腸據轉 的英文怎麼說
中文拼音 [chángjùzhuǎn]
腸據轉
英文
volvulus-
In this study, iltv - nm98a strain and iltv - wanggang strain were multiplied in chorioallantois. a pair of primers were devised according to the nucleic acid sequence of iltv tk gene and the dna of multiplied virus was used as pattern to amplify the gene of tk by polymerase chain reaction ( pcr ). the product of pcr was linked with suitable plasmid. then, the recombined plasmid was converted to escherichia coli. the converted escherichia coli
根據已發表的iltvtk基因的核苷酸序列設計一對pcr引物，以增殖的兩株iltv的dna為模板，分別對它們的tk基因進行pcr擴增。將回收的pcr產物連接到適當的質粒載體上，轉化感受態大腸桿菌，通過篩選對iltvtk基因的陽性克隆進行擴增培養。Recombination gene was cut - down and introduced into the nuclei of oocytes or the cytoplasm of goldfish at one - cell stage via microinjection. the results as follows : ( 1 ) fluorescence was observed from embryo under suitable uv light after microinjection 36 hours. the fluorescent ratio of gastrula embryo period was up to 25 %
採用顯微注射法將這種重組基因轉化1細胞期的金魚受精卵，實驗結果如下： （ 1 ）顯微注射后，根據胚胎發育分期，胚胎在顯微注射后36小時開始能在紫外燈下觀察到熒光，原腸期發熒光的胚胎比例為25 ，後期發育熒光率逐漸下降，肌肉效應期后又相對穩定。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。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 。A database search revealed that the putative sequence of the red gene shows 40 - 50 % identity with those of uroporphyrinogen iii methyltransferase ( encoded by coba gene ) from various kinds of bacteria. an over - expression of the coba gene in e. coli was reported to lead to an accumulation of trimethylated derivative of porphyrin termed trimethylpyrrocorphin and factor ii, which emit strong red fluorescence under uv
在ddbj中搜索到多種細菌來源的coba基因（編碼uroporph仰nogenhmethyltransferase ）與redsene有40 50的同源性，並據報道，其中一個來源於pmpboibaclerilllaslldelll切chit的coba的基因，轉人大腸桿菌、酵母菌及動物細胞后能使表達載體在紫外線下發射紅色熒光。To prepare the wild type mbl in prokaryotic system, a pair of primers was designed and synthesized, and was used to amplify mbl gene from the recombinant vector pgem - mbl that contans wild type mbl cdna. a recombinant prokaryotic expression vector, pet28 - mbl, was constructed by inserted the mbl gene into plasmid pet28 ( b ), and after transfected it into ecoli bl21 ( de3 ) and induced with iptg, recombinant mbl protein was expressed successfully
本實驗另選用了原核表達質粒pet28 （ b ） ，根據已構建好的含有mbl野生型基因的t載體pgem - mbl ，設計一對引物， pcr擴增mbl基因，凝膠回收，雙酶切pcr產物和pet28 （ b ）質粒， t4連接酶連接，轉化大腸桿菌dhsa ，氨芋選擇培養挑取克隆鑒定。To construct eukaryotic expression vector of mbl gene with codon 54 point mutation, the target sequence in pgem - mbld plasmid, which conains mbl cdna with codon 54 mutant allele, was amplified by pcr. after the cdna fragement and plasmids pci - neo were prepared by digestion with sma i and sal i, the fragment was inserted into sma i and sal i site in pci - neo eukaryotic expression vector, and the recombinant vector, named pci - mbl54, was obtained. the pci - mbl54, digested with restriction enzymes, was found to contain the point mutation mbl cdna by agarose gel electrophoresis analysis
本實驗以ggc54gacmbl突變為研究對象，選用真核表達質粒pci - neo ，根據已構建好的含54位密碼子突變型mbl基因t載體的結構，設計合成新的引物， pcr擴增54位密碼突變型mbl基因，凝膠回收，雙酶切pcr產物和pci - neo質粒， t4連接酶連接，將前者克隆至後者的sma和sal位點，轉化大腸桿菌xl - 1blue ，氨芐選擇培養。分享友人