restriction gene 中文意思是什麼

restriction gene 解釋
限制基因
  • restriction : n. 1. 限制，限定。2. 拘束，束縛；自製。3. 【邏輯學】限定。
  • gene : n. 【生物學】基因。 dominant gene顯性基因。
  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. In this paper, first strand cdna of 3abc gene was synthesized using template rna extracted from cells infected with fmdv. the complete 3abc gene about isoobp was amplified by pcr and ligated into pgem - t easy vector. after transforming e. coli dh5 a, ampicillin resistant colonies were isolated and plasmid dna was prepared and analyzed by restriction analysis and pcr. presence of the full length 3abc gene was verified by nucleotide sequence analysis and the plasmid containing the expected sequence was named as pgem - 3abc. comparing the aquired sequence of 3abc with that of reference strains, the homology is more than 99 percent. the pgem - 3abc was digested with sal i and bgl ii and ligated into xho i and bgl ii - digested expression vector ptriex - 4 neo. lt was identified by restriction analysis and pcr and sequencing that this fragment had a 17bp deletion hi the nucleotide sequence 708bp of 3abc gene, which happened to form a terminator codon behind 3ab gene, but it contained the complete open reading frame ( orf ) of 3ab gene. positive clones were selected and induced with lmmol / l isopropyl - d - galactoside ( iptg ), bacteria were detected by sds - page and western blotting after properly treated. the results showed that the 3ab gene expressed successfully in e. coli and 33. 5ku fusion protein can be recognized by the positive bovine serum of fmdv. the amount of target protein is over 26 % of the total bacteria protein by gel thin layer scanning analysis

    擴增產物連接到pgem - teasy載體中，轉化大腸桿菌dh5菌株，篩選氨芐青霉素抗性菌落，提取質粒經酶切鑒定、 pcr分析以及確證性測序證明，所克隆的1500bp左右的片段含有完整的3abc基因，與國外參考序列相比，同源性在99以上。將重組質粒pgem - 3abc和表達載體ptriex - 4neo分別用sal和bgl與xho和bgl消化后，亞克隆3abc基因至原核表達載體ptriex - 4neo中，通過酶切鑒定、 pcr擴增以及序列分析，發現克隆到ptriex - 4neo載體上的片段於3abc基因708bp處出現了17bp的缺失，碰巧在3ab基因后形成一終止密碼子，但3ab基因的閱讀框架完整，選出含有3ab基因完整閱讀框架的陽性克隆，用iptg誘導表達，收集菌液進行sds - page電泳、 westernblotting分析，結果表明， 3ab基因在大腸桿菌中成功表達，其表達產物為分子量33 . 5ku的融合蛋白，並能被口蹄疫病毒陽性血清識別。經薄層掃描分析，表達量占總蛋白量的26以上。
  4. 1. because the taxonomic division is rather complex and has been much disputed and revised, in this part, we will review the classification and phylogeny of families, subfamilies and tribes of anseriformes based on morphology, ethology, osteology, mitochondrial and nuclear dna restriction fragment length polymorphism, single - copy nuclear dna hybridization and the sequences of mitochondrial gene analysis referring to the different definition, classification and phylogenetic relationships of the families, subfamilies and tribes of anseriformes. the controversial questions and deficiency in the systematic studies of anseriformes were pointed out

    具體包括以下幾個部分： 1 、針對雁形目鳥類異常復雜的分類狀況及分類上存在的爭議，根據雁形目鳥類的形態學、行為學、骨骼學、角蛋白、線粒體與核dna酶切片段長度多態、單拷貝核dna - dna雜交及線粒體基因dna序列分析等方面的研究，對雁形目鳥類分類中科、亞科和族的劃分及其相互間的系統發生關系進行綜述，分析系統學研究中存在的不足，提出了雁形目鳥類分類中急需解決的問題。
  5. Linearized the expression vector ppic9k - p including the truncated mutant pokeweed antiviral protein ( pap ) gene by restriction endonuclease sal i and transformed it electrically into pichia pastoris gs115. mut + recombinants were selected by pcr and high yield mut + recombinant was picked out by double film immunoblotting

    本研究將含有n末端信號肽和c末端毒性區缺失的pap基因的表達載體ppic9k - p用sali酶切線性化后，通過電擊轉化整合p . pastorisgs115菌株細胞中。
  6. Based upon the comparison of cyto b gene sequences in 15 deer species downloaded from genbank, a universal primer set l15774 / hsf21 was used as positive control of the template quality, at the meantime, two species specific primer sets df / dr and cf / cr were desgined to identify red deer ( cervus elaphus ), sika deer ( cervus nippori ) and roe deer ( capreolus capreolus ) from other species. a musk deer ( moschus ) specific primer set wf / mr was designed, siberian musk deer ( afoschus moschiferns ) and forest musk desr ( moschus berezovskii ) could be discriminated when restriction endonuclease rsa i was used to cut the pcr products

    經過對來自genbank中的15種鹿類動物的cytob基因序列的比較，用通用引物l15774和hsf21作為模板的質量控制，設計了特異性引物df dr和cf cr來鑒定馬鹿、梅花鹿、狍；設計了麝類特異性引物mf mr ，用限制性內切酶rsa酶切擴增產物來區分原麝和林麝。
  7. We found that sit variant gene ( slt2vha ) was identified in strains e. coli o157 : h7 isolated from patients and dung beetles 2000 in xuzhou city, jiangsu province. the primers used for stx2 variant analysis are shown in tablel. genomic dna restriction fragments digested by pstiwere sonthern - blotted and hybridized with an stx2 - specific dna probe. the probe was prepared fromed a 285 - bp pcr productof the strain 882364 stx2 gene obtained by using the specific primer pair ( tablel )

    2000年在江蘇省徐州市銅山縣腹瀉病患者的糞便標本分離的10株產生志賀毒素的菌株以及從蜣螂腸道分離到的4株產生志賀毒素的大腸桿菌o157 ： h7 ，屬于另兩個pfge型，和1986 、 1987 、 1988年在徐州市腹瀉病患者的糞便標本分離的菌株pfge圖譜不同。
  8. 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。
  9. In addition, gene expression patterns across brain regions show ariable degrees of restriction to single brain structures

    另外，整個腦區域的基因表現型顯示了單一腦結構的區域可變性。
  10. 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。
  11. 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。
  12. Pinpointing the worm gene might open the door to drugs that imitate the effects of calorie restriction and could allow people to live longer without following such a severely restrictive diet

    找到蛔蟲這個基因或許能開啟新藥研發之路，以藥物模仿熱量控制的效果，讓人們不用嚴格節食也可以長壽。
  13. At the same time, he saw the need for a company framework in which to manufacture restriction enzymes and to develop the computing power needed for gene sequencing and predicting the properties of new enzymes

    Roberts博士還明白，要生產限制? ，以及開發電腦程式作基因排序及預測新?特性等工作，必須有一家公司支持。
  14. 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。
  15. 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。
  16. 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 。
  17. 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。
  18. 2. construction of chimeric mtb8. 4 / hil - 12 eukaryotic expression plasmid ( 1 ) construction of pci - neo - mtb8. 4 - linker ( pml ) and pci - neo - ms - linker ( pmsl ) mtb8. 4 - linker and ms - linker gene ( without stop codon ) were pcr amplified by using two oligonucleotides designed to generate nhe i and mlu i restriction sites at the 5 " and 3 " ends of the amplified fragments, respectively

    3 .重組質粒在真核細胞中的表達: pm 、 pms 、 pmi和pmsl重組質粒用lipofectaminatmzo0o脂質體轉染試劑轉染cos一7細胞，進行瞬時表達， 48小時后，用rl 』 - pcr檢測目的基因在mrna水平的表達;用westemblotting檢測hil一12在蛋白質水平的表達。
  19. Recent studies indicate that the mechanism to this process is complicated and needs further exploration with sophisticated microarray approaches. on the bases of this model, we prepared cdna microarray with restriction display ( rd ) technique and studied the gene expression profile changes of sh - sy5y cells after treatment with ra with our self - made microarrays

    本課題根據這一線索，採用馬文麗、鄭文嶺等建立的rd技術制備sh - sy5y細胞基因表達譜晶元，在基因晶元的制備上做了一些研究，同時應用自製的基因表達譜晶元，研究了ra誘導sh - sy5y細胞分化的基因表達變化。
  20. The dissertation consists of five chapters : in chapter one, the recent progress in molecular approaches in systematic studies of macroalgae e. g. dna extraction, restriction endonuclease fragment length polymorphisms ( rflps ), random amplified polymorphic dna ( rapd ), gene sequencing, intersimple sequence jepeats ( issr ), amplified fragment length polymorphisms ( aflp ) and single strand. conformation polymorphisms ( sscp ) were reviewed

    本論文由五部分組成：在第一部分，綜述了大型海藻dna的提取、限制性片段長度多態性（ rflps ） 、隨機擴增多態性dna （ rapd ） 、核酸序列分析、擴增片段長度多態（ aflp ） 、單鏈構象多態（ sscp ）等分子手段在大型海藻系統學研究中應用的一些進展。
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