核苷酸

Methods We used retrograde CTb immunocytochemical and NADPH-d histochemical staining methods after microinjecting CTb into cortical amygdaloid.

采用霍乱毒素B亚单位逆行追踪和还原型尼克酰胺腺嘌呤二核苷酸脱氢酶组织化学双重染色相结合的方法。

In this study, we designed a novel peptide nucleic acid analogue of DNA.

在寡核苷酸类似物的研究中，为了模拟天然核酸的结。。。

Recently, a kind of F-box genes were isolated and identified from the plants of Antirrhinum, Prunus dulcis and Prunus mume, et al.

最近从金鱼草、Prumus dulcis、梅等植物中分离的F-box基因，它具有花粉S基因特点，即在花药、成熟的花粉和花粉管中特异表达；在基因位置上，与S-RNase基因紧密连锁；不同物种或同一物种不同品种F—box基因间核苷酸和氨基酸序列上存在高度多态性。

Phosgene ; lung/injuries ; oligonucleotide array sequence analysis ; gene expression

光气； 肺/损伤；寡核苷酸序列分析；基因表达

Gene expression ; Oligonucleotide array sequence analysis ; Choroidal neovascularization ; Rats ; inbred BN ; Krypton ; Laser

基因表达；寡核苷酸序列分析；脉络膜新生血管化；大鼠；近交BN ；氪；激光

This study was aimed to find single nucleotide polymorphism in the promotor region of asparagine synthetase gene and to determine if these SNPs have influence on the transcriptional activity of AS promotor.

本研究旨在通过筛查发现AS启动子区的单核苷酸多态性位点，研究它们对AS基因表达量的影响及寻找对Lasp治疗反应具有影响的个体遗传因素。

The mutations were induced at 410 and 411 sites of coding region, which corresponds to a substitution of asparagine to isoleucine at position 104 from the first amino acid of DHDPS mature protein.

将dhdps cDNA编码区的第410和411位核苷酸由AC突变为TT，这一突变使DHDPS成熟蛋白的第104位氨基酸由天冬酰胺变为异亮氨酸。

To study the mechanism, a stable and credible assay system to measure gene conversion is of great importance.

因此，揭示寡核苷酸介导的基因定点修复机制是该策略研究的重要内容。

The results show that all the hmgr genes from pigs, cattle and chickens are astable enzyme proteins with the same gene sequence characteristics and encoding protein and physical and chemical properties; all the amino acid sequences have a high degree of homology, containing two conservative HMG-CoA binding motifs and two NADPH binding motifs; all the amino acid sequences, containing signal peptide, are secreted proteins; they are all hydrophobic transmembrane proteins with five transmembrane domains; random coil and α-helix are the main structural elements in the HMGR polypeptide chain; all the predictions of three-dimensional structure are V- shaped; there are more closer evolution relationship between the HMGR gene from pigs and cattle.

结果表明：猪、牛和鸡HMGR基因序列特点及编码蛋白质理化性质基本相同，均属不稳定类酶蛋白；保守结构域氨基酸序列具有高度的同源性，均含有保守的2个β-羟基-β-甲基戊二酸单酰辅酶A结合基序和2个还原性烟酰胺腺嘌呤二核苷酸结合基序；均有信号肽，属分泌型蛋白质；属于跨膜的疏水性蛋白，均有5个跨膜结构域；无规则卷曲和α-螺旋是HMGR多肽链中的主要结构元件；三维结构预测都呈"V"字形；猪和牛HMGR基因的进化关系最近。

The results showed that:(1) 5'-nucleotide contents in yeast autolysate was slightly increased by adding RNase frommalted barley roots;(2) higher pH did not improve the 5'-nucleotide contents even in the presence of RNase from malted barleyroots, but at the pH 8.0, the addition of Acalase could increase the final yield, soluble protein contents and 5'-nucleotide inthe presence of RNase from malted barley roots.

酵母核酸酶的pH稳定性和温度稳定性均比麦芽根核酸酶的要差。这说明自溶法生产酵母提取物时，即使外加5'-磷酸二酯酶不能有效提高呈味核苷酸的原因并非由于外加的5'-磷酸二酯酶性质不稳定，而是另有其它原因。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。