The purine and pyrimidine may be complexed with a sugar to produce a nucleoside. 嘌呤和嘧啶可以同一个糖复合,产生一个核苷。
Base pairing The bonding relationship between purine and pyrimidine bases in the nucleotides of DNA and RNA. 碱基配对:在DNA和RNA的核苷酸中,嘌呤和嘧啶之间相匹配的关系。
A purine base found in DNA and RNA; pairs with cytosine. DNA和RNA中的嘌呤碱,与胞核嘧啶成对。
The analytic method ( HPLC) of purine compounds content in beer was developed. 建立了高效液相色谱法测定啤酒中嘌呤类物质含量的分析方法。
The absorption methods of purine compounds in beer by several kinds of absorbents had been developed. 建立了几种吸附剂对啤酒中嘌呤类物质吸附的方法。
Caffeine, a purine alkaloid, is a key component of tea and coffee. 咖啡因是一种嘌呤生物碱,存在于茶和咖啡中。
Determination of rumen microbial-nitrogen of sheep using urinary excretion of purine derivatives was studied. 研究了用绵羊尿中嘌呤衍生物估测瘤胃微生物氮。
This invention discloses a method for immobilizing riboside phosphatase and its application in the course of synthesizing purine nucleosides. 本发明公开了一种固定化核苷磷酸酶微生物及其在合成嘌呤核苷中的应用。
ObjectiveTo investigate the changes of purine nucleotides catabolism on morphine dependent and withdrawal condition and its mechanism. 目的:研究吗啡依赖及戒断状态下嘌呤核苷酸分解代谢的变化及作用机制。
Adenine has a purine ring structure. 腺嘌呤具有嘌呤环的结构。
The invention provides a hair-growing agent composition containing soybean isoflavones aglycone and 6-benzyl amino purine. 一种含有大豆异黄酮苷和6-苄基氨基嘌呤的育发剂组合物。
Adenylosuccinate lyase ( ADSL) is a bifunctional enzyme catalyzing de novo purine synthesis and purine nucleotide recycling. 腺苷酸琥珀酸裂解酶(DSL)催化嘌呤核苷酸的从头合成与嘌呤核苷酸循环的双功能酶。
Ozone also in the role of nuclear material within cells, such as nucleic acids in DNA purine and pyrimidine destruction. 臭氧还作用于细胞内的核物质,如核酸中的嘌呤和嘧啶破坏DNA。
Research Advance in the Determination Methods of Purine Compounds in Beer 啤酒中嘌呤类物质测定方法的研究进展
Members of the purine group include adenine and guanine, which are constituents of the nucleic acids, and certain plant alkaloids, e.g. caffeine and theobromine. 嘌呤基的成员包括腺嘌呤和鸟嘌呤,它们是核酸以及某些植物生物碱的成分,如咖啡因和可可碱。
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。
In the first part, a library of tetra-substituted purine analogues was readily prepared via parallel synthesis. 本论文第一部分采用液相平行合成技术制备了一个全取代嘌呤类似物库。
Determination of Purine Derivatives and Creatinine in Yak's Urine and Plasma by HPLC 高效液相色谱法对牦牛血浆与尿中嘌呤衍生物及肌酐含量的测定
Objective To investigate the effects of heroin on plasma uric acid and purine nucleotides catabolism in rat spleen by testing the activities of adenosine deaminase ( ADA) and xanthine oxidase ( XOD). 目的:研究海洛因依赖对大鼠血浆尿酸含量和脾中腺苷脱氨酶(ADA)、黄嘌呤氧化酶(XOD)的影响。
Studies on Design, Synthesis and Bioactivity of Purine Carboxylic Acid, Piperazine Carboxylic Acid, Ribavirin and Thiosemicarbazones 嘌呤羧酸、哌嗪羧酸、三氮唑核苷和缩氨基硫脲类化合物的设计合成及生物活性研究
Research on the Absorption of Purine Compounds in Beer by Absorbents 吸附剂对啤酒中嘌呤类物质吸附的研究
Synthesis and Properties of Purine Nucleoside and Nucleotide Derivatives; New Nucleoside Analogues from Shikimic Acid 嘌呤核苷(酸)衍生物的合成及其性质研究莽草酸衍生的新型核苷类似物的合成研究
11.What evidence do we have that in the helical form of the DNA molecule the base pairs are composed of one purine and one pyrimidine? 我们有什么证据表明在DNA分子的螺旋构型中,在每一个碱基对中都含有一个嘌呤碱基和一个嘧啶碱基?
Purine: Any of a class of heterocyclic compounds with a two-ring structure composed of carbon and nitrogen atoms. 嘌呤:嘌呤是对由碳、氮原子组成的双环结构的杂环化合物的统称。
Effects of supplemental magnesium propionate on urine purine derivatives and microprotein in Simmental steer 丙酸镁对西门塔尔牛尿嘌呤衍生物和微生物蛋白的影响
Methyl folate is inactive in purine and thymine biosynthesis and one of the main functions of vitamin B12 is the transfer of methyl groups from methyl folate for the synthesis of choline. 甲基叶酸盐在嘌呤和胸腺嘧啶生物合成中是无活性的,而B12的主要功能之一是从甲基叶酸盐传递甲基组提供胆碱合成。
Any of a group of organic compounds derived from or structurally related to purine, including uric acid, caffeine, and the nucleic acid constituents adenine and guanine. 嘌呤衍生物,从嘌呤衍生出来或在结构上与嘌呤有关的一组有机化合物的任一种,包括尿酸、咖啡因及核酸的组成成分腺嘌呤以及乌嘌呤等。
Study of Vitamine C and Purine Base Determination in Tea by High Performance Liquid Chromatography 维生素C和嘌呤碱的高效液相色谱之研究
A nucleotide consisting of one molecule each of a phosphoric acid, a sugar, and either a purine or a pyrimidine base. 单核苷酸磷酸、糖、嘌呤或嘧啶碱基中的一种,它组成的一个分子的苷酸。
The enzyme hypoxanthine-guanine phosphoribosyltransferase ( HPRT) plays an important role in the purine salvage pathways. 次黄嘌呤鸟嘌呤磷酸核糖转移酶(Hprt)参与嘌呤核苷酸的补救合成。