restriction enzyme 中文意思是什麼

restriction enzyme 解釋
限制酶
  • restriction : n. 1. 限制，限定。2. 拘束，束縛；自製。3. 【邏輯學】限定。
  • enzyme : n. 【化學】酶。 digestive enzyme 消化酶。 induced enzyme 誘導酶。
  1. Two primers, designed according to the conserved regions of ban gene in arabidopsis thaliana, were used to amplify the ban homologous fragments from the genomic dna of brassica napus, b. chinensisl, b. juncea, a. thaliana and other cultural plants of cruciferae. the very similar pcr fragments were obtained from all the amplifications, which implicated that ban may be a conserved gene existing widely in the genomes of cruciferae. pcr fragments were cloned and confirmed by restriction enzyme digestion

    參照擬南芥（ arabidopsisthaliana ） ban基因與cdna設計引物，對甘藍型、白菜型、芥菜型油菜，擬南芥及其它十字花科栽培品種的基因組dna進行pcr擴增，均擴增出與擬南芥ban基因擴增片段大小極其相似的dna片段，提示ban可能廣泛存在於十字花科植物中。
  2. A double - strand cdna fragment of dh ( diapause hormone ) gene was obtained from kt - pcr amplification. the fragment was digested by two restriction enzyme nde 1 / ecor 1 and then was joined with pet - 30a ( + ) plasmid which was digested by nde 1 / ecor 1 too. then the outcome was transformed into escherichia coli bl21

    Pcr產物經nde / ecor雙酶切后，與同樣雙酶切的pet - 30a （ + ）質粒連接並轉化至大腸桿菌（ escherichiacoli ） bl21中，經檢測篩選，成功得到陽性克隆。
  3. Based on the structure and function analysis of hirudin, a potent thrombin inhibitor, and some platelet aggregation inhibitors, which contain the recognition sequence argglyasp as their functional motif, two chimeric antithrombotic molecules were designed by introducing rgd sequence to hirudin cterminus. these chimera genes were constructed by pcr and inserted into the expression vector pet21a, the constructs were confirmed by restriction enzyme digestion and dna sequence analysis. these recombinant plasmids were transformed into

    經限制酶消化和dna序列分析，證明兩種重組質粒與設計完全一致。由於rgd -水蛭素嵌合基因上游連接了金黃色葡萄球菌蛋白a spa的信號肽序列，在iptg誘導下兩種嵌合分子都獲得了分泌表達，表達產物主要集中在細胞周質空間。
  4. On the other hand, - 6 fatty acid desaturase injection assay will be performed to check whether a metabolic pathway is established. methords of research three plasmids vector with expression elements are used to establish a eucaryotic expression vector by restriction enzyme cutting and ligation. this vector is used to pronucleus microinjection

    本實驗以pegfp - n1質粒為骨架載體，用酶切連接的方法構建一個順序含有- actin啟動子、 fad2cdna 、 sv40polya加尾信號的真核表達載體，雙切線性化后回收，使用回收的表達載體經原核顯微注射生產轉基因小鼠。
  5. It was confirmed by restriction enzyme digestion analysis that egfp fusion expression plasmids of scfvs were successfully constructed

    的序列正確，經酶切鑒定證實成功地構建了綠色熒光蛋白基因融合表達載體。
  6. It indicated that the chinese isolates belong to north american group. two pairs of different primers of orf7 were used to identify the genotype of prrsv isolates in china, and then compared with the reference isolates of north american and european serotype and modified live prrsv vaccine. the results further proved that prrsv prevalent in china belongs to b genetype. combining the restriction enzyme digestion patterns obtained from mini, hindi and sactt, we observed 2 distinct rflp patterns

    在此基礎上，擴增各毒株的orf5基因，用mlu ， hinc和sac限制性內切酶切割orf5基因，通過這3種限制性內切酶獲得了各毒株的orf5基因限制性酶切圖譜，經rflp分析表明國內分離毒株與美洲型強毒株有著相同的rflp圖譜，而與疫苗毒的rflp圖譜存在明顯差異，進一步證明國內分離毒株的基因型屬於美洲型的強毒株。
  7. Abstract : the polymorphism of angiotensinogen gene at position 174 was studied in 90 cases of essential hypertension patients and 109 controls by pcr, restriction enzyme analysis and electrophoresis methods. the results showed the distribution of genetypes in hypertension group was significantly different from that of controls group. this suggested there is a correlation between the variant of agt174 and hypertension

    摘要本文採用pcr 、限制性酶切和電泳分型等方法，分別對90例原發性高血壓患者和109例正常人血管緊張素原基因多態位點agt174進行了檢測，結果表明，高血壓組中三種基因型的分佈與對照組顯著不同，提高該位點變異與原發性高血壓的發生相關。
  8. Methods isolates were identified as acinetobacter calcoaceticus by using antibiotic susceptibility test, plasmid profiles, restriction enzyme fingerprinting assay and plasmid elimination method

    方法對我院不動桿菌的感染進行調查，採用藥敏試驗、質粒抽提和限制性核酸內切酶分析法、質粒消除試驗。
  9. It enables a specific gene to be located on a particular restriction enzyme fragment.

    它就能使專一的基因被定位於特定的限制性內切酶切成的片段上。
  10. Therefore, blys, its receptor or related antagonists may find medical utility in the treatment of b cell disorders associated with autoimmunity, neoplasia, or immunodeficiency syndromes. in this study, epo signal peptide sequence and hsblys gene were linked by soe method. the fusion product was cloned into eukaryotic plasmids. pcdna3, pcdna3. 1, pefneo, respectively. meanwhile, the epo signal peptide sequence was mutated so as to form a restriction enzyme cut site : bin i. thus the recombinant plasmid can be used as secreting plasmid expressing other gene

    本實驗通過3 』端互補，進行引物延伸合成epo信號肽序列：信號肽和hsblys基因採用重疊延伸拼接法形成融合基因；融合基因分別插入pcdna3 . 0 、 pcdna3 . 1 、 pefneo真核載體：引物延伸合成信號肽時，利用亮氨酸同義密碼，將信號肽基因的倒數第二個密碼突變，在重組載體上的信號肽序列之後，形成bln酶切位點，使三種載體成為分泌表達載體。
  11. The ha 1 gene was inserted into the bacterial plasmid pgex - 4t - 2 and the recombinant plasmids containing ha 1 gene were identified by restriction enzyme analysis and pcr mathod

    結果表明同源性分別達到98和97 ，並且在ha1切割位點有多個堿性氨基酸的插入序列，證明其為強毒株。
  12. In the research of transgenic fish, green fluorescent protein gene was sub - cloned to downstream of carp p - actin gene promoter that was cloned in pucusa by molecular recombination technology. thus pagfp plasmid was constructed successfully. the recombination was determined by digestion of restriction enzyme and sequencing

    實驗通過分子重組技術，採用定向克隆法將綠色熒光蛋白基因亞克隆到puc118a上鯉魚-肌動蛋白基因啟動子下游，構建成能在真核生物體內表達的表達載體pagfp ，經雙酶酶切法序列鑒定后，回收帶啟動子和目的基因片段。
  13. In this study, we designed a pair of primers based on the sequence of the upstream and downstream of chicken il - 2 gene. about 600 bp chicken il - 2 cdna fragment was cloned from cona - stimulated chicken splenocytes by reverse transcription - polymerase chain reaction ( rt - pcr ) and was subcloned into puc18 vector. recombinant clone was demonstrated by restriction enzyme digestion and dna sequencing. next, we construct recombinant plasmid pproex ? t - il - 2. the cdna of chicken il - 2 gene was subcloned into bamh i / hind iii sites of vector. the recombinant plasmid pproex ? t - il - 2 was transformed into e. coli dh5a and the bacteria was induced with iptg. it was demonstrated by sds - page and western blot that a 18kda protein which was equal to chicken il - 2 protein in molecular weight was expressed in e. coli dh5a. the expression level was up to 30 % of the total bacterial proteins. the purified protein was used to prepare the antibody against chicken il - 2 protein

    經酶切鑒定及dna序列測定，該基因為雞il - 2基因，其序列與sundick等報道的完全一致。在此基礎上，我們把雞il - 2基因亞克隆到大腸桿菌原核表達載體pproex ~ （ tm ） ht中，構建重組表達質粒並進行確證性序列測定，重組質粒測序結果表明將編碼雞il - 2成熟蛋白的基因正確地插入到原核表達載體pproex ~ （ tm ） ht的目的位點。重組質粒轉化受體菌dh5後用iptg於37進行誘導培養， sds - page和westernblot分析顯示，表達的雞il - 2融合蛋白分子量約為18kda ，表達的融合蛋白經薄層掃描發現目的蛋白表達量約占菌體蛋白的30 。
  14. There is no characteristic in the amino acid sequence 63 - 152 and it is the piece that we want to delete to identify the function of the segment. ie180 gene mutants deleted the 64 - 151 amino acid was amplified by muti - pcr and were cloned by pmdist - vector. the clone plasmids were named pjmp1p3p2. the segment corresponding to the sequence of 1 - 1079 amino acid of the genbank sequence amplified by pcr, its clone plasmids was named pjmp1p2. the segment corresponding to the sequence of 454 - 1079 of genbank sequence amplified by pcr and its clone plasmids is named pjmp6p2 - three clone plasmids and pcdna3 were digested by restriction enzyme bamhi and hind, the gene segment of p1p2, p1p3p2, p6p2 were recycled

    本試驗應用dnamis及prosis軟體分別對genbank中登記號為no352564的ie180序列進行了蛋白質序列分析，結果表明其1 - 34段氨基酸序列具有典型helix - turn - helix特徵序列，並且富含酸性氨基酸d及e ，是典型的dna識別序列；富含絲氨酸序列的152 - 409氨基酸序列是一個與激活有關的、潛在的磷酸化位點； 454 - 696氨基酸區域是dna結合域； 64 - 151氨基酸片段沒有明顯的序列特徵；從中可看出ie180蛋白的1 - 1080氨基酸段具有典型的轉錄激活因子結構特徵。
  15. They inhibits the growth of fungi ( filamentous fungi especially ) while are non - toxic to plant cells. the main results were as follows : 1. obtaining of spcema ( signal peptide modified cema ) spcema ( 187bp ) was amplified with two long complementary primers ( p2 and p3 ) and two primers ( pl and p4 ) containing restriction enzyme recognition site

    帶信號肽cema基因的pcr合成以兩條部分重疊長鏈引物p _ 2和p _ 3延伸產物為模板， p _ 1和p _ 4為正、反引物進行pcr擴增，獲得了改造的抗菌肽基因spcema （ 187bp ） 。
  16. The hinf i restriction enzyme digestion gave rise to restriction fragment length polymorphism ( rflp ) of the pcr products. when there were two dna fragments of 363bp and 305bp were produced from a pcr product, the strains were assumed to have a mutation at ser83, when three fragments of 363bp, 206bp and 99bp were produced, the strains were assumed to have no mutation at the 83or 116. the results indicated that certain mutation of ser 83 abolished a hinf i restriction enzyme site and may be detected as a rflp

    本研究重點分析了16株菌對氟喹諾酮類（ fqns ）藥物的耐藥性，結果表明： 16株菌對諾氟沙星、環丙沙星、沙拉沙星、單諾沙星和氧氟沙星等（ nor 、 cip 、 sar 、 dan 、 ofl ）的耐藥率在31 . 3 - 56 . 3之間。
  17. In this article, the advanced structure of hybrid peptide mae is predicted with software. the fused gene mae - intein - cbd is amplified by pcr with the template of plasmid ptyb2, and then it is cloned into expression vector plasmid ppic9k. after verified by restriction enzyme analyzing and sequencing, the vector is transferred into the eukaryotic host ( yeast pichia

    並以已構建的載體ptyb2 - mae為模板，通過pcr擴增出融合基因mae - imein - cbd ，將其克隆于表達質粒ppic9k中，通過鑒定並測序正確后，電轉化真核表達宿主? ?畢赤酵母菌株gs115 ，通過營養缺陷型培養基篩選重組子，再利用g418抗性篩選出整合有多拷貝外源基因的重組子。
  18. Acetylornithine deacetylase is the key enzyme of producting l - methionine. we mainly do research work on the construction of acetylornithine deacetylase gene - engineering strain and characteristic of proteinase. in order to get high expression deacetylase strain, we obtain the gene by pcr arge gene. the product ( 2800bp ) was cloned into puc19 plasmid and confirmed with blue / white dot screening > restriction enzyme analysis and pcr. then taking the nucleotide sequencing compared with the sequence at blast of u. s. a. we constructed a high expression of gene - engineering strain - pxj 128 which containing the arge gene on the high expressing system of pxji18 with activity of acetylornithine deacetylase above 20000u / g

    為了獲得高效表達的脫乙酰鳥氨酸酶工程菌株，在工程菌技術改造及其固定化研究做了進一步的研究和探討。我們採用基因工程技術，通過pcr技術擴增出了酰化酶關鍵酶基因?脫乙酰鳥氨酸酶基因arge ，將其克隆到puc19載體中，經酶切鑒定、 pcr鑒定篩選出重組陽性質粒，並測序鑒定，通過美國blast程序進行了基因數據庫相似性比較分析。
  19. First, a pair of pcr primers was designed to isolate fmdv - vp1 gene according to the published fmdv - vp1 sequence. after pcr of dna isolated from the tissues, the fmdv - vp1 gene was cloned into cloning vector. positive clones were analysed with restriction enzyme digestions and further identified with sequence analysis

    首先，根據已知的fmdv基因序列，設計特異性引物，擴增出fmdv - vp1基因，將克隆到的vp1基因連接到測序載體上後用dna測序儀對該序列進行測序。
  20. The point mutation in vp2 residue 297 of canine parvovirus from ser to ala acid was examined, which causes a alteration of the restriction enzyme aiu i site

    根據vp2位點297的改變引起限制性內切酶aiu酶切位點的變化，建立pcr依賴性限制性片段長度多態性分析（ prfl ）方法，檢測vp2位點297的變異。
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