phage dna 中文意思是什麼
phage dna
解釋
噬菌體-
Culture of mg7 hybridoma cells and detection of antigen - binding affinity of mg7 mab by elisa 2. construction and identification of mg7 recombinant phage antibody library mrna was isolated from cultured mg7 hybridoma cells and converted into cdna ; the variable fragments of heavy and light chain were separately amplified and assembled into scfvs with a specially constructed dna linker by pcr. the scfvs dma was ligated into the phagmid vector pcantabse and the ligated sample was transfered into competent e. co / / tg1 to generate a bacterial form of mg7recombinant phage antibody library ; volume and recombinant ratio of the library were evaluated by means of bacterial colony counts and restriction analysis ( ecor i and hind iii )
Mg _ 7重組噬菌體抗體庫的構建及鑒定從培養的mg _ 7雜交瘤細胞中提取並分離mrna ，反轉錄成cdna ；利用pcr分別擴增mg _ 7單抗的重鏈及輕鏈可變區基因，並通過? dna連接子將二者連接起來形成mg _ 7單鏈抗體基因；將mg _ 7單鏈抗體基因插入pcantab5e ；將連接產物轉化感受態tg1大腸桿菌，制備細菌形式的mg _ 7重組噬菌體抗體庫；通過菌落計數和限制性酶切分析（ ecor和hind ）評估mg _ 7重組噬菌體抗體庫的容量和重組率。 -
Phage display describes a selection technique in which a peptide or protein is expressed as a fussion with a coat protein of bacteriophage, resulting in display of the fused protein on the surface of the virion, while the dna encoding the fussion resides within the virion
自1985年gpsmith首次提出噬菌體展示技術以來，隨著生物技術的發展，噬菌體隨機肽庫已成為研究分子間相互作用的有力工具，特別是在抗原表位研究方面。 -
Thioredoxins, an ubiquitous small proteins with a redox active disulfide bridge in its conserved motif - cp ( g ) pc -, are universally distributed in eucaryote and procaryote and have a molecular mass of approximately 12kda. by its disulfide / dithiol interchange reaction, this protein can transmit the regulatory signals to seleted targets ( enzymes, transcription factors etc ) and plays an important role in many plant physiological processes that includes photosynthesis, dna synthesis, transcription, protein disulfide reduction, protein repair, filamentous phage assembly, cell apoptosis and seeds germinating and so on
該蛋白質中含有保守的- cp （ g ） pc -氨基酸活性基序，該基序中的兩個半胱氨酸殘基可通過巰基二硫鍵的轉換實現其氧化還原狀態的變化和電子氫的傳遞，對細胞中與氧化還原相關的多種生理過程的調節起重要作用。通過同許多酶類、蛋白類、細胞內活性因子相藕連， trx能對光合作用、 dna復制、基因轉錄、細胞凋亡和生長、噬菌體組裝、蛋白質的還原和修復信號傳導等生理過程產生影響和調節。 -
At first, 1. 67 u g per well mcab all was coated on three wells of a plate, and then 1. 5 x 1011 phage virion was diluted and added, after incubating with the target, wash away unbound phage by tbst ( 0. 1 % tween - 20 ), the bound phage was eluted with ph 2. 2 tris - gly buffer and amplified, the specially bound phage was enriched by taking through addition binding / amplification cycles. ln the following cycles, the stringency of panning can be increased by raising the concentration of tbst or decreasing that of mcab all, collecting and titering the washing phage of last time and output phage in each round, the selective ratio and the false positive rate of each round were worked out, the gradually increasing of selective ratio and decreasing of positive rate shows that the panning was effective. after 4 rounds of panning, 11 phage clones were selected after competitive - ellsa, the dna samples of 8 positive clones and 1 negative clone were sequenced and all the foreign peptides inserted was also deduced, a clear consensus binding sequence emerged
在本實驗中，利用隨機12肽庫對抗豬瘟病毒（ classicalswinefeverviruscsfv ）糖蛋白me2的單抗a11進行表位篩選，經過四輪篩選以後，隨機挑取11個克隆作競爭- elisa檢測，結果表明，所挑11個克隆中，有9個克隆能對me2蛋白和a11反應產生抑制作用，抑制率最高可達64 ； dna測序以後經過dnastar軟體分析，發現它們的核心序列為anwralsl ，該核心序列與豬瘟病毒e2蛋白的28 - 35位氨基酸ttwkeysh具有同源性；夾心- elisa檢測和western - blotting試驗均證明所挑陽性克隆能被a11所識別；人工合成含核心序列的多肽經間接elisa試驗證實，也能被a11識別。 -
Constructing cdna expressing library of erythrocytic plasmodium falciparum from hainan : the total rna was obtained by using. triplix kit. a modified oligo ( dt ) primer ( cds ffi pcr primer ) was used in the single - stranded ( ss ) dna synthesis reaction. the ss - dna was reversely transcripted from total rna. double - stranded ( ds ) cdna was amplified by long - distance ( ld ) pcrafter the digestion with proteinase k and sfi i, the cdna with no less than 200bp was collected and purified by glass - milk kitthe library was constructed after the ligation of cdna to tiplex2 phage particle packaged with the packaging extract system in vitro. a high titer and high recombinant ratio of cdna library was constructed
構建惡性瘧原蟲海南株紅內期cdna表達文庫提取紅內期惡性瘧原蟲海南株總rna ，直接以總rna為模板使用cdna文庫構建試劑盒，首先反轉錄合成ss一dna ，再擴增合成ds一dna （ cdna ） ，對擴增產物用蛋白酶k消化及左z丁i酶切，抽提蛋白、去除rna后，用玻璃奶試劑盒純化、回收20obp以上的片斷，經與載體連接再用蛋白包裝物包裝后形成未擴增文庫，最後擴增完成惡性瘧原蟲海南株紅內期cdna表達文庫的構建。 -
By elisa analysis, inhibition of binding of clq with the c ! q receptors on u937 cells and competitive inhibition of binding of clq with aggregated immunoglobulin g b y selected phage clones, and dna sequencing, a number of similar, but not identical, sets of sequences of clq - binding clones were identified. the deduced amino acid sequences of selected 9 peptides are wyegpftlytwp, hwdpfslsayfp, ltqhnspffllp, tsnpfflwypqp, qtpfqlw, npfnwts, spfxlts, fltwldp and fstflyp. they show significant efficiency to inhibit the binding of clq with the clq receptors on u937 cells and / or aggregated immunoglobulin g, which suggest that the selected peptides contain the modeling epitopes of clq receptor to bind the collage - like region or igg to bind the head domain of clq
然後，採用噬菌體肽庫技術，以c1q為釣餌蛋白，從12肽庫和環7肽庫中親和篩選能與c1q結合的噬菌體克隆，經elisa 、 u937細胞配體結合抑制試驗、 aigg競爭抑制試驗及dna測序，獲得了9個具c1q抑制活性克隆的dna序列，其相應的氨基酸序列為： wyegpftlytwp 、 hwdpfslsayfp 、 ltqhnspffllp 、 tsnpfflwypqp 、 qtpfqlw 、 npfnwts 、 spfxlts 、 fltwldp 、 fstflyp ，它們可能模擬c1qr和或igg的c1q結合表位並抑制c1q的活性。 -
Much excitement is therefore currently surrounding a new type of virus - - actually a bacterial virus, usually called a phage - - which is circular and double - stranded and which therefore has only a very low tendency to intercalate into other dna at random
因此，令人興奮的是：目前正在圍繞著一種新型的病毒?實際上是一種細菌病毒，通常稱為噬菌體?它是環狀雙線的，因此它隨機插入其他dna的傾向性很低。 -
In the present paper the application of dna library, phage display random peptide library, phage antibody library, etc. in the research of serodiagnostic reagents and their special values were reviewed
本文綜述了基因文庫、噬菌體展示肽庫及噬菌體抗體庫技術在血清學診斷試劑研製中的應用及其各自的優點。 -
In genetic engneering, nonviral dna can be inserted into a phage, which is then used as a cloning vector
在基因工程中，沒有病毒的dna可以被插入到噬菌體中，用作克隆載體。 -
2 specific epitope analysis in m3m4 loop target to determine the b cell epitope of a monoclonal antibody against the m3 - m4 loop of nmdar1, a random phage displayed dodecapeptide library was screened with the monoclonal antibody mab363 against the m3m4 loop of nmdar1. after four rounds of biopanning, the peptide sequences of positive phage clones were determined and analyzed by dna sequencing
流式細胞儀測定脾細胞cd4 + 、 cds寸淋巴細胞亞群，間接elisa測定血清thl細胞因子幾一2 、 tn下一a和n一y ， th一2細胞因子幾一4 、 il巧和幾一6的水平，同時檢測特異性抗體產生情況。 -
In our previous study, yggg, speb were found in 2. 8kb dna fragment that could bound era probe by using e. coli genome phage expression library to screen era binding protein
根據本課題組篩選era結合蛋白時獲得的噬菌體中的插段包含大腸桿菌的ygggspeb基因，本研究分析了era與ygggspeb的相互作用。
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