酰氨基头孢烷酸（7β-bromoacetyl amino cephalosporanic acid，BA-7-ACA）作为戊二酰-7-氨基头孢烷酸（GL-7-ACA）的类似物，不仅能够抑制GL-7-ACA酰化酶CA130的活力，而且能通过在BA-7-ACA和CA130的β亚基第四位色氨酸吲哚环二位碳原子之间形成碳-碳共价键而将CA130特异的烷基化。

This paper is concerned with a study report on the pesticide residue left over by the Allium tuberosum.

韭菜是中国消费者比较喜爱的一种蔬菜，其食用安全性关系到消费者的身体健康。

The red mud is a industrial waste residue in the process of aluminum oxide refinery.

赤泥是用铝土矿提炼氧化铝过程中产生的一种废弃物，化学成分极其复杂。

There was only one amino acid residue difference between them.

在氨基酸序列上仅有一个氨基酸的差异。

What happens to the unbranched glucose residue s in amylopectin during the methylation and hydrolysis procedure?

在甲基化和水解过程中不分支的葡萄糖残基会发生什么变化？

The results show that when firing temperature increased the amount of mollite increased and residue andalusite decreased linearly.

对试样XRD数据的分析结果表明，烧成温度升高，莫来石含量线性增大，残存红柱石线性减少，二者具有良好的相关性。

Objective: To know the sulfonamides residue level of the animality food, inquiry into the source of its pollution, evaluate the safety of its meal, a high performance liquid chromatography method was developed for determination the sulfonamides residues of sulfadiazine, sulfamonomethoxinne, sulfamonomethoxine and sulfaquinxalin in pork.

目的：为了解动物性食品中兽药残留水平，探讨其污染来源，评价其膳食安全性，因此建立猪肌肉组织中磺胺嘧啶、磺胺甲恶唑、磺胺对甲氧嘧啶、磺胺喹恶啉残留量的高效液相色谱测定方法。

Anticholinergic pesticides such as organophosphate and carbamate have high level of residue and intensity of poison, and hence higher probability of food poisoning of critical nature.

抗乙醯胆碱类农药，因农药残留性高、急性毒性大，所造成的食物污染中毒严重度可能较高。

FITC can inhibit the antimonite-stimulated ATPase activity of ArsA and a combination of ATP and antimonite can completely protect ArsA from the inactivation of FITC. The Lys residue in the glycine-rich loop in ArsA is possibly one of the sites for FITC modification. Antimonite can induce the fluorescence resonance energy transfer between FITC and TRITC that separately labeled on different ArsA molecules.

研究还发现FITC对ArsA的ATP酶活性有抑制作用，ATP和SbO〓与ArsA的结合完全拮抗这种抑制，说明ATP和SbO〓与ArsA的结合能够引起ArsA产生一种完全不同于它们单独与其结合时的构象变化，从而使ArsA上FITC的修饰位点变得不易接近，同时ATP结合位点内的Lys可能是FITC在ArsA上的结合位点之一。

Disclosed are antiperspirant and deodorant compositions having improved stability, low residue performance and/or improved cosmetics.

公开了一种具有改进的稳定性、低残留性能和/或改进的化妆性的防汗、除臭的组合物。

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