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purine n.【化學】嘌呤,尿(雜)環;四氮雜茚。

purine nucleotide

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。

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,在摩爾濃度比小于2 . 0時,螯合物的生成量跟r成正比關系,而后者的螯合跟離子的關系不是很明顯,只有當r處于1 . 0至1 . 5之間時,螯合作用才能進行,并且螯合物的生成量跟r之間沒有很明顯的關系存在。

Certain foods such as offal , shellfish , and alcohol are high in purine which are metabolized to uric acid in the body . over consumption in such foods increases the chance of having gout . can gout be cured 若在日常飲食中,喜好一些含有高成份嘌呤的食物,例如動物內臟、貝殼類海產、酒類等,這些嘌呤在我們體內經過新陳代謝后,就會變成尿酸,再加上暴飲暴食,便很容易誘發這個痛癥。

Jintan haixiang chemical industry co . , ltd . mainly engages in the research and production of fine chemicals , such as medicine intermediates , pesticide intermediates and electron liquid crystal materials . we are especially good at the r & d of ketone , pyrimidine , and purine 金壇市海翔化工有限公司主要從事醫藥中間體、農藥中間體、電子液晶材料等精細化工產品的開發和生產。

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。

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也叁與甲基的生合成,因此間接也對嘌呤嘧啶等核酸成分的合成有重大影響。

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镅,影響dna的生物合成,此外,還可以作用于rna 。

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 % 。

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。

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。

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。

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。

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。

In dna , four different bases are found . two of these , adenine and guanine , are double - ring structures called purines 在dna中,有四種不同的堿基,其中的兩個為腺嘌呤和鳥嘌呤,即稱為嘌呤的雙環結構。

In dna , four different bases are found . two of these , adenine and guanine , are double - ring structures called purines 在dna中,有四種不同的基,其中的兩個為腺嘌呤和鳥嘌呤,即稱為嘌呤的雙環結構。

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。

It is important in the growth and reproduction of cells , participating in the synthesis of purines and thymine 在細胞生長和再生中也很重要,參與了嘌呤和嘧啶的合成。

The most abundant bases are cytosine , thiamine , and uracil ( pyrimidines ) and adenine and guanine ( purines ) 最豐富的堿基是胞嘧啶,胸腺嘧啶,尿嘧啶,腺嘌呤和鳥嘌呤。

It also donates an amino group in synthesis reactions , e . g . the synthesis of purines and pyrimidines 還可參加合成反應生成一系列的氨基酸,例如嘌呤和嘧啶的合成。