毒物載體 的英文怎麼說
中文拼音 [dúwùzǎitǐ]
毒物載體
英文
toxophoric- 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...
- 物 : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
- 載 : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
- 體 : 體構詞成分。
- 毒物 : toxic; toxicant; poison; poisonous substance
- 載體 : [化學] carrier; supporter; isotopic carrier
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Newcastle disease virus ( ndv ) strain 695, a thermostable nature avirulent strain, were replicated in embryonated chicken eggsand its rna was extracted from allantoic fluid. referred to the reported sequence of f gene, a pair of primers were designed and synthesized. f gene of ndv b95 strain was amplified by rt - pcr, the pcr products were checked by agrose gel electrophoresis and purified by agrose gel fracion method
利用從國外引進的新城疫熱穩定性天然弱毒b _ ( 95 )株接種spf雞胚繁殖病毒,經處理后提取病毒的基因組rna ,參考國內外發表的ndv融合蛋白基因序列,設計一對特異性引物,經反轉錄聚合酶鏈式反應( rt - pcr )擴增出約1700bp大小的特異性片段,將此片段回收純化后,利用t - a克隆技術將其克隆到pgem - t - easy克隆載體中,再轉化大腸桿菌jm109感受態細胞,轉化后經分子量比較、 pcr鑒定和酶切分析篩選陽性克隆。The total rna was isolated from pokeweed ( phytolacca americana ) leaves using the method of guanidine isothiocyante and used as template to amplify the total length and deleted mutant pokeweed antiviral protein ( pap ) gene by rt - pcr and then the pap gene was cloned into pgem - t vector. the sequencing results showed that pap gene had 99. 9 % identity comparing with the pap gene nucleotide sequence reported by lin et al ( 1991 ). the iptg - inducible expression vector containing the pap gene was constructed and transferred into e. coli bl21 ( de3 ) - plyss
將缺失型pap基因克隆到植物表達載體pbi121中,通過液氮冷凍法將重組質粒轉入農桿菌lba4404細胞中,然後採用葉盤法,在該農桿菌的介導下將pap基因導入普通煙草中,經過卡那黴素抗性篩選,最後獲得了轉pap基因的工程煙草植株,摩擦接種煙草花葉病毒( tmv ) ,與非轉基因煙草相比,能夠推遲癥狀表現達2月之久,說明pap基因能夠在其它植物體內產生有活性的高抗病毒的蛋白質。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。Observation of the immune effect of pla and plg microspheres containing tetanus toxoid protein
以聚合物微球為載體的破傷風類毒素蛋白疫苗免疫效果觀察Deficiency of apoe may promote to produce and develop atherosclerotic lessions. the apoe gene - targeted mice will result in marked regression of both early and advanced atherosclerotic lesions by injected apoe recombinant protein, or by transfected adviral vector with apoe cdna to express human apoe transgene in liver, or by transplantation of bone marrow with normal rat apoe gene. this demonstrates that apoe gene and its expressing product can inhibit progression of atherogenesis. apoe3 has a more effective prevention from as than apoe2 and apoe4
Apoe的缺失可促進動脈粥樣硬化的發生發展,給apoe基因敲除鼠反復注射apoe重組蛋白、在肝組織中用腺病毒載體表達apoe蛋白、移植帶有正常apoe基因的小鼠骨髓,都能使apoe基因敲除鼠的動脈粥樣硬化得到回復,表明apoe基因及其表達產物對動脈粥樣硬化的發生具有抑制作用, apoe _ 3對動脈硬化的阻抑作用要比apoe _ 2和apoe _ 4都明顯。2. an up - dated method was employed to purify tumv in this research. using the protease k method, we acquired the viral genome - rna. a pair of specific primers was designed and synthesized based on the nucleotide sequences of tumv coat protein genes reported before and rt - pcr was used to clone the cp genes of the six tumv isolates
應用改進的蕪菁花葉病毒的提取方法從病葉中提取病毒粒體,應用蛋白酶k法從病毒粒體中提取病毒rna基因組,根據已報道的tumv的cp基因序列,設計併合成了一對特異引物,利用rt - pcr法克隆了6個分離物的外殼蛋白基因,與克隆載體puc19連接后通過熱激法轉化大腸桿菌dh5 。Meq protein, highly expressed in the insect cell line sf9 by the baculovirus vector was immunized into balb / c mice and the immunized spleen cells were collected and fused with the tumor cell line sp2 / 0 via peg - 1000 in vitro. the hybridoma cells were cloned and screened for the ability of anti - meq mcab secretion by fa with the mdv ga infected chicken embryo fibroblast ( cef )
利用通過桿狀病毒載體在昆蟲細胞系sfg上高度表達的meq蛋白產物免疫balb / c小鼠,然後收獲其免疫脾細胞並與腫瘤細胞系spz / 0通過peg于體外融合;獲得的雜交瘤細胞被克隆並通過與mdv感染的雞胚成纖維細胞( cef )做免疫熒光試驗( fa ) ,進行其分泌抗meq單克隆抗體( mcab )能力的篩選。Some complicated molecules such as genetic engineered antibodies and virus particles for gene therapy can only be produced in mammalian cells
對于較復雜的分子如基因工程抗體,以及基因治療用病毒載體,哺乳動物細胞更是首選的表達宿主。All the result showed that ndv f48e9 strain has its own speciality compared with other five ndv strains, and there were many difference between velogenic strains and lentogenic strains. so the infectious cdna of rnesogenic strains and lentogenic strain was far from enough to understand the replication, pathogenicity of ndv and the interaction between ndv and host cells, and the infectious cdna of velogenic strains ( eg. f48e9 ) was required to explain the relationships between structure and function
本研究成功地獲得了ndvf48e9 t因組的核昔酸序列,並構建了表達ndvf48e9基因組cdna的低拷貝表達載體休f48e9 ,為構建新城疫病毒強毒株f48e9株的感染性cdna奠定了物質基礎,進一步研究ndv的生物學特性、結構與功能的關系;進一步探討影響ndv毒力的因素、以及研製新型疫苗載體提供了可靠保證。Both the mature genes of gloshedobin and gussurobin were cloned into the vector pet - 32a ( + ), strain bl21 ( de3 ), to study their expression in prokaryotic cell. the gene was expressed under t7 promoter with a fusion protein partner of thx. tag and a 6x his. tag at its n - terminal. having been induced by iptg for 4 hours, the recombinant enzyme was examined in the cytoplasm by sds - page analysis
將大連蛇島蝮蛇和長白山白眉蝮蛇毒類凝血酶基因分別克隆到大腸桿菌表達載體pet - 32 ( a ) +中,在t7啟動子下表達出融合蛋白,融合部分為硫氧還蛋白,位於類凝血酶基因上游,並在其n端帶6xhistag標簽以利於表達產物的分離純化,經熱激轉化至宿主菌bl21 ( de3 )中, iptg誘導斗小時后收獲菌體。The transfermants with highest resistance to g418 ( 4 g / l in ypd ) were screened to study their expression level in 150 ml shaking flask. having been induced with methanol for 36 hours, the target enzyme could be examined in the supernatant by measuring amidolytic activity
首次將大連蛇島賅蛇毒類凝血酶成熟基回克隆到表達載體ppicgk中,經電激轉化至畢氏酵母菌株gs15中,再經甲醇誘導,在150ml搖瓶畔1獲得細胞外分泌表達產物。This thesis studied on bacillus thuringiensis strain bt886 which was separated and selected by researchers of our laboratory. according to the observation of crystal shape and the bioassay of motschulsky and fairmaire, bacillus thuringiensis strain bt886 was identified as cry3 type, and the conclusion was assured by the further study on molecular level. the 1956 base pairs full lengrh homological cry3aa gene which was toxic to motschulsky was cloned and sequenced
以該菌株為材料,克隆出了對光肩星天牛( anoplophralabripennis ( motsch . ) )具有毒殺作用的cry3aa同源基因,並且對該基因進行了人工改造、人工合成、大腸桿菌表達、生物活性測定、雙元表達載體的構建以及對楊樹的轉化等一系列研究,主要結果如下: ( 1 )顯微觀察該菌株所形成的伴孢晶體為方形。Researchers at the conference on retroiruses and opportunistic infections at the los angeles conention center reported that many of the problems could be aoided by judicious use of an experimental drug, an existing aids medication and a widely used cholesterol - lowering agent
在洛杉磯大會中心召開的關于逆轉錄病毒載體與機會感染會議上,研究者報告說,通過慎重使用一種實驗性藥物可以避免這些問題,此藥為現有的aids附加藥,廣泛用於低膽固醇治療。The close genetic relationship of goose parvoviruse and aav allows the examination of the molecular biological properties of the nonstructural proteins of gpv. after the gpv infected the cell the viral life cycle was regulated by the nonstructural proteins encoded by the virus. according to the published of gpv b strain genome nucleotide sequences in genbank and a pair of specific primers were disigned with oligo4. 1
本研究根據genbank發表的gpvb株全基因序列,藉助oligo4 . 1軟體設計一對引物,採用pcr技術擴增gpvh1株非結構蛋白ns2基因,並與pmd18 - t載體連接后測序,結果表明:鵝細小病毒h1株ns2基因核苷酸全長1356bp ,編碼451個氨基酸殘基,與gpvb株的ns2基因相比,核苷酸數目相同,有17個堿基、 6個氨基酸的差異;同源性分析表明:二者核苷酸序列同源性為98 . 75 ,推導氨基酸序列同源性為98 . 67 。Objective : to clone and sequence the cdna encoding metalloproteinase from the venom of agkistrodon acutus from northen mountain area of guangxi province. methods : one step method was used to extract total rna from the venom of agkistrodon acutus found in northern mountain area of guangxi province. different kinds of cdna encoding metalloproteinase were amplified by one step method ( rt - pcr and pcr reactions occurred in the same tube ) using different primers
方法:從桂北五步蛇毒腺中抽提總rna ,利用不同的引物,採用一步法( rt - pcr和pcr在同一管內進行)擴增出不同的dna條帶,利用平端連接的方法將pcr擴增產物克隆至pgem - teasy載體,轉化大腸桿菌jm109 ,挑選白色菌落提取質粒,用pcr對其進行鑒定,直接利用純化pcr產物或提取陽性菌落質粒進行測序。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。Haake da, champion ci, martinich c, et al. molecular cloning and sequence analysis of the gene encoding ompl1, a transmembrane outer membrane protein of pathogenic leptospira spp [ j ]. j bacteriol, 1993, 175 ( 13 ) : 4225
晏菊芳,鮑朗,伍衛華,等.中國鉤端螺旋體強毒株017膜蛋白基因的質粒載體構建及表達[ j ] .中華微生物學和免疫學雜志, 1999 , 99 ( 2 ) : 117Objective, clone tissue - type plasminogen activator ( t - pa ) gene and construct a new kind of recombinant vector containing human tissue - type plasminogon activator ( t - pa ) cnda neither cytotoxiaty nor actovating prot - oncogenes
目的:克隆組織纖溶酶原激活物( t - pa )基因並構建一種無細胞毒性、不激活原癌基因的真核表達的pcdna3 . 1 ( + ) / t - pa質粒載體。In addition, we also focused on constructing a plant virus - based gene vector pvx to express ltb - st fused gene by means of agroinfection. the possibility of producing vaccine was probed through plant virus - based gene vector expression system
同時本研究還通過構建ltb ? st融合基因pvx病毒表達載體,並用農感染法轉化植物,探索了暫態表達系統生產疫苗的可能性。The expression of ha in vero cells infected with rprv - ha was detected by western - blot. the results indicated that ha protein could be consistently detected from a serial passages of vero cells infected with rprv - ha. the recombinant virus can be further developed as a live vectored vaccine against pseudorabies and swine influenza
結果表明所獲得的重組病毒( rprvha )遺傳性狀穩定,在培養細胞中能穩定的表達與sivha具有相似生物學活性的外源蛋白,為進一步制備抗豬流感的重組偽狂犬病毒活載體疫苗奠定了基礎。分享友人