脱氨基

脱氨基被认为是引起细胞突变的主要因素，如果这些脱氨基的产物不被修复，将引起转换（transition）突变。

Deamination of bases is regarded as the major factor for mutation in DNA and it will induce transition mutation if the products of deamination have not heen repaired .

IaaM和ACC脱氨基酶基因的表达与植物重金属富积效果研究

The Research of Heavy Metal Accumulation in Plants by Combining iaaM and ACC Deaminase Expression

目的：将人胞苷脱氨基酶基因（CD）导入小鼠骨髓细胞后，观察小鼠对大剂量阿糖胞苷（Ara&C）的耐受性，探讨骨髓耐受联合化疗的可行性。

AIM : To observe the tolerance to high-dose cytarabine ( Ara-C ) in mice after the cytidine deaminase ( CD ) gene is trans-fected into mouse bone marrow cells , and to explore the feasibility of chemotherapy combined with the tolerance of myelosuppression .

方法：以逆转录病毒为载体，将双突变的二氢叶酸还原酶基因（DH-FR）和胞苷脱氨基酶基因（CD）转染小鼠骨髓细胞，观察该细胞耐MTX及Ara-C的CFU-GM生成情况；

METHODS : Double-mutant dihydrofolate reductase-cytidine deaminase gene was transferred into mouse bone marrow cells by retroviral vector . Colony-forming unit granulocyte-macrophage ( CFU-GM ) to MTX and Ara-C was gotten by cell culture .

转化矮牵牛和烟草对重金属抗性及组织中重金属含量结果分析表明，iaaM和ACC脱氨基酶基因已经完全整合到矮牵牛和烟草的基因组中并能正确表达。

Heavy metal resistance and accumulation and PCR result indicated that the iaaM gene and ACC deaminase gene were indeed integrated into the tobacco and Petunia Hybrida genome .

水培时，通过转化烟草对重金属抗性和组织中重金属含量的分析发现，共同表达iaaM和ACC脱氨基酶基因的烟草对重金属铜、镉和铅均有较高的耐受性，组织中有较高的重金属含量。

The experiment of heavy metal resistance and accumulation in nutrient solution suggested , transformant tobacco with iaaM and ACC deaminase gene can tolerate and concentrate high levels of copper , cadmium and lead .

几种氨肽酶把肽水解成氨基酸。氨基酸可以被氧化脱氨基作用分解。

Several aminopeptidases complete the hydrolysis of peptides into amino acids .

胞嘧啶脱氨基酶/5-氟胞嘧啶系统对人胰腺癌细胞恶性增殖的抑制作用

Cytosine Diaminase / 5-Flurocytosine Mediated Inhibiting Effect on the Growth of Human Pancreatic Carcinoma Cells

大肠杆菌胞嘧啶脱氨基酶基因联合5-氟胞嘧啶治疗胃癌的实验研究

A study on the treatment of gastric cancer by CD gene combined with 5-FC in vitro and in vivo

以2,6二氯4硝基苯胺为原料经重氮化和脱氨基反应制得3,5二氯硝基苯，收率在60%以上。

Dichloronitrobenzene was synthesized from 2,6-dichloro-4-nitroaniline through diazo-reaction and denitrogenation reaction . The yield of 3,5-dichloronitrobenzene is above 60 % .

目的比较1-脱氨基-1-单羟基-（2-氧-甲基酪氨酸）-催产素（卡贝缩宫素）与缩宫素控制剖宫产术后出血的效果及安全性。

Objective : To investigate the effectiveness and safety of carbetocin and oxytocin for the prevention of postpartum hemorrhage after selective caesarean section .

剧烈运动中，氨主要的来源是单磷酸腺苷的脱氨基，而在次最大强度运动中支链氨基酸的分解占重要地位。

During intense exercise , the primary source of ammonia is adenosine monophosphate deamination while catabolism of branched-chain ammo acids becomes important during submaximal exercise .

精氨酸脱亚氨基酶（ADI）催化精氨酸亚胺水解，产生瓜氨酸和氨，是酶法生产瓜氨酸的催化剂。

Arginine deiminase ( ADI ) is an enzyme which can catalyze the imine hydrolysis of arginine to produce citrulline and ammonia .

结果：去势大鼠肝微粒体细胞色素P450及细胞色素b5含量显著降低，NADPH细胞色素C还原酶、苄非他明N脱甲基酶、氨基比林N脱甲基酶活性也明显降低。

RESULTS : The activities of microsomal NADPH-Cyt C reductase , benzphetamine N-demethylase , aminopyrine N-demethylase , glutathione S-transferase , and the contents of microsomal cytochrome P450 , cytochrome b_5 and homogenate glutathione remarkable decreased in the liver of castrated female rats .

阐述了氨氮富营养化所带来的危害及废水生物脱氮原理的3个步骤：脱氨基作用、硝化反应和反硝化反应；

The hazards of eutrophication caused by ammonia and nitrogen , the theory of removal of nitrogen in wastewater by biological methods , which include three steps : ammonia stripping , nitrification and denitrification , have been interpreted .