查询词典 DNA

The experiment showed that the twin spirochaeta of PNA-DNA can quench the fluorescence of ST in some degree.And the fluorescence quenching of ST was reduced when PNA-DNA twin spirochaeta dissociate.

实验结果发现当 PNA- DNA杂交形成双链时，可以在一定程度上猝灭 ST的荧光，而当双螺旋解链时，对 ST荧光的猝灭程度减小，逐渐接近于 ST本身的荧光，根据荧光强度的变化研究了 PNA- DNA的杂交和解链过程。

Of the 126 exacerbation sputa, all samples were negative for M. pneumoniae and C. pneumoniae DNA, whereas one sample was positive for Legionella non-pneumophila DNA.

所有126例急性加剧患者痰液样本中检测肺炎支原体和衣原体的DNA结果为阴性，一例样本检测非肺炎的军团杆菌属DNA结果为阳性。

Of the 122 stable state sputa, all samples were negative for M. pneumoniae and C. pneumoniae DNA, whereas one sample was positive for Legionella non-pneumophila DNA.

所有122份稳定慢性阻塞性肺疾病患者痰液样本中检测肺炎支原体和衣原体的DNA结果为阴性，但有一例样本检测非肺炎的军团杆菌属DNA结果为阳性。

In order to get the information of interaction between metal complex and DNA and select metal complexes which can cleave DNA effectively, twenty seven transition metal complexes containing O/N coordinate atoms have been synthesized in this thesis. We report the synthesis, crystal structure and properties of the complexes. One of the complexes is the first μ〓-oxalato tetranuclear Cu complex, in which there is ferromagnetic interaction between the copper atoms bridged by oxalate ions. Two trinuclear copper complexes containing partial cubane Cu〓O〓 cores have been synthesized and discussed the magnetic properties.

为了解金属配合物与DNA的相互作用及筛选能有效切割DNA的金属配合物，为无机药物合成及应用提供基础信息，本文利用十个含N、O原子的多齿配体设计合成了二十七个未见文献报道的过渡金属配合物，并解析了它们的晶体结构：其中包括首例μ〓-草酸根的四核铜配合物；合成了两个具有μ〓-OH〓三核缺角立方烷结构的Cu配合物；以HCBP衍生物为配体合成了七个过渡金属配合物；以SCN〓、N〓，C〓O〓等为桥联配体，以dmpyen为端基配体合成了十一个配合物。

On other hand, specific fragments containing thermostable DNA polymerase gene were amplified from the genomic DNA of some strains of thermophilic bacteria isolated from Yunnan hot springs, and recombinant plasmids were constructed.

同时，我们还利用特异性的热稳定DNA聚合酶基因的扩增引物，从生长在云南温泉的嗜热菌总DNA中筛选出了能被此类引物扩增的特异性片段，并构建了相应的重组质粒。

Full-length plasmid DNA was amplified with the above primers with a high-fidelity thermostable DNA polymerase capable of long-rang amplification.

用能扩增长片段的高保真耐热 DNA聚合酶扩增全长的质粒DNA，直接转化大肠杆菌。

Infection of ESCs by the murine leukaemia viruses results in the normal establishment of integrated proviral DNA, but this DNA is then transcriptionally silenced, preventing further viral spread.

通过鼠类白血病病毒感染ESCs导致整合前病毒DNA的正常建立，但这种DNA而后变为转录沉默，阻止了病毒的进一步蔓延。

SUMO has been shown to covalently modify a large number of proteins, reversible modification by SUMO regulates nucleocytoplasmic translocalization, protein-DNA binding activity, protein-protein interaction, transcriptional regulation, DNA repair, and genome organization.

SUMO与靶蛋白之间这种可逆的共价连接，在核质运输、DNA 与蛋白质结合活性、蛋白质之间相互作用、转录调控、DNA 修复以及维持基因组稳定等方面均发挥着重要的调节作用。

Result The nested PCR assay was specific and there is no cross-reaction with other parasites, such as Eimeria spp., Cryptosporidium spp., Giardia sp., Toxoplasma sp., Trichuris sp. and cattle ciliate. The assay was able to detect as low as 2.85 × 10^(-2) fg of control positive DNA. The results of detection of clinical samples revealed that the assay was coinciding with microscopic examination.

该套式PCR能特异性地扩增出牛源环孢子虫基因组DNA中相应片段，与艾美耳球虫、隐孢子虫、贾第虫等10种相关原虫基因组DNA无交叉反应；最低能检测到2.85×10^(-2)fg的阳性参照DNA；对临床样品检测结果表明PCR技术检查阳性者显微镜检查都为阳性。

In this sense, IDA plays dual effects, tridentate chelating to Cu(2) and bridgebetween two Cu(1) andCu(2).3 Metal complexes were selected as the appropriate for the study of cleavage plasmid pBR322DNA by gel electrophoresis technique. The results showed Ni and Mn complexes could cleave effect- ively DNA in the presence of H2O2 at physiological pH and temperature, whereas individual Zn complex could cleave effectively DNA.

通过电泳实验研究了一系列金属配合物与pBR322DNA的作用，发现在Tris-HCl缓冲溶液中，生理条件下，镍、锰配合物在共反应物H_2O_2存在下能够很好的断裂DNA，而Zn配合物单独作用就能够使DNA由ccc型转化为oc和linear型。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。