purine

n. [有化] 嘌呤（四氮杂茚，尿杂环）；咖啡碱

n.

嘌呤，咖啡碱；

英英释义

purine[ 'pjuri:n, -rin ]

n.

any of several bases that are derivatives of purine

a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances

双语例句

用作名词(n.)

Adenine has a purine ring structure.
腺嘌呤具有嘌呤环的结构。

Purine rich foods are on the top of the table.
嘌呤丰富的食物是表格上方的。

权威例句

purine (n.)

1898, from German purin (Fischer), said to be from Latin purum, neuter of purus "clean, pure" (see pure) + Modern Latin uricum "uric acid" + chemical suffix -ine (2).

1. Base pairing The bonding relationship between purine and pyrimidine bases in the nucleotides of DNA and RNA.

在DNA和RNA的核苷酸中，嘌呤和嘧啶之间相匹配的关系。

2. But more interestingly, the researchers found three nucleobase-related molecules: purine, 2, 6-diaminopurine, and 6, 8-diaminopurine.

但更有趣的是，研究人员发现了三个碱基相关的分子：嘌呤，2,6-，6,8 – 二 氨基嘌呤。

3. 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。

4. The stability of these triple helixes is so high that homopyrimidine PNA targeted to purine tracts of dsDNA invades the duplex by displacing one of the DNA strands.

这种三螺旋体的稳定性极高，以至于在同型嘧啶PNA靶向双链DNA嘌呤道时，能取代其中一条DNA链侵入双螺旋。

5. The sensitivity of this method tall, operation is handy, fast, the purine in can satisfying beer kind corporeal Gao Lingmin is analysed.

该方法的灵敏度高、操作简便、快速，能够满足啤酒中嘌呤类物质的高灵敏分析。

6. Thus on top of the dependence on G–C content, the stability of PNA–DNA duplexes also depends on the purine fraction of the PNA strand.

因此，肽核酸-DNA二聚体的稳定性除了依赖G-C配对的含量外，还与肽核酸链上的嘌呤含量有关。

7. The substitution of a purine for a pyrimidine, or vice versa is a transversion .

嘌呤为嘧啶取代或嘧啶为嘌呤所取代，叫做颠换。

8. A nitrogenous molecule, either a PYRIMIDINE or a PURINE, that combines with a pentose sugar and phosphoric acid to form a nucleotide, the fundamental unit of nucleic acids.

一种含氮的分子，嘌呤碱或者是嘧啶碱，它们和戊糖还有磷酸一起构成核苷酸，核苷酸是核酸的基本结构单位。

9. The effects of high intensity exercise on purine nucleotide metabolism of rats were studied in this paper. Simultaneously, the feasibility of the motor model was discussed.

观察大强度运动对大鼠嘌呤核苷酸代谢的影响，同时分析所建运动模型的可行性。

10. Being as an important hereditary substance, DNA has the double helix, the two bonds composing the double helix are mating and connecting with each other through the purine and the pyrimidine.

作为重要的遗传物质，DNA为双螺旋结构，组成双螺旋的两条链由嘌呤和嘧啶通过氢键配对联系。

11. Uric acid as the end-product of purine metabolism in human body is excreted through kidney.

尿酸是人体嘌呤碱基分解代谢终产物，经肾脏排泄。

12. The effects of high intensity exercise on purine nucleotide metabolism of rats were studied in this paper.

观察大强度运动对大鼠血浆嘌呤核苷酸代谢的影响。

13. A synthetic purine nucleoside analog, C8H10N5O3, derived from guanine and used topically in the treatment of herpes simplex infections, especially such infections of the genitals.

合成嘌呤核□类似物一种合成嘌呤核□类似物，化学式为C8H10N5O3，来源于鸟嘌呤，部分用于□疹单一性感染的治疗，尤指用于对生殖器感染的治疗。

14. Mustard of acerbity nitrogen of third of purine of Zun of azotic mustard, sulfur, benzene fight tumor medicaments to be able to cause temporary iron bead young cell anaemia is changed.

氮芥、硫唑嘌呤、苯丙酸氮芥等抗肿瘤药物能引起暂时的铁粒幼细胞贫血改变。

15. Conclusion Morphine may affect purine nucleotide metabolism of nerve cells, increase the adenylate and adenosine levels, which may be one of the mechanism of morphine dependence and tolerance.

结论：吗啡影响神经细胞嘌呤核苷酸代谢，使细胞内腺苷酸及腺苷水平增高，这可能是吗啡依赖和耐受形成的机理之一。

16. Gout is caused by abnormal metabolism of purine.

痛风是由于嘌呤代谢异常引起的疾病。

17. Purine derivative is an important pharmaceutical intermediate of extensive funtion.

嘌呤衍生物是一类重要的医药中间体。

18. Objective: To investigate the effect of morphine on purine nucleotide catabolism and the mechanism.

目的：研究吗啡依赖及戒断对嘌呤核苷酸分解代谢的影响与作用机制。

19. 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。

20. 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。

21. Purine nucleotides; Heroin; Pain threshold.

嘌呤核苷酸；海洛因；痛阈。

22. CONCLUSION ATP produces contractile responses mainly via purine and pyrimidine(P)2 receptors and relaxant responses partially via P1 receptors in longitudinal muscle strips of the rat proximal colon.

结论在大鼠离体近端结肠纵行肌，ATP主要通过嘌呤嘧啶（P）2受体介导收缩反应，部分通过P1受体介导舒张反应。

23. Analyse composition of purine type Alkaloid in Baimao Tea from Nankun mountain by using HPLC.

采用高效液相色谱法分析南昆山白毛茶嘌呤类生物碱成分。

24. Objective To study the effects E. coli purine nucleoside phosphorylase suicide gene on human gastric cancer MKN-45 cells as well as the bystander effect.

目的：探讨大肠杆菌嘌呤核苷磷酸化酶自杀基因对胃癌细胞MKN-45的抑制及杀伤作用，并证实旁观者效应。

25. Some functions of Purine Nucleotide circulation in skeletal muscle are of great importance.

在骨骼肌内，嘌呤核苷酸循环有几个方面的作用显得尤其重要。

26. Uric acid (UA) is converted from xanthine, the degradation product of purine nucleotides, by the enzyme xanthine oxidase (XO).

尿酸，是嘌呤核苷酸经黄嘌呤氧化酶作用后的黄嘌呤核苷酸，再代谢所得之产物。

27. The synthesis processes of purine, pyrimidine, and thymidylic acid in organism and the metabolism processes of cells are always accompanied by one carbon unit transfer reaction.

生物体内嘌呤、嘧啶、胸苷酸等的合成以及细胞的代谢过程都伴随有一碳单元转移反应。

28. Objective:To investigate the effect of purine nucleotides on pain threshold and acute withdrawal symptoms in morphine dependent rats.

目的：探讨嘌呤核苷酸对吗啡依赖大鼠痛阈及急性戒断症状的影响。

29. ADA is key enzyme during purine nucleotide catabolism. In heroine dependent group, the concentration of plasma ADA and tissues ADA showed increased.

以上结果表明，海洛因可以诱导大鼠组织嘌呤核苷酸分解代谢酶的基因表达。

30. ADA is key enzyme during purine nucleotide catabolism. In heroine dependent group, the concentration of plasma ADA and tissues ADA showed increased.

以上结果表明，海洛因可以诱导大鼠组织嘌呤核苷酸分解代谢酶的基因表达。

31. A purine analogue, C5H4N4S, that acts as an antimetabolite by interfering with purine synthesis, used primarily in the treatment of acute leukemia.

颈基嘌呤一种含硫类似物，化学式为C5H4N4S，是一种能干扰嘌呤的合成的抗代谢药，主要用于治疗急性白血病

-- 来源 -- 英汉 - 短句参考

32. The substitution of a purine for a pyrimidine, or vice versa is a transversion.

嘌呤为嘧啶取代或嘧啶为嘌呤所取代，叫做颠换。

-- 来源 -- 英汉 - 辞典例句

33. In other words, replacement of the number 8 carbon by nitrogen in the purine ring does not eliminate activity.

换句话说，嘌呤环上第8位碳被氮所取代并不丧失活性。

-- 来源 -- 英汉 - 辞典例句

34. a drug (trade name Purinethol) that interferes with the metabolism of purine and is used to treat acute lymphocytic leukemia.

用来干扰嘌呤新城代谢和严重的白血病的药物（商标是巯基嘌呤）。

-- 来源 -- 汉英 - 翻译参考

35. 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。

-- 来源 -- 英汉 - 辞典例句

36. disturbance of purine metabolism

嘌呤代谢紊乱

-- 来源 -- 英汉 - 短句参考

37. any of several bases that are derivatives of purine.

从嘌呤衍生出来的许多碱。

-- 来源 -- 汉英 - 翻译参考

38. 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。

-- 来源 --

39. pyrimidine and purine bases

嘧啶和嘌呤碱基

-- 来源 -- 英汉 - 短句参考

40. 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

-- 来源 -- 英汉 - 短句参考