腸毒素質粒 的英文怎麼說

中文拼音 [chángdúsùzhílì]
腸毒素質粒 英文
enterotoxin plasmid
  • 腸 : 名詞1. （消化器官的一部分, 通稱腸子） intestines 2. （用腸衣塞肉、魚等製成的食品） sausage 3. （感情; 情緒; 情感） heart
  • 毒 : Ⅰ名詞1 （對生物體有害的性質或物質; 毒物） poison; toxin 2 （毒品） drug; narcotics 3 （姓氏） a s...
  • 素 : Ⅰ形容詞1 （本色; 白色） white 2 （顏色單純） plain; simple; quiet 3 （本來的; 原有的） native Ⅱ名...
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 粒 : Ⅰ名 （小圓珠形或小碎塊形物） small particles; grain; granule; pellet Ⅱ量詞（用於粒狀物）
  • 素質 : 1. （事物本來的性質; 素養） quality 2. [醫學] diathesis3. [心理學] disposition procatarxis; timber
  1. 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。
  2. The interesting gene fragment with ecori and noti were amplified by overlapping pcr, which inserted into vector plasmid ppic9k after degisted by ecori and noti, and the recombinant plasmid was transformed into competent dh5cc. positive clones were screened by pcr from the lb plate with amp. digesting analysis resulte shows that the interesting gene were inserted into the vector ppic9k with correct direction

    目的基因經雙酶切后連接載體ppic9k ，然後導入大腸桿菌dh5中，在含氨卞青霉素（ amp ）的lb板上用pcr反應篩選出陽性菌落，雙酶切結果表明目的基因已插入載體中，且方向正確，測序結果進一步證明人巨細胞病毒重組基因表達質粒成功地克隆了目的基因片段。
  3. Lymphotoxin ( lt ) is a kind of pleiotropic lymphocyte - secreted cytokine which mediates a large variety of inflammatory, immunostimulatory, and antiviral responses. in order to increase the antitumor activity of lymphotoxin and reduce its side effects, the recombinant plasmid pet36b - lt 27 was constructed to express soluble fusion protein cbd - lt 27. the active form of lt 27 could be collected directly with several simple steps by three kind of components on the expressed fusion protein

    本研究通過構建表達n端缺失27個氨基酸的淋巴毒素融合蛋白的重組質粒，在大腸桿菌中實現融合蛋白的可溶及分泌表達，同時利用表達載體上的幾種特殊序列經簡單的分離純化步驟直接獲得大量的有生物活性的淋巴毒素缺失體lt 27 ，為尋找一種高抗腫瘤活性、低臨床毒副作用的生物抗癌藥物進行了有效的探索。
  4. In this study, pichia pastoris system had been utilized for expression of fmdv 2c3abc gene which aimed for establishing a sensitive and specific molecular dignosis method. first, 2c and 3abc genes were amplified individually from p2 and 3abc postive clones and ligated together using pcr method, then this 2c3abc product was cloned into pgem - t easy vector and transformed e. coli dh5a competent cell. a postive recombinant plasmid which contained whole 2c3abc gene had been confirmed by pcr, enzyme digestion and sequencing. after that, the 2c3abc gene was sub - cloned into ppiczaa expression vector and transformed e. coli dh5 a competent cell and selected by zeocin ? antibiotic. the postive recombinant expression vector was linerized and electro - transformed pichia pastoris smd1168 competent cell. a recombinant pichia pastoris had been obtained by zeocin ? antibiotics selection and induced with 0. 5 % methanol for target protein expression. the expression product was analysised by sds - page and western blotting assay. the result sh owed that 2c3abc gene was expressed successfully in pichia pastoris and the product was a 95ku fusion protein which could be recognized by anti - fmdv serum. the amount of target protein was over 15 % of the total bacteria protein by gel thin layer scanning analysis. this research had supplied materials for establishing a fmd diagnosis method to differentiate infected animals from vaccinated animals

    首先，用p2和3abc陽性克隆通過連接pcr方法獲得目的基因並將其克隆到pgem - teasy載體上，並轉化e colidh5a感受態細胞中，經pcr 、酶切以及測序證明得到了完整的2c3abc基因，並與國內外參考序列進行比較分析。然後，將目的基因亞克隆于ppiczaa表達載體並轉化大腸桿菌dh5a ，以zeocin ~ （ tm ）抗性篩選陽性克隆，大量提取重組表達質粒並用pme酶線性化后電轉化入畢赤酵母smd1168感受態細胞，通過zeocin ~ （ tm ）抗生素梯度濃度篩選，獲得重組酵母用0 . 5甲醇誘導表達，通過sds - page電泳、 westernblotting分析，結果表明， 2c3abc基因在畢赤酵母中成功表達，其表達產物為一95ku的融合蛋白，並能被口蹄疫病毒陽性血清識別。
分享友人
分享到 Line

分享到臉書