purine 中文意思是什麼

purine 解釋
n. 名詞 【化學】嘌呤，尿（雜）環；四氮雜茚。

  1. Adenine has a purine ring structure

    腺嘌呤具有嘌呤環的結構。
  2. Adenine a nitrogenous base ( 6 - amino - purine ) found in dna and rna

    腺嘌呤：在dna和rna中發現的含氮的堿基（ 6氨基嘌呤） 。
  3. A purine - sensitive signaling pathway controls axon regeneration in goldfish retinal ganglion cells

    族維生素對體外培養大鼠視網膜神經細胞及節細胞的神經營養作用
  4. Unlilie other cells that also use the salvage pathway for purine biosynhesis, prolfferating b and t cells are solely dependent on the de novo pathway for the generation of wsine. by blocking impdh, b and t cells cannot synthesise the necessary levels of ana and dna to molm a proliferathe response to ags and ndogens

    根據對balb c和c57bl 6小鼠互為供、受者進行移植的結果表明，在排斥發生時間上不同的鼠株移植組合存在差異b 0刀勻， balb兒小鼠的同種應答強度較c57bl 6小鼠為弱。
  5. 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

    嘌呤基的成員包括腺嘌呤和鳥嘌呤，它們是核酸以及某些植物生物堿的成分，如咖啡因和可可堿。
  6. The fumarate ion participates in several important metabolic pathways, e. g. the krebs cycle, purine pathways, and the urea cycle

    延胡索酸分別參與多種重要的代謝途徑，如卡爾文循環、嘌呤途徑和尿素循環。
  7. Purine a simple nitrogenous organic molecule with a double - ring structure ? a 6 - membered pyrimidine ring fused to a 5 - membered imidazole ring

    嘌呤：一種簡單的含氮有機分子，具一個雙環結構? ?六元嘧啶環融合成一個五元咪唑環。
  8. The purine and pyrimidine may be complexed with a sugar to produce a nucleoside.

    嘌呤和嘧啶可以同一個糖復合，產生一個核苷。
  9. Biochemistry ) 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

    2堿基：一種含氮的分子，嘌呤堿或者是嘧啶堿，它們和戊糖還有磷酸一起構成核苷酸，核苷酸是核酸的基本結構單位。
  10. The substitution of a purine for a pyrimidine, or vice versa is a transversion.

    嘌呤為嘧啶取代或嘧啶為嘌呤所取代，叫做顛換。
  11. In other words, replacement of the number 8 carbon by nitrogen in the purine ring does not eliminate activity.

    換句話說，嘌呤環上第8位碳被氮所取代並不喪失活性。
  12. The ability of different adsorbents to absorb purine compounds in beer was studied

    摘要初步研究了多種吸附劑對啤酒中嘌呤類物質的吸附能力。
  13. Sam has three ionizable groups besides the sulfonium pole : the carboxyl and the aminic groups of the amino acidic chain with pk 1. 8 and 7. 8 respectively and the aminic group of the purine with pk 3. 4. in an acid environment sam is positive charged, so it could be adsorbed by weak - acid cation exchange resin

    Sam除具有一個帶正電荷的鋶外，還有三個可離子化的基團： pk _ a分別為1 . 8 、 7 . 8的氨基酸鏈上的羧基和氨基， pk _ a為3 . 4的嘌呤環上的氨基。
  14. 5 - fu is a inhibitor for purine metabolism and able to suppress various animal tumors. it can suppress thymidine synthetase to affect dna synthesis. in addition, it can also affect rna

    化療藥物: 5 - fu為嘧啶類抗代謝藥，對多種動物腫瘤有抑制作用，可抑制胸腺嘧啶脫氧核甘合成鎇，影響dna的生物合成，此外，還可以作用於rna 。
  15. Good luck industry co. ltd, nanjing specializes in the research and productions of purine series, and in the concept of specialization and series, by the strength of doctor mentor of colleage and experts technology

    2 -氯腺嘌呤， 2 -氟- 6 -氨基嘌呤，嘌呤南京祥兆工貿有限公司用「專業化系列化」的理念，依靠大學博導等專家技術力量，專門從事嘌呤系列產品的研發和生產。
  16. Both the frequency and intensity of 1146. 0cm - 1 change largely, etc. discussed and compared the mechanism of these interaction in detail we got some conclusions as following : both zn2 + and cd2 + ions can chelate with po2 - and come into being - po2 - me2 + n7 ( purine ) chelate. as to zn2 + ions, when r2. 0, the quantity of po2 - zn2 + n7 is directly linear with r. when r2. 0, zn2 + ions even can chelate with c at n3 - o2 sites and this chelation will disrupt the h - bond between gc base pairs and make the dna structure unstable. as to cd2 + ions, only when r is within 1. 0 - 1. 5 can this chelation take place and the relation of the quantity of this chelate with r is not easy to conclude

    通過對這些變化進行詳細討論和分析，我們得到了如下的結論： zn ~ （ 2 + ）和cd ~ （ 2 + ）都可以跟dna的磷酸基團螯合，形成- po _ 2 ~ - … me ~ （ 2 + ） … n7 （ g ）螯合物，但是前者的螯合跟離子濃度有很大的關系，在摩爾濃度比小於2 . 0時，螯合物的生成量跟r成正比關系，而後者的螯合跟離子的關系不是很明顯，只有當r處於1 . 0至1 . 5之間時，螯合作用才能進行，並且螯合物的生成量跟r之間沒有很明顯的關系存在。
  17. Many of them love drinking alcohol and eating foods which are rich in purine, such as offal, shellfish and seafood

    他們多有飲酒的習慣，喜歡吃動物內臟貝殼類及海產等，這些食物都含有高成份的嘌呤。
  18. The results showed that activated charcoal and zeolite worked much better than others, and the content of purine compounds was fallen to 85 % and 65 % respectively than control

    結果表明， 100目粒度的粉末活性炭和人造沸石對啤酒中的嘌呤類物質的吸附能力很強，嘌呤類物質的含量較對照分別下降了85 %和65 % 。
  19. Base pairing the bonding relationship between purine and pyrimidine bases in the nucleotides of dna and rna

    堿基配對：在dna和rna的核苷酸中，嘌呤和嘧啶之間相匹配的關系。
  20. In addition to blood formation, vitamin b12 is also involved in the biosynthesis of methyl groups, and thus, has an indirect but strong impact on the synthesis of purine and pyrimidine nucleotides, which are parts of nucleic acids, the building blocks of dna

    除了造血所需，維生素b12也叄與甲基的生合成，因此間接也對嘌呤嘧啶等核酸成分的合成有重大影響。
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