dna甲基化造句

• dna甲基化    催化DNA甲基化作用的一种修饰酶。 定义：可使DNA甲基化的试剂。 如DNA甲基化、组蛋白修饰等。 叶酸可改变DNA甲基化或减少染色体断裂。 其中两种重要的方式是DNA甲基化和DNA重排。 近年来更注意到氮杂胞苷可搀人DNA甲基化过程。 包括两类酶，即限制性核酸内切酶和DNA甲基化酶。 DNA甲基化状态的改变可导致基因结构和功能异常。 在E.coli中，大多数都有三个位点特...
• dna甲基化酶    包括两类酶，即限制性核酸内切酶和DNA甲基化酶。 在E.coli中，大多数都有三个位点特异性的DNA甲基化酶。 Ⅰ型、Ⅱ型DNA甲基化酶均能以半甲基化DNA为底物，而Ⅲ型DNA甲基化酶则只能以未甲基化的DNA为底物。 2007.1-2008.12，教育部留学回国人员科研启动基金，限制性内切酶Sau3AI.R与DNA甲基化酶Sau3AI.M的结构与功能研究，负责人。 本品可显...
• Ⅱ型dna甲基化酶    Ⅰ型、Ⅱ型DNA甲基化酶均能以半甲基化DNA为底物，而Ⅲ型DNA甲基化酶则只能以未甲基化的DNA为底物。
• dna dependent dna polymerase    Examination of the " pol " genes that encode the DNA dependent DNA polymerase in various groups of viruses suggests a number of possible evolutionary relationships.
• dna-dna hybridization    The 7 isolates were identified based on physiological and biochemical characterization , 16s rdna sequence , g + c mol % and dna - dna hybridization . isolate tl was identified as bacillus...
• dna纯系化    将特定的DNA片断结合于自我增殖的载体上，再纳入寄主细胞使DNA片断增殖，这一过程称为DNA纯系化。
• dna自动化测序    DNA自动化测序包括分析反应和读片过程两个方面。
• dna烷基化    （一）烷化剂：带有活性烷基，能使DNA烷基化。 通过使DNA烷基化，干扰细胞分裂，从而造成B细胞和T细胞绝对数量的下降。 本品的基本作用是使细胞内的DNA烷基化，引起DNA降解和合成受阻，同时也会影响RNA和蛋白质合成。 人们认为MTIC的细胞毒性主要源于其DNA烷基化(甲基化)作用，烷基化主要发生在鸟嘌呤的O6和N7位。 目前，正深入的从分子水平围绕癌基因表达，DNA烷基...
• wizard少量dna纯化系统    Promega公司的Wizard少量DNA纯化系统可快速有效的抽提质粒DNA，整个过程只需15分钟。 Promega公司的Wizard少量DNA纯化系统可快速有效的抽提质粒DNA,整个过程只需15分钟。
• 质粒dna纯化    一般常用Sepharose 2B或Sepharose 4B进行纯化,该方法具有快速,条件温和,重复性好,载体物质可以再利用等优点,因而已广泛用于质粒DNA纯化。
• 氯甲基三甲基硅烷    在紫外线照射下，可氯化成氯甲基三甲基硅烷。
• 16s ribosomal dna    Based on molecular phylogenetic analyses of the cytochrome oxidase gene and 16S ribosomal DNA, " Nyctiphanes " is believed to have evolved during the Miocene. Some of the molecular methods...
• a dna    The gene is a DNA blueprint for a protein called huntingtin. It would be nice to go right to a DNA test. "It's like a DNA print ." The partners are entering an emerging field known as DNA ...
• a taste of dna    The jury got a taste of DNA results last week. The group's 10-minute debut album, " A Taste of DNA " was recorded for Kip Hanrahan's " American Clav?" label, and was later released on Roug...
• a very dna reunion    His most recent short play, " A Very DNA Reunion " was written for the evening of plays " The DNA Trail ", which was conceived by Jamil Khoury and premiered at the historic Chicago Temple ...
• activator dna sequences    Activators generally bind poorly to activator DNA sequences unless an inducer is present.
• amplification of dna    MALBAC offers an unbiased approach to the amplification of DNA from a single cell. TRFLP works by PCR amplification of DNA using primer pairs that have been labeled with fluorescent tags. ...
• amplitaq dna polymerase    Pcr products were purified with qiaquick pcr purification kit , followed by sequencing using the big dye terminator cycle sequencing ready reaction kits used with amplitaq dna polymerase f...
• ancient dna    Blood typing and ancient DNA sampling on Egyptian mummies is scant. Attention was now turned to studies based on ancient DNA from fossil canids. A Paleogenomic Perspective on Evolution and...
• ancient dna analysis    At the molecular level, ancient DNA analysis can be used both to identify the species and to provide dietary information. Ancient DNA analysis of Oase 2 found that 6 %-9 % of the specimen'...
• anonymous dna    The objectives of Wellcome and the Medical Research Council could be achieved more quickly and cheaply by laying down a bank of anonymous DNA samples from a few thousand cases of each dise...
• anti-dna    Presently , the scientist have made out some successes by using biotechnology and molecuology , for example , planting out regeneration shoots , culture suspended cell in ferment tank , sc...
• antisense dna    But antisense DNA has not yet proved successful in treating any condition. Additionally, these nanoparticles can be made to release antisense DNA oligonucleotides when under photo-activati...
• apoptotic dna fragmentation    The enzyme responsible for apoptotic DNA fragmentation is the Caspase-activated DNase. Apoptotic DNA fragmentation is a natural fragmentation that cells perform in apoptosis ( programmed c...
• applied dna sciences    At the time, I was executive vice president at Applied DNA Sciences in Los Angeles. Because Applied DNA Sciences helps other corporations detect and prevent counterfeiting, I worried that ...