查询词典 PST

Based on the cloning FeSOD gene of the HZNH, the recombinant prokaryotic expression vector, PQESOa/FeSOD, was constructed and digested with restriction endonuclease BamH I and Pst I to check its construction. The PQE30a/FeSOD was then transformed into E.coli Ml5 and induced with IPTG. The high expression in vitro was obtained and analyzed on SDS-PAGE gel. The*results showed that the target proteins held a 37% portion in whole bacterial proteins and consisted of two parts, the soluble proteins and inclusion bodies. The soluble proteins in the aqueous layer, checked by means of activities of FeSOD enzymes and analyzed by means of activities of isozymogram from PAGE, demonstrated the induced expression proteins had the active nature of FeSOD enzymes.

以克隆的特异种质烟草HZNH的FeSOD基因为基础，构建了原核表达载体PQE30a／FeSOD，经限制性内切酶BamH Ⅰ、Pst Ⅰ双酶切鉴定后，再转化入大肠杆菌M15中，通过IPTG诱导，得到高效体外表达，经SDS-聚丙烯酰胺凝胶电泳检测，表达的目的蛋白占总菌体蛋白的37％，可溶性和包涵体两种形式均有存在，上清中的可溶性蛋白经FeSOD酶活测定和同工酶活性谱带分析，表明诱导表达的上清中的目的蛋白为有活性的FeSOD酶。

In this study the clubroot resistant CR DH line, susceptible inbred line 94SK of Chinese cabbage, the resistant and susceptible DNA bulks constructed from F2 individuals of CR DH line and 94SK were used to select the adaptive AFLP primer combination. AFLP analysis was performed with 256 Pst Ⅰ/Mse Ⅰ primer combinations.

为了筛选出大白菜适宜的AFLP引物组合，研究以抗根肿病大白菜双单倍体CR Shinki、感病自交系94SK及其后代F2构成的纯合抗病和纯合感病DNA混合池为材料，利用256对Pst Ⅰ/Mse Ⅰ引物组合进行了AFLP分析。

Image taken using ATK-1HS II webcam on Coronado PST-Ha and 2x barlow lens.

使用 ATK-1HS II 摄像头配合Coronado PST-Ha 和两倍巴罗镜。

In addition to the reason of crystallography, it is primarily attributed to the effect of the interfaces in the PST crystal on deformation.

这种各向异性的产生有晶体学取向的原因，但最主要的是由于PST晶体中片层界面对变形的影响。

In my experimentⅠcompare the purposes of different combinations of endoenzyme(MseⅠ-HindⅢ, MseⅠ-PstⅠ, MseⅠ-EcoRⅠ) and find that MseⅠ-HindⅢeasily finds thepolymorphism by primers combinations suiTab for AFLP analysis.And by means of this there aremany polymorphism strips. So the double endoenzyme of AFLP was exercisedfor the analysis of soybean cytoplasmic male sterility.In the cource of my experiment, 64 primerpairs of MseⅠand HindⅢwere exerted to analyse the twe mtDNA pools which are made ofsterilities and holdings and the polymorphisms of sterilities and holdings.

运用扩增片段长度多态性的方法，对独特的杂交大豆试材进行分析研究，通过比较MseⅠ-HindⅢ、MseⅠ-PstⅠ、MseⅠ-EcoRⅠ不同酶切组合的效果，结果表明MseⅠ-HindⅢ较容易找到多态性引物组合，而且具有较高的多态性，本试验选用MseⅠ-HindⅢ进行双酶切大豆线粒体DNA从而完成AFLP的分析工作，试验用64对MseⅠ和HindⅢ引物对两个不育系及保持系材料的线粒体DNA制成的pool进行AFLP标记分析，分析了不育系与保持系之间的多态性； 4。

It is shown that polystyrene has been grafted on the surface of nmSiO2 particles and the grafting ratio is about 40%. The surface of nmSiO2 could be treated effectively by KH570in absolute ethanol at 25℃, 48h. The nmSiO2-g-PSt unpurified by toluene appear microsphere in which nmSiO2 particles are contained, whereas the purified one appear internet formed by many pieces. The grafting ratio of PSt on nmSiO2 surface could be influenced obviously by dispersion agents content and agitation speed, whereas the morphology of nmSiO2-g-PSt purified is rarely changed.

结果表明：常温下在无水乙醇介质中处理48h以上可获得良好的硅烷处理效果；PSt已接枝包覆于nmSiO2表面，接枝率约40%；经甲苯洗涤前nmSiO2-g-PSt呈多粒子包覆微球状，洗涤后呈单粒子包覆网状结构；分散剂用量、搅拌速度改变对接枝率有影响，但对包覆形态影响不大。

By means of GPC,IR,GC-MS,~(13)CNMR,~1HNMR,Methylation analysisetc,structural properties of PST-1 were identified as follows:The Mwof PST-1 was 3.44×10~6 Da and its optical rotation was _D~(20)=+0.110°(c0.1, H_2O); PST-1 constituted 8 simple sugars and the molar ratio was 2,4-Dimethoxy-Mannose:Rhamnose:Ara-binose:Xylose:Galactose:D-Galacturonic acid:Mannose:D-glucuronic acid=2%:5%:24%:9%:3%:1%:46%:10%;The chief bone of PST-1 was 1,3,6-linked-β-D-Man residue and the side chains contained Furanoid and Pyranoid residues.

结合GPC、旋光度测定、IR、GC-MS、~(13)CNMR、~1HNMR、高碘酸氧化法、Smith降解以及甲基化方法等分析测试方法，得到PST-1的单糖组成及结构表征，实验结果如下：红豆杉多糖PST-1是重均分子量为3.44×10~6 Da的支链多糖，旋光度为20D=+0.110~0(c0.1，H_2O)；PST-1单糖组成为：2，4-Dimethoxy-Mannose：Rhamnose：Arabinose：Xylose：Galactose：D-Galacturonic acid：Mannose：D-glucuronic acid=2％：5％：24％：9％：3％：1％：46％：10％；PST-1的骨架结构为：具有1，3，6-连接的β-D-甘露糖残基骨架，侧链分枝包括非还原末端的呋喃型α-L-阿拉伯糖残基、吡喃型α-L-阿拉伯糖残基、β-D-木糖残基、β-D-甘露糖残基、2，4-二氧甲基-β-D-甘露糖残基和α-D-葡萄糖醛酸残基；侧链的糖残基也可能存在2，5-二氧-取代呋喃型α-L-阿拉伯糖基、3-氧-取代的β-D-木糖残基、6-氧-取代的α-D-半乳糖醛酸残基、6-氧-取代的α-D-半乳糖残基、4-氧-取代的α-D-葡萄糖醛酸残基和2-氧-取代的α-L-鼠李糖残基，同时后者也可能穿插在主链上。

Assisted by DNA2.0 and Gene2Oliga software, we optimized the codon usage and secondary structure of RNA and induced enzyme sites Cla I (237 site) and Pst I (475 site) into the gene. In the first step, fragments F1 (237 bp), F2 (238 bp) and F3 (422 bp) were separately synthesized by assembly PCR. In the second step, fragments F1, F2 and F3 were separately digested by Cla I and Pst I, and then ligated into a full length lipA gene.

首先在DNA2.0和Gene2Oliga软件辅助下对lipA基因密码子及RNA二级结构进行优化并引入Cla I(237位)和Pst I(475位)酶切位点；通过组装PCR分别合成lipA基因的各片段F1(237 bp)、F2(238 bp)和F3(422 bp)；通过该基因内的Cla I和Pst I限制性酶切位点连接成完整的全长lipA基因。

Chicken IL-15(ChIL-15), Which was discovered in 2001, plays a main role in activating NK cells and CD8+ memory T cells, and may therefore have potential as a vaccine adjuvant.According to published ChIL-15 gene sequence, a pair of primers were designed and synthesized to clone ChIL-15 cDNA from ConA-activated chicken splenocytes by RT-PCR. Recombinant plasmid pUC19ChIL-15 carrying the ChIL-15 gene was constructed. The gene encoding mature ChIL-15 (mChIL-15) was amplified from pUC19ChIL-15 by PCR and cloned into pMD 18-T vector. After digested with Kpn I /Pst I , the mChIL-15 gene was subcloned into prokaryotic expression vector pPRoEX橦Ta and transformed into E.coli DH5a .The transformant was induced by IPTG, and the recombinant ChIL-15(rChIL-15) was expressed as a fusion protein with a histidine hexamer tag at the N-terminal end of the protein. Following expression, the protein was purified by ProBond?Nickel-Chelating Resin. The uninduced and induced protein lysates and the purified protein were separated by SDS-PAGE and transferred onto nitrocellulose membrane to identify rChIL-15 by Western blot. The rChIL-15 was used to immune the guinea pig to obtain rChIL-15 polyclonal antibody.

参考已发表的ChIL-15基因序列，设计合成引物，应用RT-PCR技术从刀豆球蛋白A活化的白来航鸡脾淋巴细胞中克隆ChIL-15 cDNA，将其与SmalⅠ酶切处理的pUC19载体连接，构建重组质粒pUC19ChIL-15；用PCR技术从pUC19ChIL-15中扩增出去信号肽的成熟ChIL-15(mChIL-15)基因，与pMD 18-T载体相连构建重组质粒pMDChIL-15；然后用KpnⅠ／PstⅠ双酶切下mChIL-15基因片段，定向亚克隆到经同样酶切处理的带有6个组氨酸标签的表达载体pP_RoEX~HTa中，构建重组质粒pP_RoChIL-15，对其测序确认读框正确后，转入大肠杆菌DH5α中诱导表达并进行纯化，用重组ChIL-15(rChIL-15)免疫豚鼠，制备多克隆抗体；再用HindⅢ／PstⅠ从质粒pP_RoChIL-15上切下mChIL-15基因，定向亚克隆到经同样酶切处理的杆状病毒转移载体pMelBacB中，经酶切、PCR和序列测定鉴定后，与杆状病毒线形化DNABac-N-Blue~(TM DNA共转染Sf9昆虫细胞，经三轮蚀斑纯化，构建重组杆状病毒rBac-ChIL-15，用该重组病毒感染处于对数生长期的Sf9细胞，按不同的时间收取样品，离心后对其上清和沉淀进行SDS-PAGE和Western blot分析。

The numerical results of yield strength, based on considering the lamellar microstructure and the deformation mechanisms such as ordinary slip systems and true twinnings in PST crystals composed of and phase, is obtained by using calculating of resolved shear stresses in all slip systems based on micromechanical method.

基于PST晶体的微结构和相及2相普通位错和孪晶滑移启动，结合细观力学方法，通过数值模拟两相中的各滑移系上的分切应力，得出PST晶体屈服应力和外加载荷与片层之间夹角的关系。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了