斷鏈劑 的英文怎麼說
中文拼音 [duànliànjì]
斷鏈劑
英文
chain breaking agent-
In this study, dna strand breaks in jm109 cells caused by - rays and the protective effect of lexa protein of deinococcus radiodurans have been studied by fluorometric assay of dna unwinding., the results indicated that the rate of dna strand breaks increased with the increase of - rays dose. however, when the concentration of lexa protein from 0. 1 g / ml to 10 g / ml, it still showed no protective effect on dna strand breaks, then lexa protein of deinococcus radiodurans was n ' t radioprotector
本研究採用了dna解旋熒光法檢測由射線所致的dna鏈斷裂的損傷程度以及抗輻射菌lexa蛋白的輻射防護作用，在輻照前加入不同濃度的lexa蛋白，檢測dna鏈的斷裂，結果表明dna鏈的斷裂程度隨著射線輻照劑量的增加而增強，抗輻射菌lexa蛋白對射線所致dna鏈斷裂的修復不起作用，進一步說明抗輻射菌lexa蛋白不起輻射防護作用。Mms, a kind of dna - damaging agent, predominantly methylates ring nitrogens of pyrine, leading to dna double - strand breaks, point mutation and so on
甲磺酸甲酯（ methylmetbanesulfonate ， mms ）是一種能夠損傷dna的烷化劑，主要使dna嘌呤堿基上的o 、 n甲基化，造成dna雙鏈斷裂、點突變。By means of the afm made in shanghai aijian co., ltd. and digital instruments co., ltd ( u. s. ), the dna strand and their fragments were observed successfully. 2. by comparison with afm experiments of three categories of ion beams, the result has been observed in qualitatively : in the uniform dose, the higher let heavy ions have caused more double strand breaks than the lower let radiation
通過afm對實驗結果的觀測，可以定性地得知：在同等劑量條件下，高let值的重粒子與低let的射線相比， dna雙鏈斷裂的數目要多一些；在相同let條件下，隨劑量增加dsb的片段變短、數量增加。Exponential phase cultures of the dr rl strain survive exposure to gamma radiation at doses as high as 5, 000 gy without loss of viability or evidence of dna damage induced mutation. 6000 gy of irradiation will induce approximately 200 dna double - strand breaks in dr chromosomes, but it is still able to reconstruct a functional genome from chromosomal fragments without any mutation
指數生長期的r1菌株即使在5kgy劑量的-射線照射后，其生長能力也未受影響， 6kgy -射線照射后染色體基因組產生約200個的雙鏈斷裂碎片，但是其基因組dna經修復后沒有引起任何的突變。The results showed that : significant increase in dna migration and comet frequency in the spleen, thymus, bone marrow and peripheral lymphocytes were induced after intraperitoneal treatment of mtx at a dose of 1. 25 ~ 5mg / kg. no obvious increase in dna single strand breaks was observed in the liver, kidney, testicle and stomach of the mice with the same treatment. the migration of nuclear dna and comet frequency of spleen, thymus, bone marrow and peripheral lymphocytes in the dose - response study showed a dose - dependent increase
實驗結果：腹腔注射5mg kgmtx后3h可誘發小鼠體內脾細胞、骨髓細胞、胸腺細胞和外周血淋巴細胞的dna單鏈斷裂且隨時間延長損傷程度增大，於12h達到高峰，但未觀察到對肝、腎、胃和睪丸細胞的山窗民科大學碩士學位論文影響;核dna損傷程度隨著用藥劑量的增大而增大。The dna electrochemical sensor was prepared by self - assembling the designed hepatitis b virus dna specific probe on the surface of au electrode together with hoechst 33258 as electro - active indicator
利用自組裝單分子膜法，將人工合成的乙肝病毒單鏈dna片斷作為特異性探針固定在金電極表面，結合電活性指示劑hoechst33258構成dna電化學傳感器。Huctla4 - lg, " one of the most potent in1n1unosuppressive molecules, is a soluble recombinant fusion protein ( molecu1ar weight of approximately 92 kd ) consisting of the extracellular domain of human ctla - 4 and a fragment ( hinge and constant region ) of the fc portion of human iggl. it strongly adheres to the b7 molecule to block the cd28 - mediated costimulatory signal, resulting in inhibition of in vitro and in vivo immune response
可溶性重組融合蛋白huctla4 - ig是一種新穎的免疫抑制劑，分子量約為92kd ，由人ctla - 4分子的胞膜外區與人igg1的fc段（鉸鏈區與恆定區）融合形成，能牢固地與b7分子結合，阻斷cd28介導的共刺激信號，導致免疫反應的抑制。3. dna double strand breaks ( dsbs ) induced by ion beams of gel electrophoresis experiment has shown positive linear with dose, i. e., double strand breaks will increase as the dose increased
分子生物學技術? ?電泳技術分析結果表明，離子輻射造成的dna雙鏈斷裂（ dsb ）與粒子劑量呈線性正相關關系，即隨著粒子劑量值增大， dsb量也逐漸上升。Air dry the chain and then flex it to break any bonds the lube may have created between contacting surfaces
風干鏈條（可能是種特殊的物質，肯定不是金屬，應該是植物纖維之類的東西）再彎曲折斷任何聯結，則在接觸面之間可能產生潤滑劑。In addition, the dna dsbs induced by heavy ions were also analyzed by gel electrophoresis technology, and compared with afm results
此外，使用凝膠電泳技術也對輻射誘發的dna鏈斷裂情況進行了分析，得到了dna分子形態隨劑量的變化規律，並與afm結果進行了比較。分享友人