Study on Catalysis of Methionine Synthase VI. Synthesis of 3-N-Substituted-6-methyl Uracil

蛋氨酸合酶催化反应研究VI.3-N-取代-6-甲基 尿嘧啶的合成

The content of total phospholipids uracil and hypoxanthine were higher in Winter than other seasons .

冬季鹿血中总磷脂、 尿嘧啶和次黄嘌呤含量最高。

Therefore considerable efforts have been made to investigate thymine uracil and their derivatives .

因此，人们在腺嘌呤和 胸腺嘧啶以及它们的衍生物的性质方面做了很多的努力。

The structural and vibrational frequencies of Uracil in hydrated form is discussed .

对水合尿嘧啶 分子中， 尿嘧啶 分子的结构和振动频率的 改变 做了讨论。

In this paper we have devoted our efforts to design and prepare acyclic nucleosides 8-bromo adenosine derivatives and5-iodo uracil derivatives .

本文致力于微波辐射下无环核苷、8-溴腺苷衍生物 和5-碘 尿嘧啶衍生物的设计与绿色合成。

Determination of cytarabine and uracil arabinoside in plasma by HPLC

HPLC法测定血浆中阿糖胞苷及阿糖 尿苷浓度

Uracil A nitrogenous base that is found in RNA but not in DNA .

存在于RNA而非DNA中的一种含氮 碱基。

Tumor chemotherapy . some 5-substituted derivatives of uracil and 6-methyluracil

肿瘤的化学治疗Ⅲ.几种 尿嘧啶和6-甲基尿嘧啶的5-取代基衍生物

The efficacy observation of microwave union fluorine uracil treatment condyloma

微波联合 氟尿嘧啶治疗尖锐湿疣的疗效观察

In the present paper a new method is described in which 5 - ~ ( 131 ) I w_1789 - uracil is used in studies of bacterial DNA replication .

本文报导了一个用5-~（131）碘 尿嘧啶 代替 ~3H]- 胸腺嘧啶进行细菌DNA复制研究的新方法。

Uracil & a pyrimidine found in RNA that base-pares with adenine . a purine base found in DNA and RNA ; pairs with cytosine .

尿嘧啶&核糖核酸中的一种嘧啶，与腺嘌呤形成碱基对。DNA和RNA中的嘌呤碱，与胞核嘧啶成对。

The most abundant bases are cytosine thiamine and uracil ( pyrimidines ) and adenine and guanine ( purines ) .

最丰富的碱基是胞嘧啶，胸腺嘧啶， 尿嘧啶，腺嘌呤和鸟嘌呤。

DPD is the first rate-limiting enzyme in the catabolism of uracil and thymine and affects DNA synthesis by decreasing the level of uracil and thymine the necessary material for DNA synthesis .

DPD是 尿嘧啶和胸腺嘧啶分解过程中的第一限速酶，可降低用于DNA合成的尿嘧啶和胸腺嘧啶的水平而影响DNA的合成。

The differences between the absorption of leucine and uracil by various parts of mid-gut of silkworm larva were studied using trace method and culture in vitro technique . During in vitro .

应用示踪法和体外培养技术，研究了桑蚕幼虫中肠各部位对亮氨酸和 尿嘧啶吸收作用的差异。

But all these calculations did not give a molecular vibration mode and frequency so we used semi-empirical potential molecular dynamics method to study the vibrational properties of uracil molecules .

但所有的这些计算中并未给出分子的振动模式和频率，因此我们采用半经验势分子动力学方法研究了 尿嘧啶分子的振动性质。

A sample quick micro and accurate method for controlling the quality of Uracil in transformation is presented .

为转化 液 中 尿嘧啶 含量控制提供了一个简便、迅速、微量、准确的方法。

K have been studied . The enzymic synthesis conditions of Cytosine Uracil copolymers have been investigated .

K.的 复性。研究了 核糖胞嘧啶 和 脲 嘧啶共聚物的酶促合成条件。

Chiral Resolutions of Ethyl 2 - ( 9-Anthryl ) - 2-methoxyacetate by High-performance Liquid Chromatography The most abundant bases are cytosine thiamine and uracil ( pyrimidines ) and adenine and guanine ( purines ) .

2-（9-蒽基）-2-甲氧基乙酸乙酯的高效液相色谱手性拆分最丰富的碱基是胞嘧啶，胸腺嘧啶， 尿嘧啶，腺嘌呤和鸟嘌呤。

Uracil Determination Based on Fluorescence Quenching of CdSe Quantum Dots

CdSe量子点荧光猝灭法测定 尿嘧啶

It stores information as a sequence of chemical building blocks ( nucleotides ) we call A C T and G ( for adenine cytosine thymine and guanine in DNA and uracil replacing thymine in RNA ) .

它将信息存储为化学基本成分序列（核苷），我们将其称作A、C、T和G（表示DNA中的腺嘌呤、胞嘧啶、胸腺嘧啶和鸟嘌呤，以及RNA中的 尿嘧啶代替胸腺嘧啶）。

Normal Raman and surface-enhanced Raman Scattering Spectroscopy of uracil and5-halide uracils have been obtained and compared .

文中对 尿嘧啶及其5位卤代衍生物的常规和表面增强拉曼光谱进行了观察和比较。

In non-smokers inositol ribose galactose glucose uracil and citric acid were found to be differentially expressed .

而在非吸烟人群中筛选到的有肌醇，核糖，半乳糖，葡萄糖， 尿嘧啶和柠檬酸。

Purine base found in DNA and RNA ; pairs with thymine in DNA and with uracil in RNA . Study on the Effects of Epinephrine and Norepinephrine in Mice Thymocytes Apoptosis

DNA和RNA中的嘌呤碱，与DNA中胸腺嘧啶和 尿嘧啶成对。肾上腺素、去甲肾上腺素对小鼠胸腺的影响

Fcy : : Fur gene was fused by two genes Fcy and Fur . Gene Fcy encodes yeast cytosine deaminase and gene Fur encodes uracil phosphoribosyltransferase .

Fcy：：Fur基因由Fcy和Fur两个基因融合而成，其中，Fcy编码酵母菌胞嘧啶脱氨酶，Fur编码 尿嘧啶磷酸核糖转移酶。

Structure resembles uracil with an attached bromine group .

带有溴基团的结构与 尿嘧啶相似。

A TLC Scanning method for the detection and quality control of Uracil is established .

建立了 尿嘧啶的薄层扫描测定方法。

However the activity of cytarabine is decreased by its rapid deamination to the biologically inactive metabolite uracil arabinoside .

然而，阿糖胞苷的半衰期较短，在血及组织中很容易被胞嘧啶脱氨酶迅速脱氨而形成无活性的 尿嘧啶阿拉伯糖苷。

This paper reports the separation and determination of cytosine thymine uracil 1-hydroxyethyl - 5-fluoro uracil 1-propionyloxy uracil and 5-fluoro uracil by capillary zone electrophoresis .

本文报道毛细管区带电泳分离和测定胞嘧啶、胸腺嘧啶、 尿嘧啶、羟乙基氟尿嘧啶、尿嘧啶丙酸和5-氟尿嘧啶。

Study on Catalytic Mechanism of Methionine Synthase V : Synthesis of 5-Amino-6 - ( 3-hydroxy-4-bromobutyl ) uracil

蛋氨酸合成酶催化反应研究Ⅴ：5-氨基-6-（3-羟基-4-溴丁基） 尿嘧啶的合成研究