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Cloning of the Schwanniomyces occidentalis α-amylase and high expression in S.cerevisiae.The E.coli / yeast shuttle plasmid YCEpl partial library of Schwanniomyces occidentalis DNA was constructed and α-amylase gene fragments were screened in Saccharomyces cerevisiae by amylolytic activity.Several transformants with amylolysis were obtained and one of the fusion plasmids has about 5.0 kb inserted DNA fragment.It contains the upstream and downstream sequences of α-amylase gene from S.occidentalis .

以E.coli/yeast穿梭质粒YCEp1为载体构建西方许旺酵母部分基因组文库，在大肠杆菌中扩增后提取混合质粒DNA，经电转化非缺陷标志酒精酵母 AS.2.1364，在YPDS平板(含1%葡萄糖和1%可溶性淀粉)上用淀粉水解活力筛选含水解淀粉的阳性转化子，从阳性转化子中分离重组质粒证实含5.0kb的插入片段，用α-淀粉酶基因两端序列设计的引物PCR扩增及扩增片段序列分析证实该片段中含有α-淀粉酶全部编码序列。

Coli BL21, and to explore the antigenicity.

coli BL21中表达，研究其抗原性，为疫苗的开发奠定基础。

Src l was an acidic cytolysin, which was reported forthe first time. The cDNA encoding the mature Src l was cloned into non-fusion expression vectorpBV220 and expressed successfully in E.coli DH5α in inclusion body. After washing anddenaturing-renaturing, the recombinant Src l protein was purified by Q Sepharose FastFlow ion exchange chromatograph and Phenyl Sepharose hydrophobic interactionchromatograph.

首先构建了Src I基因的非融合蛋白表达质粒pBV220-Src I，并成功地在原核细胞E.coli进行了重组表达，筛选出稳定表达的工程菌株DH5α，摸索了稳定表达的条件，摸索了包涵体的洗涤、变性和复性条件，摸索出了复性蛋白Src I的纯化工艺，纯化过程简单，经QSepharose Fast Flow阴离子交换层析和Phenyl Sepharose疏水层析两步纯化，就可获得了高纯度的重组蛋白样品(纯度达99％以上)，该纯化方法适合重组蛋白的大量纯化，为Src I的性质、结构和功能研究奠定了良好的基础。

Truncation mutations in the adenomatous polyposis coli protein are responsible for familial and sporadic colonic tumours. Except for its function as a role in regulating b-catenin, recent studies show that APC has additional roles in cytoskeletal regulation. It binds to microactin and microtubules directly and indirectly. Furthermore, APC plays an important role in mediating the detraction of chromosome.

编码APC蛋白(adenomatous polyposis coli， APC)基因的缺失突变会导致家族性和散发性的结肠癌，APC蛋白除了能直接参与Wnt信号途径调节b-catenin的浓度之外，最近的研究表明APC蛋白能够与细胞骨架的主要成分微管和微丝直接或间接结合，通过调节微管的解聚和聚合，间接调节染色体的分离，作为潜在的细胞骨架调节分子将细胞骨架与重要的细胞信号转导通路紧密联系在一起。

The plasmid of pMD-T-GO and pPIC3.5K were extracted from JM109 strain and then glycolate oxidase gene fragment was cloned into the expression vector (pPIC3.5K). The recombinant plasmids were transformed into E.coli TOP 10Fˊ. The recombinant clones were identified by PCR, digested with SnaB I /Not I and then sequenced.

本文首先从大肠杆菌JM109中提取质粒pMD-T-GO和pPIC3.5K，将菠菜乙醇酸氧化酶基因c DNA片段克隆至表达载体pPIC3.5K，转化进E.coli TOP 10Fˊ，利用设计的引物进行PCR扩增、SnaB I和Not I酶切鉴定，最后进行序列分析。

There can be no guarantee against E Coli.

因为对于会不会有E Coli我不能保证。

And 9. 21 ×l0〓, respectively. Biotransformation of 6 hydantoin derivatives were carried out using D-hydantoinase genetic engineering strain E. coli BL21/pMD-T〓-dht resting cells.

本文还比较了D-海因酶基因工程菌E.coli BL21／pMD-T〓-dht细胞对6种海因类衍生物的转化情况，对利用这条海因路线制备其它D-氨基酸进行了初步探索。

Coli BL21, and expressed in very high level as inclusion body after induced with IPTG.

coli BL21(DE3)中，经IPTG诱导获得很高的表达量，且目的蛋白以包涵体形式存在。

A Minnesota meat packer is recalling about 188,000 pounds of beef that may be contaminated with E.coli.

明尼苏达州的一家肉类企业主正在召回可能感染E.coli的188，000英镑牛肉。

Coli BL21（DE3） which expressed Ag473-3His do not cross reaction with human neuroblast, such finding make this lipoprotein a potential vaccine candidate.

coli BL21（DE3）全菌菌体免疫产生的抗体并不会和人类神经原母细胞产生交叉反应，因此成为疫苗的首选。

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