查询词典 DNA

The results demonstrate that SarA regulated directly the expressions of lipA, zinC and atlE by protein-DNA binding to the promoter region of AT-rich sequence.

生物信息学分析表明，SarA控制atlE，lipA和zinC 3种基因表达可能是通过与被调控基因上游的特定DNA序列的结合来实现的，该DNA结合区保守并富含AT碱基。

Methods Ovarian GC DNA fragments of both atretic and developing follicles before and after estrogen (1 μg/ml), androgen (1 μg/ml) treatments were analysed by agarose gel electrophoresis. The expression of bcl-2 mRNA was also determined by northern blotting in GC of developing follicle after sex steroids addition. Results Internucleosomal DNA cleavage occurred in granulosa cells in atretic follicles and after androgen treatment.

应用细胞培养、选择性DNA抽提和琼脂糖凝胶电泳技术分析闭锁卵泡和发育中卵泡颗粒细胞的凋亡状况，及雌激素(1 μg/ml)、雄激素(1 μg/ml)对体外培养发育中的卵泡颗粒细胞凋亡的作用；用Northern印迹杂交技术检测经雌、雄激素刺激后发育中的卵泡颗粒细胞bcl-2基因mRNA表达的变化。

So SDS method is the best DNA extraction method for Citrus aurantium, and DNA quality suitable for molecular detection experiment.

因此，SDS法是枳壳DNA最佳提取方法，可用于分子检测试验。

Results:β-L-D4A was successfully synthesized and confirmed by IR, NMR and MS. Autoradiographic bands showed similar for supernatant and intracellular HBV DNA. Episomal HBV DNA was inhibited in a dose-dependent manner. EC50 of 3 -L-D4A was 0.2 μM. The experiment of cytotoxicity gained its IC_(50) 200 μM.

结果经一系列步骤合成的化合物β-L-D4A经红外光谱、质谱和核磁共振谱鉴定正确；2.2.15细胞培养上清液病毒DNA的Southern印迹、自显影结果显示药物对病毒的抑制呈明显的浓度依赖性，计算出EC_(50)为0.2μM；细胞毒性实验显示IC_(50)为200μM。

These two avirulence genes were linked in the segregation population. 2. The genome DNA of wheat powdery mildew was extracted from isolates derived from single colonies.

对小麦白粉菌 DNA 的 RAPD 分析的结果未表明 RAPD 标记的 DNA 多态性和无毒性多态性之间直接的相关关系，这一结果与前人对其它真菌病原菌的研究结果相同。

Methods We used the automatic DNA sequencing machine (Model 377) to detect the nucleotide sequence of the inserted part of the recombinant plasmid pBX1 from Borrelia burgdorferi B31 strain.

方法采用377型DNA自动测序仪对莱姆病螺旋体重组质粒pBX1的插入片段进行DNA序列测定，并通过计算机软件对其进行限制性内切酶酶谱分析。

Results In 22 (91%) cases, both bronchoscopic and surgical samples showed DNA aneuploidy, but DNA index in surgical specime...

结果纤支镜组与手术组标本异倍体符合率为91％，但手术组DNA指数明显高于纤支镜组（P＜005）。

Methods The primer design is referring to thearticleof Bulter. Over 120 samples provided by the laboratoryare detected to verify the concordant results between miniSTR andcommon STR. We construct the miniSTR multiplex system usingdomestic Taq DNA polymerase, and detect the results by ABI—310Genetic Analyzer. We have alsostudied the sensitivity, accuracy, species-specificity and different PCR outcome under each annealtemperature.

方法参照Bulter等对THO1、TPOX、CSF1PO三个基因座miniSTR的引物设计，选用本教研室提供的123例无血缘关系个体的血样，进行THO1、TPOX、CSF1PO三个基因座PCR-miniSTR银染检测，检测结果与商品化试剂盒的检测结果进行一致性检验；采用国产DNA聚合酶构建miniSTR荧光标记复合扩增体系，用美国ABI-310基因分析仪进行检测；对该荧光标记复合扩增体系的灵敏度、准确性、种属特异性、不同退火温度下复合扩增的效果、陈旧血痕DNA的检测等进行研究。

An additional micro-structure filter design is adopted in this chip to function as a single cell micro-channel for the purpose of centralizing the cells in a line. DNA or other nano-injectors could be pumped to the electroporation region and be inserted into the target cell via the castellated electrodes with several short electrical pulses.

以交流电动式微帮浦传送DNA或是染剂至On-Chip的电穿透实验区域，给予交错城堡状电极数个脉波的电压讯号，使得已被操控至定位的细胞其细胞膜产生暂时性的微通透孔隙，便能够将DNA或是染剂送入细胞中，观察其生物反应，此一技术将可提供生医医药研发及癌症(drug screening and cancer study)方面的研究应用。

Compared to BMVC,9E-BHVC has many better features needed by a two-photon probe,such as larger two-photon action cross sections,stronger affinity to DNA and better water-solubility.These excellent properties of 9E-BHVC all mentioned above imply that it would be a true two-photon nucleic acid fluorescent probe if it can specially recognize the DNA in complex cellulous environment.So this dissertation has investigated the ability of 9E-BHVC on the cell nucleus imaging detaily.

与BMVC相比，9E-BHVC表现出作为双光子荧光探针更好的特性，例如具有更大的活性吸收截面和更高的结合常数，且具有更好的水溶性。9E-BHVC这些优良的性质预示着该分子如果能够在复杂的细胞环境中特异性地识别DNA，那么它将是真正意义的双光子核成像探针。

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。