結核菌白蛋白 的英文怎麼說
中文拼音 [jiēhéjūnbáidànbái]
結核菌白蛋白
英文
thamm's tuberculin- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 核 : 核構詞成分。
- 菌 : 菌名詞1. (蕈) mushroom2. (姓氏) a surname
- 白 : Ⅰ形容詞1 (似雪的顏色) white 2 (清楚; 明白; 弄明白) clear 3 (空的; 沒加他物的) pure; clear; ...
- 蛋 : 名詞1. (鳥類或龜、蛇類所產的卵) egg 2. (像蛋形的東西) an egg-shaped thing 3. (辱罵之詞)
- 結核菌 : mycobacterium tuberculosis
- 結核 : 1. [醫學] tuberculosis; consumption; phthisis; noddle 2. [地質學] concretion3. [礦物學] nodule
- 蛋白 : 1. (卵中透明的膠狀物質) egg white; albumen; gary2. [生物化學] (蛋白質) protein
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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。In addition, it was also found that this protein shares limited but significant homology with the sam - dependent methyltransferase of mesorhizobium sp. bnc1 ( 32 % similarity ), and the similarity of its 303 - 362 region to the 160 - 220 domains of l11 methyltransferases of e. coli ( prma ) is 41 %. it is suggested that methylation of l11 resulted in effects of noea on nodulation of 042bm
發現noea與中慢生根瘤菌( mesorhizobiumsp . ) bnc1可能的sam -依賴性的甲基轉移酶相似性為32 ,而其303 - 362區域與大腸桿菌( escherichiacoli )的核糖體50s亞基的l11蛋白甲基轉移酶( prma )的160 - 220結構域的相似性達到41 。Our country ' s at present commonly used tuberculin is the ramification of pure egg white of n / med tuberculosis bacterium, abbreviation ppd
目前我國常用的結核菌素為結核菌的純蛋白衍生物,簡稱ppd 。Tuberculin is one kind fosters filtrate to be made by n / med tuberculosis bacterium, contain the albumen of n / med tuberculosis bacterium, biological product that does not contain substance of n / med tuberculosis bacterium only
結核菌素是一種由結核菌培養濾液製成、只含結核菌蛋白、不含結核菌體的生物製品。The pathogenic strains of yersinia enterocolitica carry a 45 - kb high pathogenicity island ( hpi ) comprising iron - uptake - related genes such as irp1 - irp2 and fyua, which has been observed in 93 % of the 60 entero - adhesive e. coli { eaec } strains and 80 % of the e. coli isolated from blood samples
Hpi毒力島功能核心區主要的結構基因為irp2 、 irp1和fyua ,是高度保守的。 irp2和irp1分別編碼兩種高分子量蛋白hmwp2和hmwp1 , fyua編碼鼠疫菌素受體。By recombinant dna techniques, the vp2 gene of gpv hi strain was fused in frame with 6his gene of prokaryotic expression vector pproex - htb. the recombinant expression plasmid of goose parvovirus vp2 gene pproex - htb - vp2 was transformed into e. coli dh5a and induced with iptg. sds - page analysis showed an induced expression product band about 72ku, which correspond to the sizes of vp2, reported in the literature
利用dna重組技術,將其結構蛋白vp2基因亞克隆至原核表達載體pproex - htb , iptg誘導后成功表達出與預期大小相符的約72ku的融合蛋白,光密度掃描對表達產物進行初步定量,表明表達產物約占菌體總蛋白的14 。Objective : construct high - level expression system of echistatin in e. coli methods : obtain amino - acid sequence of echistatin from genebank database. considering the bias of usage of 61 available aminoacid codons in e. coli, design the coding sequence of echistatin, synthesize the dna sequence chemically, get single copy coding gene and repeated two copy coding gene of echistatin. insert the sequence into expression vector pbv220, and more, we construct fusion expression clone of echistatin with pcr, identify the recombinant vector by dna sequencing
目的構建蛇毒鋸鱗蝰素( echistatin )的原核高效表達體系方法由genebank數據庫檢索蛇毒鋸鱗蝰素( echistatin )的氨基酸序列,結合大腸桿菌蛋白質合成體系對氨基酸密碼子使用的偏愛性,設計了echistatin編碼基因,體外人工合成編碼基因dna片段,通過適當的限制性內切酶位點插入表達載體pbv220 ,分別構建了echistatin的單拷貝表達克隆、雙拷貝串聯表達克隆;進一步通過pcr技術構建echistatin的融合表達基因克隆。Cloning and sequencing of heat shock protein 70 promoter of mycobacterium tuberculosis
結核分枝桿菌熱休克蛋白70啟動子的克隆和測序Study on dth reaction of guinea - pig induced by several recombinant antigen of m. tuberculosis
幾種結核分支桿菌重組蛋白誘發豚鼠遲發型超敏反應的研究The results demonstrated that the momps were protective antigens and the momp - iscoms of aeromonas hydrophila could induce the host to mount satisfied immunity. a pair of primers were designed according to the published nucleotide sequence of a putative outer membrane protein gene ( omp ) of aeromonas hydrophila. with the specific primers, a target fragment about 1. 1kb was amplified from aeromonas hydrophila l316 via pcr. the target fragment was inserted into the linearized pgem - t easy vector
根據已發表嗜水氣單胞菌的外膜蛋白基因omp的核苷酸序列設計引物,利用pcr技術,擴增、克隆了嗜水氣單胞菌l316的主要外膜蛋白基因( momp ) ,經t a克隆,插入到pgem - t系列載體上,測序分析結果表明momp基因最長的開放閱讀框( orf )為1035nt ,編碼由344個氨基酸組成,分子量為36kda的主要外膜蛋白質( momp ) 。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 。Western - blotting result demostrated rhpf4 had specific reaction with rabbit anti - hpf4 antibody. our system improve the expression level of r hpf4 by 80 fold compared with pt7 - 7 - r hpf4. after purified and renatured, r hpf4 prepared by our methods has bioactivity like wide hpf4. our study establish a stable base for further reseach of the h pf4 and provide a theoretics gist for modulative mechanism of eukaryotic protein expression in prokaryotic cells
我們構建的rhpn原核高效表達系統經m page及凝膠密度掃描分析結果表明, rhpf4表達量占菌體總蛋白量的25 30 ,較原表達克隆pt7 7 rhpf4提高了近80倍,經快速高效的包涵體分高純化工藝和復性工藝, rhpf4具有野生蛋白活性。Thirteen putative epitopes showing characteristics of antigenic epitope were found from the analysis information. using pcr, the nucleotide acid fragments encoding these putative epitopes were amplified, then cloned into the expression vector miske. the positive recombinant phage displying the epitopes were found out by using pcr, sequencing and the determination of phage plaque titer
運用goldenkey分子生物學軟體對prrsvbj - 4結構蛋白的抗原表位及其二級結構進行了分析和比較,從中篩選13段顯示表位特徵的氨基酸殘基序列,用pcr技術擴增相應的核苷酸片段,將其插入到噬菌體表達載體m13ke ,結果預測的13個表位可在噬菌體表面得以展示。In order to further investigate the role of axudl in human tumor carcinogenesis and the potential association between the axudl gene expression status and the stimulation of transforming growth factor beta in human cancers, the present study was performed in three aspects as follows : ( 1 ) cloning full length enconding region cdna of axudl and construction of eukaryotic vector that expression the fusion protein of axud1 and influenza virus hemagglutin ha epitope tag ; ( 2 ) exploring the time and dose effects of tgf - 1 on the expression - of axudl gene in hepg2 hepatoma cells and spc - a1 lung carcinomas cells, and studying the effects of overexpression of axud1 on the expression of cell cycle and apoptosis related protein in hepg2 hepatoma cells ; ( 3 ) construction and expression of human axudl in e. coli m15. the following main results and conclusions can be obtained from the present study : 1. the full length ecnoding region of human axudl cdna from human peripheral blood lymphocytes was successfully cloned using one step rt - pcr method, and constructed into a eukaryotic expression vector which can be expressed a ha - axud1 fusion protein with axud1 and influenza virus hemagglutin ha epitope tag. the recombinant plasmid was identified by polymerase chain reaction, restriction endonuclease maping and sequencing, this expression vector might be instrumental to further study the function of axud1 protein in tumor cells
為了進一步研究axud1在人類腫瘤發生中的作用及axud1基因的表達狀況與tgf -介導的信號通路的關系,本實驗研究分為三個部分: ( 1 ) axud1基因cdna全長編碼區的克隆和ha表位標記的axud1基因表達載體的構建; ( 2 )探討肝癌細胞hepg2和肺腺癌spc - a1細胞中tgf - 1誘導的axud1基因表達的時間、劑量效應以及誘導表達的可能機理,並研究axud1的過表達對細胞周期和細胞凋亡相關蛋白表達的影響; ( 3 ) axud1原核表達載體的構建及其在大腸桿菌中的表達。本實驗的主要結果和結論如下: 1利用一步法rt - pcr成功地從人類外周血淋巴細胞中克隆出axud1基因編碼區cdna ,並將其構建入真核表達載體中,編碼的ha - axud1融合蛋白帶有流感病毒凝血素ha的表位標記肽段。Second, a prokaryotic expression construct, obtained from invitrogen transformed into prokaryotic and induced to express vp1 protein. the expressed vp1 fusion protein was purified by affinity chromatography using glutathione - agarose resin and used in elisa and western bolt analysis as the antigen. the elisa and western blot results showed that the anti - fmdv antibody was elicited specifically against vp1 antigen
第二,為了得到抗原蛋白,將vp1的原核表達質粒pgex - 4t - vp1轉化入大腸桿菌bl21中,經iptg誘導,裂解細胞後用瓊脂糖珠進行純化,用elisa和westernblot進行檢測,結果表明誘導表達出所需大小的融合蛋白。A 1. 7kb fragment encoding ge of prv fa strain was obtained by pcr from plasmid ppge templated using a pair of the designed primers containing ecori and bamhi ' sites. the ge gene fragment cutted with ecori and bamhi was inserted into the expression plasmid pbv220 including these two endonuclease sites for constructing the recombinant plasmid pbvge. strain dh5a of e. coli contain pbvge was induced at 42 for 4 - 6hr after incubation with vigorous shaking at 30 for 3hr or so
以質粒ppgedna為模板, pcr擴增出1 . 7kb的ge基因完整片段,將擴增產物以ecori和bamhi雙酶切后,插入原核表達載體pbv220的p _ rp _ l啟動子下游的ecori和bamhi位點間,得到重組表達質粒pbvge ,轉化了pbvge的大腸桿菌dh5a經溫敏誘導表達后,用sds - page和western - blot ,以及瓊脂雙擴散來檢測,結果表明prvfa株ge基因在原核載體上得到高效表達,表達產物約占總蛋白的17 。For these goals, the fo llowing jobs have been done and some results have been obtained. 1 according to the vitreoscilla hemoglobin ( vhb ) amino acid sequence and plajnt preference codon usage, vgbm gene was designed and synthesized by annealing 22 synthetic fragments respectively, the modified vgbm gene of full length of 450 base pairs was synthesized. 2 the transformants were obtained after pbv221svhb was introduced into e. coli
為此本論文作了以下工作並得出了一些結論: 1根據透明顫菌血紅蛋白( vhb )的氨基酸序列,選用植物偏愛密碼子,對透明顫菌血紅蛋白基因( vgb )進行優化改造,設計併合成了22條寡核苷酸短片段,人工合成了改造的全長450bp的透明顫菌血紅蛋白( vhb )基因( vgbmIn this thesis, signal peptide analyse software and trans - menbrane helix analyse software were integrated in the research of mycobacterium tuberculosis ( mtb ) secreted proteins prediction
本研究嘗試了利用信號肽預測軟體和跨膜螺旋預測軟體對結核桿菌全蛋白組進行分泌性蛋白的預測分析研究。The thesis has two parts, one is the prediction the other is the confirmation. in the first part all proteins of mtb h37rv were scaned in use of two bio - software ( signal ? and tmhmm ) to analyse signal peptide and trans - menbrane helix, and discovered 182 proteins are possible secreted proteins
預測部分利用了兩個生物學軟體( signalp 、 tmhmm )對結核桿菌全蛋白質組做信號肽分析和跨膜區分析,通過數據整理找到182個蛋白可能是分泌性蛋白,再經blastp對ncbi已收錄的蛋白質庫中所有序列進行相似性比對分析,發現這182個蛋白中有12個為結核桿菌所特有。Ppd is not sensitive enough, furthermore bcg vaccination interferences the diagnosis of tb. for the reasons above, it is very important to develop new vaccine, or enhance bcg effection and diagnosis reagent for finding tb patient timely and specially
同時,由於bcg的廣泛接種,使純化的結核菌素蛋白衍生物( purifiedproteinderivativeoftuberculin , ppd )診斷試劑特異性不高, tb病例的及時發現成為難題。分享友人