The genetic information of all living cells is stored in the DNA composed of the four canonical bases adenine (a), cytosine (c), guanine (g) and thymine (t).

AIM: To study the effects of down-regulation of guanine nucleotide exchange protein 100 (GEP100) on the invasive ability of pancreatic cancer cell AsPC-1 in vitro.

目的：研究鸟嘌呤核苷酸交换蛋白100 (GEP100)基因沉默对胰腺癌细胞体外侵袭能力的影响。

Chemical synthesis of protecting agent for deoxyribonucleoside phosphate and study on its protecting action for phosphate group

脱氧核苷磷酸基团保护剂的合成与磷酸基团的保护研究

The Km value for the 4 deoxyribonucleoside triphosphates was 5 × 10-5M.

对4种脱氧核苷三磷酸底物的Km值是5×10~（-5）M。

Guanine nucleotide Exchange Factor;

鸟苷酸交换因子；

AIM: To study the alteration of the content of guanine nucleotide binding protein α subunits ( G α protein) in myocardium during shock, and the effect of naloxone ( NAL) on the G protein.

目的：研究失血致低血容量性休克大鼠心脏组织鸟苷酸结合蛋白（Guanine nucleotide-binding protein，G蛋白）含量的变化及纳络酮对其影响。

Small GTPase proteins play a pivotal role as important molecular switches, containing four guanine nucleotide ( GTP/ GDP) binding ( GNB) domains and an effectors domain.

小GTPase蛋白作为重要的分子开关其结构域主要包括4个鸟苷酸（GTP/GDP）结合域及1个效应区。

Small GTPases are monomeric guanine nucleotide binding proteins coupled to the α-subunit of heterotrimeric G proteins. All small GTPases belong to Ras superfamily.

小G蛋白是和异三聚体G蛋白α亚基偶联的单体鸟苷酸结合蛋白，所有的小G蛋白从属于Ras超家族。

The subunit α_0 of guanine nucleotide-binding protein, in the areas of rat brain and spinal cord was localized by immunohistochemical methods.

本研究应用兔抗鸟核苷酸调节蛋白α0亚单位（简称α0）多克隆血清（抗体），采用免疫组织化学方法对大鼠脑和脊髓内一些结构中的α0作了定位观察。

The Value of Determining Guanine Deaminase in Diagnosis of Hepatic Diseases

鸟嘌呤脱氨酶检测对肝脏疾病的诊断价值

Using ACV as the material to synthesize acyclovir's derivatives [ 9-( 2-single acidated butanedioic acid ethoxy methyl) guanine].

以阿昔洛韦为原料合成了阿昔洛韦衍生物[9-（2-丁二酸单酰乙氧基甲基）鸟嘌呤]。

In this paper, a kind of BP ANN was designed to study on the process condition of N ( 2) acetyl 9 [ ( 2 acetoxylethoxyl) methyl] guanine preparation.

本文将BP人工神经网络应用于对N（2）-乙酰基-9-[（2-乙酰氧乙氧基）甲基]鸟嘌呤的制备工艺条件研究，获得了较好的工艺参数与收率之间的映射关系。

The enzyme hypoxanthine-guanine phosphoribosyltransferase ( HPRT) plays an important role in the purine salvage pathways. Evaluation of Cell-mediated Protective Immunity to Hypoxanthine Guanine Xanthine Phosphoribosyl Transferase ( HGXPRT) of Plasmodium Falciparum

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。恶性疟原虫次黄嘌呤鸟嘌呤黄嘌呤磷酸核糖转移酶细胞免疫保护作用的研究

The effects of riboflavin, niacinamide and zinc on the mutagenicity of methylbenzylnitrosamine ( MBNA) were examined with the mutagenesis assay at hypoxanthine-guanine phosphoribosyltransferase ( HGPRT) locus in Chinese ovary ( CHO) cells ( CHO/ HGPRT system).

采用CHO细胞HGPRT位点突变测定系统观察了核黄素、尼克酰胺和锌等微量营养素对甲基苄基亚硝胺（MBNA）致细胞突变作用的影响。

RT-PCR was used to examine the gene transcripts concentrations of adenosine kinase ( AK) and hypoxanthine-guanine phosphoribosyltransferase ( HGPRT) in each group.

应用RT-PCR法检测各实验组腺苷激酶（AK）和次黄嘌呤-鸟嘌呤磷酸核糖转移酶（HGPRT）基因转录产物含量的变化。

Progress in functional research of nicotinamide phosphoribosyltransferase

尼克酰胺磷酸核糖转移酶功能研究进展

Optimization of Fermentation Medium of Microbial Transglutaminase; Progress in functional research of nicotinamide phosphoribosyltransferase

微生物谷氨酰胺转胺酶发酵培养基的优化尼克酰胺磷酸核糖转移酶功能研究进展

Cloning and Expression of Hypoxanthine-xanthine-guanine Phosphoribosyltransferase Gene of Toxoplasma Gondii

弓形虫次黄嘌呤-黄嘌呤-鸟嘌呤磷酸核糖转移酶基因的克隆与原核表达

Fcy:: Fur gene was fused by two genes, Fcy and Fur. Gene Fcy encodes yeast cytosine deaminase and gene Fur encodes uracil phosphoribosyltransferase.

Fcy：：Fur基因由Fcy和Fur两个基因融合而成，其中，Fcy编码酵母菌胞嘧啶脱氨酶，Fur编码尿嘧啶磷酸核糖转移酶。

In 1965, military historian and amateur diver Alexander McKee, in conjunction with the British Sub-Aqua Club, initiated a project called 'Solent Ships'.

1965年，军事历史学家和业余潜水员亚历山大·麦基与英国潜水俱乐部合作，发起了一个名为“索伦特船”的项目。

A tureen of soup carrot, with seaweed and Bulgar is brought in by a waiter in a white coat.

穿白色外套的服务员给我们端上来一大碗汤，是加了海带与小麦片（bulgar）的胡萝卜汤。