为了利用这种基质金属蛋白酶,钱博士将他的荧光染料和一些正电荷一同连接在一个小的发夹形状的蛋白质分子的一端。
To make use of the MMPs, Dr. Tsien attaches his fluorescent dye, along with some positive charges, to one side of a small hairpin-shaped protein molecule.
为了利用这种基质金属蛋白酶,钱博士将他的荧光染料和一些正电荷一同连接在一个小的发夹形状的蛋白质分子的一端。
To make use of the MMPs Dr Tsien attaches his fluorescent dye, along with some positive charges, to one side of a small hairpin-shaped protein molecule.
当预期的可同时植入的基因出现时,承认它的重组酶,会把它固定在DNA的两端,开始修补DNA(见图)。
When the intended gene, which would have been inserted at the same time, comes along, the recombinase recognises it, and binds the DNA to the ends, repairing the break (see diagram).
但是还没有人研究为什么老鼠表达端粒酶而人却不。事实上,在动物界端区酶的活性几乎没有被载入。
But no one has looked into why mice express telomerase and humans don't. In fact, telomerase activity has been barely catalogued in the animal kingdom.
她调查了全球15种啮齿动物,以检测各种类所表达的端区酶活性的级别,并观察是否存在相关性。
She investigated 15 rodents from across the globe to determine what level of telomerase activity each species expressed, to see if there were some correlation she could find.
复制DNA的酶在细胞分裂时不是100%有效,少量dna在复制过程中从每一串的端部丢失。
The enzymes that replicate DNA when a cell divides are not 100% efficient, and a small amount of DNA gets lost from the end of each strand during replication.
该谷氨酰胺合成酶是自氨基端第405位氨基酸残基突变为苯丙氨酸的谷氨酸棒杆菌的谷氨酰胺合成酶。
The said glutamine synthetase is prepared by abrupt change of the 405th amino acid residue of amino end to phenylalanine corynebacterium glutamicum .
将位于多巴胺运输器基因3'端未转译区段的40 -碱基多形性重复序列予以纯化、经聚合酶链锁反应放大。
A 40-base polymorphic repeat sequence located in the 3 '-untranslated region of the DAT gene was purified and amplified by polymerase chain reaction (PCR).
结论EB病毒LMP1可活化端粒酶活性,这一功能与LMP1羧基端胞浆区,特别是其功能域ctar1和CTAR2密切相关。
Conclusion EBV LMP1 is able to activate telomerase and this function is related to the carboxyl terminus region of LMP1, specially CTAR1 domain and CTAR2 domain.
但是,由于PCR产物的酶切效率很低,致使片段两端不能够被完全切开,最终使得PCR产物的克隆效率较低。
But, the efficency of cloning of PCR product is very poor because of the insufficiently cutting of two points of PCR fragment due to the low cutting efficiency of PCR product.
她调查了全球15种啮齿动物,以检测各种类所表达的端区酶活性的级别,并观察是否存在相关性。
She investigated15 rodents from across the globe to determine what level of telomerase activity each species expressed, to see if there were some correlation she could find.
三种不同类型的DGAT蛋白序列相似性比较低,但是均含有一个酰基转移酶保守结构域,而同一类型的DGAT蛋白C端高度保守。
The DGAT proteins of three different types share lower similarity, but all of them have an acyltransferase domain, while the DGAT proteins of the same type appear to be conserved in the C-terminal.
目的探讨EB病毒LMP1羧基端胞浆区与端粒酶活化的关系。
Objective To study the relationship between carboxyl terminus region of EBV LMP1 and telomerase activation.
这些酶被用来在特定的DNA的序列中把原生质切断,留下的一端可以被科学家们自由地重新连接。
These enzymes are used to "snip apart" plasmids at very specific DNA sequences, leaving free ends that can be rejoined as the scientist chooses.
这些酶被用来在特定的DNA的序列中把原生质切断,留下的一端可以被科学家们自由地重新连接。
These enzymes are used to "snip apart" plasmids at very specific DNA sequences, leaving free ends that can be rejoined as the scientist chooses.
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