細菌的感受態 的英文怎麼說

中文拼音 [xìjūndegǎnshòutài]
細菌的感受態 英文
bacterial competence
  • 細 : 形容詞1 （條狀物橫剖面小） thin; slender 2 （顆粒小） in small particles; fine 3 （音量小） thin ...
  • 菌 : 菌名詞1. （蕈） mushroom2. （姓氏） a surname
  • 的 : 4次方是 The fourth power of 2 is direction
  • 感 : Ⅰ動詞1 （覺得） feel; sense 2 （懷有謝意） be grateful; be obliged; appreciate 3 （感動） move; t...
  • 態 : 名詞1. （形狀; 狀態） form; condition; appearance 2. [物理學] （物質結構的狀態或階段） state 3. [語言學] （一種語法范疇） voice
  • 細菌 : germ; bacterium （pl. bacteria）; fungus （pl. fungi）
  1. 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。
  2. Culture of mg7 hybridoma cells and detection of antigen - binding affinity of mg7 mab by elisa 2. construction and identification of mg7 recombinant phage antibody library mrna was isolated from cultured mg7 hybridoma cells and converted into cdna ; the variable fragments of heavy and light chain were separately amplified and assembled into scfvs with a specially constructed dna linker by pcr. the scfvs dma was ligated into the phagmid vector pcantabse and the ligated sample was transfered into competent e. co / / tg1 to generate a bacterial form of mg7recombinant phage antibody library ; volume and recombinant ratio of the library were evaluated by means of bacterial colony counts and restriction analysis ( ecor i and hind iii )

    Mg _ 7重組噬菌體抗體庫的構建及鑒定從培養的mg _ 7雜交瘤細胞中提取並分離mrna ，反轉錄成cdna ；利用pcr分別擴增mg _ 7單抗的重鏈及輕鏈可變區基因，並通過? dna連接子將二者連接起來形成mg _ 7單鏈抗體基因；將mg _ 7單鏈抗體基因插入pcantab5e ；將連接產物轉化感受態tg1大腸桿菌，制備細菌形式的mg _ 7重組噬菌體抗體庫；通過菌落計數和限制性酶切分析（ ecor和hind ）評估mg _ 7重組噬菌體抗體庫的容量和重組率。
  3. Benzyl chloride were used for extracting genomic dna of aspergillus. niger 14, about 1. 5kb specific fragment was obtained from genomic dna of aspergillus. niger 14 by pcr amplification with primers ( forward primer5 " ataggcatcatgggcgtctct3 " reverse - primer5 " cagctaagcaaaacactccgc 3 designed according to the known sequences of the phytase gene in the gene bank and pyrobest ? dna polymerase, after ligated with pmd18 - tvector, transformated into e. colidh5a competent cell successfully. 3. nucleotide sequence analysis of the cloned fragment revealed the presence of the whole phya gene in pcr product

    用氯化芐法提取了aspergillus . niger14 ~ #基因組dna ，根據genebank中已知的黑麴黴植酸酶基因序列設計出一對特異性引物（上游引物： 5 ataggcatcatgggcgtctc3下游引物： 5 cagctaagcaaaacactccgc3 ） ，採用pyrobest ~ （ tm ） dnapolymerase （高保真dna聚合酶） ，通過pcr方法從aspergillus . niger14 ~ #基因組dna中擴增出了預期的1 . 5kb左右的特異性產物，將其與pmd18 - tvector連接后，轉化e . colidh5菌株的感受態細胞，經質粒抽提、酶切鑒定，確認該目的產物已得到成功克隆。
  4. A pair of primers were designed and synthesized based on the published ge gene sequence of prv - rice strain for amplifying ge gene of prv min - a, yielding a 1. 7kb band. the segment was linked to puc19 plasma dna by means of t4 dna ligase, transformed into e. coli jm109 permissive cells, and incubated on lb fray containg amp, x - gal and iptg. small amount of plasma was extracted by base cleavaging for enzyme digest analysis and pcr, resulting in recombinant plasma puge dna containing prv ge

    用t _ 4dna連接酶使ge基因與經bamhi 、 kpni同樣雙酶切的puc19質粒dna連接；用連接產物轉化大腸桿菌jml09感受態細胞，置含amp 、 x - gal和iptg的lb平板上培養12 20小時；挑取白色菌落於選擇性培養基擴大培養，堿裂解法小量提取質粒dna ，並進行酶切分析鑒定，結果獲得整合有prvge基因的重組質粒pugedna ，並與其它prv分離株進行ge基因序列同源性分析。
  5. After electrophorised on 1 % agarose gel, the pcr production was purified with agarose gel dna extraction kit. the segment was ligated with vector pmd18 - t and then was tranformed into the competent cell of dh5 a. a construction mstnd - pmd18t was generated by inserting the sequence of 254bp into pmd18 - t vector and selecting the sense clones. positive clone was identified by three ways : endonuclease digestion, pcr and sequencing. the result showed that the cloned sequence coincides with the designed sequence. this construction was digested with nco i and xho i and ligated the pet28a ( + ) vector digested with the same enzymes using dna ligation kit. the production of ligation reaction was transformed into the competent cell of bl21 ( de3 ). after 12 - 16 hours of culture, several colnes appeared on the plate. some positive clones were selected to extract their plasmid. these plasmids were digested by nco i and xho i and indentified by pcr. a contraction, mstnd - pet28a was generated. the result showed that the cloned sequence coincides with the designed sequence

    F _ 1長38bp ， r _ 1長36bp ，其它片段均40bp長， f _ 1和r _ 1片段兩端分別加上限制性內切酶nco和xho的識別位點序列。用成對單鏈片段進行延伸反應，然後用其他單鏈片段作為引物，進行pcr擴增，用dna快速純化回收試劑盒回收所得254bppcr產物，與pmd18 - t載體連接、轉化dh _ 5 。受體菌感受態細胞，利用藍白斑遺傳學篩選法篩選陽性克隆，提取其質粒，採用nco和xho雙酶切鑒定，獲得了254bp的片段；用pmd18 - t載體上的特異引物rv - m和m13 - 47進行pcr鑒定，獲得300bp的片段。
  6. In this experiment hcv structural gene was amplified by polymerase chain reaction ( pcr ), and was inserted into baculovirus expression vector pfastbacl to construct a recombinant transposing vector pfbl - cee. the plasmid pfb 1 - cee was transformed into dh1 obac competent e. coli cells. high molecular weight dna was prepared from the overnight cultures from the selected e. coli colonies, which was recombinant baculovirus shuttle vector containing hcv structural gene, named bac - cee

    本實驗用pcr擴增hcv結構區基因，克隆到桿狀病毒表達載體pfastbacl中，構建成重組轉座載體pfb1 - cee ，轉化dh10bac大腸桿菌感受態細胞，篩選陽性菌落，抽提大分子質粒dna ，獲得含hcv結構區基因的重組桿狀病毒穿梭載體bac - cee ，脂質體介導轉染sf9昆蟲細胞，出現細胞病變后，收集含有重組桿狀病毒顆粒的培養上消，重新感染sf9細胞，收集sf9細胞，進行12 . 5 sds -聚丙烯酰胺凝膠電泳，可見表達的蛋白條帶。
  7. The new methods to identify _ amylase activity and its producing bacteria, and the preparation of high efficiency competence cell were reported. three _ amylase genes were cloned from bacillus subtilis, xanthomonas campestrisand aspergillus oryzae. two mutant genes with high activity was reported by using the methods of mutagenesis in vitro

    主要研究內容包括-澱粉酶及其產生菌的快速鑒定新方法、高效感受態細胞的制備、 -澱粉酶基因的克隆和-澱粉酶基因的體外誘變等四個主要方面。
  8. Major difference of hn proteins lies in no. 18 - no. 75 amino acid residues on n - terminal which includes three active sites of hn protein. the influence on biological action, caused by the difference of hn protein, is needed to study further. hn gene has only four glycosylation sites, which is 1 or 2 less on amount than that of other strains. so, this difference can be take on as a natural mark of ndv b95 strain furthermore, the fragment encoding hn gene was excised from the positive clone pgem - hn with sail and saci enzyme, and purified by agrose gel fraction method. then the fragment was subcloned into the pet - 28c expressing vector digested by sail and saci restriction enzyme

    作者將正確的重組克隆質粒pgem - hn用saii 、 saci雙酶切，電泳回收目的片段，將其亞克隆到經saii 、 saci雙酶切處理的pet - 28c中，轉化大腸桿菌tgi感受態細胞，得到的轉化子經pcr鑒定和酶切分析，篩選出符合閱讀框的重組子，構建成重組表達質粒pet - hn ，並在大腸桿菌bl _ （ 21 ） （ de _ 3 ）宿主菌中成功地表達了含目的蛋白的融合蛋白，融合蛋白的分子量約66kd ，加入iptg誘導8h后，蛋白表達幾乎達到最高水平。
  9. 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。
  10. The purified products were cloned into pgem - t - easy vector successfully, the cloned plasmids were transformed into e. coli. tgl. the specific recombinant plasmid was identified by molecular weight, pcr and restriction endonuclease analysis. the results indicated that the resultant construct contained the gene of interest hn at right orientation of the insert

    經瓊脂糖電泳檢測，將大小與預計分子量一致的片段純化后連接到pgem - t - easy克隆載體中，再轉化大腸桿菌tgi感受態細胞，得到的轉化子經分子量比較、 pcr鑒定和酶切分析篩選陽性克隆。
  11. In this study, the recombinant plasmid pmd - 18t - pea - h3 was cleavaged with ncoi, xhoi and inserted into the expression vector pet - 28c and subsequently subjected to restriction endonuclease analysis and sequencing, the result indicated that the prokaryotic expression vector pet - 28c - pea - h3 was constructed successfully. after the expression plasmid was extracted and transformed into expression hosts bl21 ( de3 ) of e. coli, the transformed hosts were induced by iptg, bysds - page and elisa analysis of host protein. the expression of the objective gene was detected, and it could account for 16. 28 % of the total host protein. inclusion body was prepared from the incubating expression hosts induced by iptg

    同時將原核表達載體pet - 28c用nco ， xho雙酶切，回收酶切產物，將回收的酶切產物pea ， h3 ，載體進行連接，並轉入dh5感受態細胞內，培養12 - 18小時后，挑取陽性菌落，經nco ， xho雙酶切分析及pcr檢測，篩選到陽性克隆，其質粒測序結果表明成功地構建了毒性基因缺失的pea與人組蛋白h3融合基因的原核表達載體。
  12. It was transformed into competent cells of bl21 ( de3 ), then was induced to express by 0. 2mmol / l iptg at 37 for 4 hours. the recombinant protein was nearly 23. 3 % of the total products. it was proved that the recombinant protein had immune activity through western blot and elisa analysis. this provided the basis for the future preparation of mycoplasma hyopneumoniae test kit and the new vaccine against mycoplasma hyopneumoniae

    將其轉化宿主菌bl21 （ de3 ）的感受態細胞，然後經過誘導條件（誘導溫度、誘導劑用量和誘導時間）的優化，結果發現在37下， iptg終濃度為0 . 2mmol l ，誘導4h進行表達，可得到了一分子量約265kda的融合蛋白，表達量可達約23 . 3 。
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