載體片粒 的英文怎麼說
中文拼音 [zǎitǐpiānlì]
載體片粒
英文
carrier pellet-
The study results of this paper can serve the two scientific subjects of our teaching and research group as basic data calculation and elementary exploration. the two subjects are : constructing high activity - amylase genes by dna shuffling technology and studying on the evolution in vitro by mutational pcr ( with 5 - br - dutp as substitute partly ) and dna shuffling technology. - amylase ( ec 3. 2. 1. 1 ; 1, 4 - a - d - glucanohydrolase ) can catalyzes the hydrolysis of - 1, 4 - glycosidic bonds of starch from middle and liberates - maltose, - glucose and - limit dextrin stepwise
本試驗根據genbank已公布的黃單胞菌-澱粉酶基因的核苷酸序列由引物設計軟體premierprimer5 . 0輔助設計了一對引物( primer & primer ) ,以pbluescript ks +和puc18 / puc19質粒為載體,用常規的pcr方法從xanthomonascampestrispv . malvacearum ( smith ) dye等七株黃單胞菌( xanthomomasspp . )的基因組dna中克隆得到8個基因片段,分別命名為zhyf001 zhyf008 。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。The materials as explant in transformation come from birch leaf, stem segment and leaf stalk, and the spider toxin gene was used as foreign gene for this transformation experiment. it showed that the best explant was the big leaf, on which the transformation frequency was 22 %. by gus detection, there were 43 percent of the plants with kanamycin resistance, and 100 percent of positive result, by pcr amplification, was gotten from random sampling
利用雙元載體的根癌農桿菌lba4404菌株( agrobacteriumtumefaciens ) ,含質粒pyhy (目的基因及npt 、 gus基因) ,對白樺試管苗莖段,葉柄,葉片三種外植體進行侵染,結果表明:大葉片生長勢強,為轉基因的最優外植體,轉化率能夠達到22 。4. the construction of middle - clone vector and expression vector the puc - cp and pgem - 7z plasmid were digested by kpnl and bamhi, and collected the digested cpti fragment and the pgem - 7z, then ligated by t4 dna ligase and formed the pgem - cp
中間載體及表達載體的構建將puc - cp質粒和pgem ? 7z質粒,用kpni和bamhi酶切,分別回收cpti片斷和酶切后的載體片段,用t _ 4連接酶連接構建成中間載體pgem - cp 。Cut off beta fragment from plasmid prok. ii with hindlll and ecor i as insert, and cut pa into linear plasmid as vector fragment. link the insert and vector fragment together with t4 ligase, and the new vector with gene beta and gus was constructed
用hind和ecor雙酶切prok質粒,獲得beta基因片段作為插入片段,用hind和ecor雙酶切a質粒作為載體片段,將插入片段與載體片段相連,即構建成含有beta和gus的雙基因載體。Healthy rabbits were inoculated each with vaccine of the recombinant fused pili - el - 2 protein at 250ul per dose to potentiate the immunogenicity. rabbits inoculated two times at one week interval
擴增此質粒,回收bamh切出的2 . 5kb的基因片段,與pme290 ( bamh酶切後去磷酸化)載體連接。The result showed that the homology rate of pila gene among the 5 avian pathogenic e. coli strains tested and one human e. coli were from 89. 8 % to 91. 1 %, and the homology rate of amino acid were from 88. 5 % to 91. 8 %. the homology rate of pila gene sequence among 5 avian pathogenic e. coli strains tested and avian pathogenic e. coli reported ( serotype o1, o2, o78 ) were from 87. 8 % to 90. 2 %, and the homology rate of amino acid were from 84. 6 % to 91. 2 %. there had homology in avian pathogenic e. coli. there had some common antigen side in type 1 pili of avian pathogenic e. coli
結果表明:運用msha法檢測1型菌毛的檢出率為80 ( 36 45 ) , pcr法的檢出率為95 . 5 ( 43 45 ) , pcr方法用於1型菌毛的檢測比msha更加敏感、快速、特異性強;選擇5株優勢血清型雞源致病性大腸桿菌代表株( o _ ( 89 ) , o _ ( 119 ) , o _ ( 141 ) , o _ ( 127 ) )的1型菌毛pila基因的pcr擴增片段經純化后,分別定向克隆到puc18質粒的多克隆位點,構建了含有目的基因片段的克隆質粒,並轉化到dh5株大腸桿菌載體菌中,篩選獲得陽性克隆菌株。In this paper, a field strain of infectious bronchitis virus was isolated from proventriculus tissue, morphological observation by electron - microscope and the biological characterizations of the virus were studied, pairs of specific primers are designed and synthesized in correspondence with them, according to the published sequences of infectious bronchitis virus three structural protein ( spike protein s membrane protein m nucleocapsid protein n ) genes, the cdna of si gene, s2 gene, m gene. n gene of ib v isolate lx4 were amplified by rt - pcr and full sequences were first reported
在此基礎上,根據國內外已發表的ibv基因序列,分別設計特異性引物,應用不同引物進行反轉錄合成cdna ,分片段對ibv的主要結構基因進行pcr擴增,並分別將各個目的片段克隆到puc19載體上,在大腸桿菌dh5中實現目的基因的分子克隆,經藍白斑篩選、限制性內切酶分析、 pcr鑒定,篩選出重組陽性質粒,並對各個目的基因片段進行序列測定,從而獲得ibv主要結構基因全序列。In order to express alkaline protease gene ( ap gene ) in bacillus subtil is, the recombinant expression plasmid was constructed. this plasmid contains a promoter bp53, also from b. pumilus un - 31 - c - 42, ap gene and the shuttle vector psugv4. after introduced into b. subtilis wb600, the transformants displayed the hydrolyzed zone on milk plate
將來自短小芽抱桿菌un一31一c礴2的基因啟動子( bp53片段)和脫毛蛋白酶全基因( ap )進行融合,然後將重組基因(命名為bpap )插入到大腸桿菌-枯草桿菌穿梭質粒載體psugv4中,構建成表達質粒psu一bpap 。The results showed that all six tfs displayed no autoluminescence in this two - hybrid system, and one of them, the atf3 displayed a strong interaction with restin. to verify the interaction of restin and atf3, a series of truncated fragments of atf3 were inserted into pact to be used in the further study
三、為了進一步驗證atf3與restin的相互作用,對atf3進行截斷並構建了一系列atf3的截短片段的雙雜交質粒(仍然構建於pact載體中) ,再次運用細胞雙雜交進行相互作用的探索。Vp3 gene of hl isolate of goose parvovirus derived from recombinant piasmid pproex htb - vp3 was subcloned into ecorl site of psy538, and the reporter gene lacz with promoter pll was cloned into smai site of recombinant piasmid. both vp3 gene and lacz gene were cloned into noti site of psy681, recombinan fpv transfer vector containing vp3 gene of gpv was obtained. the result is basis of construction of recombinant fpv expressing vp3 gene of gpv and gpv genetic engineering vaccine
本研究另從含有gpvh1分離株主要結構蛋白vp3基因的重組質粒pproexhtb - vp3中切取gpvh1株vp3基因片段,將其亞克隆于psy538的ecori位點,然後將帶有痘苗病毒啟動子p11的lacz報告基因平端克隆于上述重組子的smai位點,再用noti切下同時含有vp3基因和lacz報告基因的片段,再亞克隆于psy681的noti位點,構建出含有vp3基因的重組禽痘病毒轉移載體,為構建表達vp3基因的重組禽痘病毒從而制備gpv基因工程疫苗奠定了基礎。A gene library of psedomonas fluorescens g2 was constructed in the cosmid vector pla2917 using e. coli jm109 as the host strain. two recombinants, pgr3 and pgr7, which can confer glyphosate resistance ofe. coli jm109 were identified from the selective medium containing 10mm glyphosate
以粘粒pla2917為載體、大腸桿菌jm109為受體菌構建熒光假單胞菌g2的基因組文庫,在含有10mm草甘膦的固體選擇培養基上篩選出兩個耐受克隆pgr3和pgr7 ,插入片段分別為7kb和11kb 。Other chromosome elements, telomere and ars, have also been cloned for constructing artificial chromosome. arabidopsis telomere was cloned from pcr products using telomere repeat primers without other template. a 2000bp fragment of ars was released from arabidopsis genomic bac clone t14a4 by claidigestion and subcloned into clai digested pbluescript
擬南芥的端粒是利用端粒的重復序列進行無模板的pcr擴增得到的;約2000bp的ars片段是從擬南芥的bac克隆t14a4中用限制性內切酶c1a1切下,然後亞克隆到通用載體pbluescript上。Construction of male sterility expression vector by integration of artificial sense and antisense cdnas of hsp70 into puc18 and puc19 respectively, we can obtain psc and pac. tapertal specific expression promoter ta29 and terminator nos are connected directionally with sense and antisense cdnas of hsp70 extrected and purified from psc and pac., then integrated into puc18 and puc19, by which we can build sense and antisense cdna nos ( respectively named plasmid 650 and plasmid 651 ) of ta29 - hsp70. for the sake of better screening and examination of transformed gene, we cut plasmid 650, plasmid 651 and 3301 ( containing gusgene bar screening marker gene ) with hindiii and ecor i enzymes, then connect purified fragments of 650and 651 with plasmid 3301 to construct the vector 3301 + 650 and 3301 + 651. corroboration of whether sense and antisense cdna - nos is integrated into plasmid3301 can be made by plate screening and enzye - cutting analysis
分別將從psc 、 pac回收純化的hsp70正、反義cdna與絨氈層特異表達啟動子ta29及nos終止子定向連接,然後插入到puc18 、 puc19中,構建成花藥特異表達的ta29 - hsp70sensecdna - nos和ta29 - hsp70antisensecdna - nos ,分別稱作650和651質粒。為了更好地對轉化子進行篩選和檢測,用hind和ecor分別對650 、 651及3301質粒(含gus報告基因和bar篩選標記基因)進行酶切,將從650和651回收純化的目的片段與3301質粒進行連接,再對重組子進行平板篩選和酶切分析確定ta29 - hsp70sensecdna - nos和ta29 - hsp70antisensecdna - nos插入到3301質粒中,構建成3301 + 650和3301 + 651表達載體。The tio2 / sio2 particle was characterized with scanning electron microscope ( sem ), infrared spectroscopy and xps. it could be saw from the photo of sem that the compounding particle was still spherical, and there were some tio2 on the surface of sio2 particle. ti - o - si was formed between tio2 and sio2, and this was confirmed by ft - ir analysis
並運用掃描電鏡、紅外光譜和xps等檢測手段對其進行了表徵和測試,從復合粒子的掃描電鏡照片中可以看出,復合粒子仍為球形,表面包覆一層tio _ 2 ,與載體氧化硅粒子相比,粒徑變化不大;其紅外光譜表明, tio _ 2與載體sio _ 2粒子表面有ti ? o ? si鍵生成,這表明tio _ 2與sio _ 2粒子表面有較強的結合力。Two strains of prrsv were isolated from the swine infected with prrsv in shangdong province and daqing area, in order to clarify the source and genetic background of porcine reproductive and respiratory syndrome virus ( prrsv ) from different parts of china, thus providing theoretic basis for the study of vaccine against it. the prrsv was cultured on mark - 145 cells for 5 ~ ~ 6 passages. when the cpe was obvious, the virus was harvested and purified
為了弄清我國不同地區prrsv的來源以及其遺傳學背景,為疫苗學研究提供理論根據,本研究在ch - 1a株完整的基因組獲得以後,從流行於我國山東( sd )和黑龍江大慶( dq )地區疑似prrs的豬體內分離到prrsv ,在mark - 145細胞上盲傳5 6代,細胞出現明顯病變以後,收獲病毒液,然後提純,提取全病毒rna ,經過反轉錄、 pcr擴增獲得結構基因orf2 7的目的基因片斷,然後與pmd - t載體連接,轉化,得到陽性質粒后進行測序,並將其與ch - 1a株進行了比較分析,同時對這兩個毒株的結構基因組的理化性質進行分析。By the same method, the expression vector pbi121 - cp was constructed from pgem - cp and pbi121 with xbal and saci digestion. after that, the pbi121 - cp was transferred into agrobacterium lba4404 strain by freeze - thaw method. the pcr amplification indicated the lba4404 strain containning cpti gene. the lba4404 strain was used in genie transformation of mustard
經酶切和pcr擴增驗證后,以xbai和saci雙酶切pgem ? cp和pbi121 ,將切下的cpti片段和pbi121載體片段連接構建成表達載體pbi121 - cp ,用凍融法導入農桿菌lba4404 ,提取質粒,經pcr擴增檢測,用於芥菜的遺傳轉化。Cut pgah with hindlll into linear plasmid as vector fragment and insert beta fragment into it. the recombinant vector with dualt salt - tolerance gene beta and coda was constructed
用hind單酶切pgah質粒作為載體片段,將beta基因片段作為插入片段與載體片段相連,即構建出雙耐鹽基因載體。The 1. 488kb dna fragment was sequenced and ligated to pbi121 vector and transformed into otsa deficient of e. coli strains ( ff4169 ). otsa gene is in charge of trehalose - 6 - phosphate synthesis in e. coli. in growth curve experiment, the transformants that carried the 1. 488kb dna fragment grew well in minimum medium, which contains 0. 5mol / l nacl, while control strains could n ' t endure it
提取釀酒酵母的總dna ,以此為模板,採用pcr的方法從釀酒酵母中克隆出了1 . 488kb的海藻糖合成酶基因tps1片段,通過xba和sma雙酶切,與同樣經過xba和sma雙酶切的puc118載體質粒連接,轉入大腸桿菌dh5中,通過藍白斑篩選重組子。Methods : the two pairs of designed primers were based on pzp3 a and hcg p - ctp109 - 145 cdna sequences. the pzp3 a - hcg p - ctp109 - 145 chimera was amplifiled by overlapping pcr. the chimera was cloned into ppic9k plasmid and transformed into e. coli dh5 a
結果: 3步pcr擴增出pzp3 - hcg - ctpdna片段,插入到載體質粒ppic9k的克隆位點,獲得重組ppic9k - pzp3 - hcg - ctp表達質粒,測序結果顯示插入序列與設計預期完全一致。分享友人