Association between n - acetyltransferase 2 gene polymorphisms and genetic susceptibility to sporadic colorectal adenocarcinoma 乙酰基转移酶2基因多态性与结肠腺癌易感性的关系
Other : the dyewood is known as the suppression histidine decarboxylase , the catecha phenol - o - methyl shift enzyme action 其它:染料木素有抑制组氨酸脱羧酶,儿茶酚- o -甲基转移酶作用
5 , histone acetyltransferase gene ygcns and histone deacetylase gene yrpd3 were cloned and expressed , which has laid down a foundation for studying chromosome remodeling in vitro 5 ，我们克隆并纯化了酵母中的组蛋白乙酞基转移酶基因gcns和去乙酞化酶基因rpd3 。
The complex of glycan structure is synthesized by glycosyltransferases and the differential expression of glycans during development is due to the developmental expression and activity of glycosyltransferases 复杂的糖链结构是由糖基转移酶依此加工合成的，糖基转移酶在发育过程中的表达水平及生物活性决定了某一特定糖链在发育中的表达变化。
Northern analysis revealed that p3galt - l was exclusively expressed in the brain while that p4galt - l was expressed highly in testis , moreover , sperm surface p4galt - l was suggested to play a significant role in signal transduction involving the acrosome reaction in the mouse . in the present study , we mainly detected the developmental expression and function of p - galactosyltransferases in mouse brain and testis . we first characterized the developmental expression of 3galt - l in mouse brain - 1 ， 3 -半乳糖基转移酶- 1 ( 3galt - 1 )主要在脑中表达，而- 1 ， 4 -半乳糖基转移酶- 1在睾丸中表达较高，且精子细胞表面的- 1 ， 4 -半乳糖基转移酶- 1在精卵结合后的顶体反应中发挥了重要的生理作用。
In addition , it was also found that this protein shares limited but significant homology with the sam - dependent methyltransferase of mesorhizobium sp . bnc1 ( 32 % similarity ) , and the similarity of its 303 - 362 region to the 160 - 220 domains of l11 methyltransferases of e . coli ( prma ) is 41 % . it is suggested that methylation of l11 resulted in effects of noea on nodulation of 042bm 发现noea与中慢生根瘤菌( mesorhizobiumsp . ) bnc1可能的sam -依赖性的甲基转移酶相似性为32 ，而其303 - 362区域与大肠杆菌( escherichiacoli )的核糖体50s亚基的l11蛋白甲基转移酶( prma )的160 - 220结构域的相似性达到41 。
A aada2 cassette , encoding aminoglycoside adenylyltransferase , was found in 2 isolates of shigella sonnei , and a two cassettes array of dfra1 , encoding dihydrofolate reductase , and aadala in one isolate of shigella sonnei , and another two cassettes array of dfra1 7 and aada5 in two isolates of shigella sonnei and shigella flexneri y - variant each , and a dfrv cassette in one isolate of shigella flexneri 6 , respectively 对其可变区测序分析，其中2株宋内志贺菌i类整合子均携带1个基因盒，为氨基糖昔腺营酞基转移酶( aminoglycosideadenylyltransferase ) az基因( aa朔2 ) ，编码对链霉素的抗性。
In the presented study , using h7721 human hepatocarcinoma cell line transfected with sense or antisense cdna of gnt - v , the effects of gnt - v on signal transduction an d its mechanism as well as the alteration of gene expression were investigated . we expected to elucidate whether and how the transfected glycosyltransferase modulate the cell signal transduction and gene expression 本文以稳定转染gnt - v正义或反义cdna质粒的h7721人肝癌细胞为材料，从下列四个方面对gnt - v影响信号转导及其机制以及引起基因表达的变化进行了研究，企图阐明糖基转移酶转染是怎样调节细胞信号转导的
By sequencing random - selected clones from the library and using bioinformatics , 54 novel expressed sequence tags ( ests ) were obtained , in which there were 14 full - length cdnas , including peroxiredoxin gene , hmg - box gene , ubiquitin gene , signal recognition particle , acetyltransferase gene and lysozyme gene 有14个克隆包含有完整的开放阅读框，其中包括抗氧化物酶基因prx 、 dna结合蛋白基因、泛素基因、信号识别蛋白基因、溶菌酶基因和乙酰基转移酶基因等具有重要生物学功能的基因。
