查询词典 fragment

The 3-D anionic framework of JGP-9 is built up from a repetition of an enneameric structural fragment 〓 and HPO〓 tetrahedra.

JGP-11由来自不同二级结构单元分别组成的层堆积而成的含有4-，8-元环孔道的三维开放骨架。

In this study, shuffling test and tetrads analysis were carried out to examine the complementation between Lag1p and LASS2 or its fragment containing TLC domain but excluding HOX domain (LASS2 △ HOX).

本实验通过质粒丢失实验和四分子分析实验分别检测了全长LASS2，去除HOX domain而保留TLC domain的LASS2片断(LASS2ΔHOX)与Lag1p功能互补的可能。

The protein interaction domains was delineated at the N-terminal 50-amino-acid fragment of HCV core protein and the C-terminus of p53. Confocal analysis also revealed that these two proteins colocalize in subnuclear granules and peri-nuclear region. Transfection experiments using a p53-responsive reporter plasmid in HuH-7, Hep3B, HepG2 and H1299 demostrated that full-length HCV core protein could elicit a positive or negative effect on the p53-mediated transcriptional activation depending on the concentration of the HCV core protein.

更且利用p53蛋白C端删除55-95个胺基酸之质体与含p53蛋白结合区之报导基因和表现全长HCV核心蛋白三者之质体於H1299细胞株进行共同转染时，与全长p53蛋白比较，发现HCV核心从增强全长p53蛋白之转活化能力转为抑制p53蛋白缺乏C端55-95个胺基酸之转活化能力，因实验室已有结果证实活体外及活体内缺乏C端55个及75个胺基酸之p53蛋白无法与HCV核心蛋白进行结合(Kao， unpublished data)。

In spermatocytes, the proteins of lower MW have high affinity to the A-T repetitive DNA fragment, but it is only in round spermatids that some proteins of higher 40kD have strong affinity.

Southwestern blot显示精母细胞的低分子量蛋白对A-T重复序列的吸附能力强，而只有早期精子细胞的部分高分子量蛋白对该序列具有很强的亲和力。

A fragment about a size 300x400X10mm spalled from a φ400×1200mm 9Cr_2Mo cold working roll in an accident during rolling strips was investigated.

本文研究了一块300×400×10mm的剥落块，这个剥落块是在轧制带钢时因事故从Φ400×1200mm的9Cr2Mo冷轧工作辊上剥落下来的。

A layer of strip steel was found abrasion-welded to the surface of the spalled fragment and a 0.06mm thin layer of untempered martensitic structure was observed on the surface of the roll just beneath the welded strip.

在剥落块的表面上粘结着带钢，在带钢下的轧辊表面上观察到一层厚度约0.06mm未经回火的马氏体组织，此层下面还有一个具有低硬度的回火马氏体区域，晶间显微裂纹就从此两区域之间发生，然后垂直地向里向外扩展。

The frequency of three mitochondriai point mutations,1555A→G,3243A→G,7445A→G,was examined using restriction fragment length polymorphism annlysis in 262 Chinese patients with NSHL,con- sisting of 168 sporadic cases,69 sib pairs,and 25 families with affected subjects in more than one generation.

方法收集非综合征型神经性耳聋病例262例，其中散发病例168例，69例同代有耳聋患者，25例不止1代有耳聋患者，采用限制性片段长度多态性分析线粒体基因中的下列3个点突变：1555A→G，3243A→G，7445A→G。

The summary results are below:1. GUS expression under the driving of the BjCHI1 promoter (-1060/+17) was essentially undetectable in the young seedlings under normal growth conditions. GUS activity was first detected in the stigma of young flowers, peaked in the young siliques, and decreased when the siliques became older. No GUS expression was found in the mature siliques, seeds or root.2. The BjCHI1 promoter (-1060/+17) was inducible by NaCl, PEG, wounding and MeJA treatments. High levels of GUS expression were detected in the transgenic tobacco and Arabidopsis plants after wounding, NaCl, PEG, and MeJA treatment, indicating that the BjCHI1 promoter responses to both biotic and abiotic stresses.3. RT-PCR analysis confirmed that the expression of the BjCHI1 gene in B. juncea was inducible by PEG and NaCl.4. The transcription start site was determined by 5′-RACE, and was located at the 17th nucleotide upstream of the translation initiation codon of the BjCHI1 gene.5. A -805/+17 promoter fragment was enough to response to wounding and MeJA induction, which was proved in transgenic tobacco and Arabidopsis plants. The 397 bp region between -805 and -409 of the BjCHI1 promoter contains a cis-acting element that is essential for the wounding and MeJA inducibility.6. The -695/-620 region was necessary but not sufficient to confer MeJA-responsive expression. A T/G-box locates in -353 play an important role in the expression of the BjCHI1 gene in response to MeJA treatment. The 76 bp region is coupled with the T/G-box to confer full MeJA-inducible transcription of the BjCHI1 gene.

主要结果如下：1、利用转基因拟南芥植株分析表明，正常生长条件下，BjCHI1启动子(-1060/+17)驱动GUS基因主要在花柱中表达，幼嫩的荚也有表达，并随着果荚的成熟而减弱，成熟的果荚、种子和根没有显示GUS活性。2、BjCHI1启动子(-1060/+17)能驱动GUS基因在转基因烟草和拟南芥中响应伤害的诱导，转基因拟南芥的分析还证明BjCHI1启动子也受MeJA、NaCl和PEG的诱导，证明BjCHI1启动子是一个伤害、MeJA、NaCl和PEG等生物和非生物因素诱导启动子。3、RT-PCR进一步证明芥菜中BjCHI1基因也受NaCl和PEG的诱导表达。4、5′-RACE法鉴定了BjCHI1启动子的转录起始位点，位于翻译起始位点ATG上游第17个碱基A.5、转基因烟草和拟南芥分析证明，-805/+17的启动子片段足以响应伤害和MeJA的诱导，-805和-409之间397 bp的启动子片段含有对伤害和MeJA诱导必要的元件。6、本明烟叶片瞬时表达系统分析证明，一段76 bp的序列(-695/-620)对BjCHI1启动子响应MeJA的诱导是必要的，但不足以响应MeJA的诱导，位于-353的T/G-box也参与MeJA的诱导。76 bp的序列(-695/-620)与T/G-box协同起作用，赋予BjCHI1启动子MeJA诱导性。

One pair of primers that amplified the gB gene of pseudorabies viruswas designed and synthesized.PCR technique detecting the DNA of PRV was established after selecting the best reaction conditions.This technique was applied to specifically amplify the 281 bp DNA fragment of the PRV strains including Fa,Fb,Bartha,BJ,GD,V2F4,S,S3,SR,Buk,Shope,Norden,Mink Ⅲ,HB,F8,F9 and F12 in cultured samples.The negative results were achieved from Vero cells,swine vesicular disease virus,hog cholera virus,Japanese encephalitis virus,porcine reproductive and respiratory syndrome virus,porcine parvovirus,foot and mouth disease virus F29 strain,O3I3 strain,T509 strain and O Ⅱ MF249 strain.The results of sequencing showed that the PCR method was of specificity.The sensitivity of PCR reached 15.8 pg of PRV Fa strain DNA.The tissue samples obtained during 1994 and 2000 were detected,and the results showed that the sensitivity of PCR was more sensitive than virus isolation and the Sandwich ELISA.The PCR was applied to detect 191 tissue samples from 31 pig farms obtained from Guangdong,Fujian,Hainan Provinces during 1999 and 2000,50 samples(26.2%)were positive and 22 pig farms(71%)were positive.

根据伪狂犬病病毒gB基因的序列，设计并合成了一对引物，以闽A株细胞培养毒为模板，筛选最佳反应条件，建立了检测PRV的PCR方法应用该方法对Fb、Bartha、BJ、GD、V2F4、S、S3、SR、Buk、Shope、Norden、MinkⅢ、HB、F8、F9、F12等毒株的细胞培养液进行基因扩增，均获得了分子量为 2 81bp的特异性目的DNA片段，而对Vero细胞与FMDV、SVDV、HCV、PRRSV、JEV、PPV等病毒进行检测，结果均为阴性，没有出现交叉反应对PRV毒株扩增的产物测序，结果序列与文献报道一致，证明PCR扩增产物和方法的特异性对 1994～ 2 0 0 0年期间送检的临床样品和保存的PRV毒种，用病毒分离、双抗体夹心ELISA和PCR等 3种方法进行检测，结果前 2种方法检测为阳性的，PCR检测均为阳性；PCR检测为阴性，前 2种方法检测也为阴性；可是，前 2种方法检测为阴性的，PCR却检测出部分阳性；经x2 检验，证明PCR检出率明显高于前 2种方法的检出率对PRV闽A株细胞毒提取物DNA进行检测，其最低检出量为 15 8pg 对 1999～ 2 0 0 0年期间广东、福建、海南等省的 31个大中型猪场送检的 191份病料进行检测。

Both selfed seeds and hybrid seeds were obtained from male parent tobacco integrated with Cre gene and female parent tobacco with blocking fragment.

目前，已获得转基因烟草自交种子。以转阻断序列结构为母本，以转Cre基因为父本所进行的杂交组合种子也已经获得。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。