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endonuclease是什么意思,endonuclease中文翻譯,endonuclease發(fā)音、用法及例句

2025-06-19 投稿

endonuclease是什么意思,endonuclease中文翻譯,endonuclease發(fā)音、用法及例句

?endonuclease

endonuclease發(fā)音

英:[end?'nju:kl?e?s]  美:[?endo?'nju:kli:?e?s]

英:  美:

endonuclease中文意思翻譯

n. [生化]核酸內切酶

endonuclease常見(jiàn)例句

1 、Restriction endonuclease digestive identification was right for recombinant expression vector pCD11b BFP. Blue fluorescence from fusion protein could be seen in U937 cells transfected with plasmid pCD11b BFP.───經(jīng)酶切鑒定 ,p CD11b- BFP構建完全正確 ,轉染 U937細胞株后 ,可見(jiàn) CD11b- BFP融合蛋白發(fā)出的藍色熒光。

2 、Analysis of ethambutol drug-resistance gene mutation in Mycobacterium tuberculosis by specific endonuclease───特異性核酸內切酶檢測結核分枝桿菌的乙胺丁醇耐藥基因突變

3 、Keywords chlamydia trachomatis;polymerase chain reaction;hybridization;restricted endonuclease;───沙眼衣原體;聚合酶鏈反應;雜交法;限制性?xún)惹忻?

4 、Newcastle Disease Detection by Gene Chip and Typing of Newcastle Disease Virus by RT-PCR Test Coupled with Restriction Endonuclease Analysis───基因芯片檢測新城疫病毒和PCR結合內切酶分析鑒別新城疫強弱毒株的研究

5 、The study on restriction endonuclease enzyme analysis method in atypical pneumonia───傳染性非典型肺炎限制性?xún)惹忻笝z測方法的研究

6 、apurinic endonuclease───脫嘌呤內切核酸酶

7 、restriction endonuclease from e. coli───大腸桿菌限制性核酸內切酶ⅰ, 大腸桿菌限制性核酸內切酶ⅱ

8 、Torres into the first ball is from the edge of Endonuclease Houweiebei de Xiadichuanzhong assists.───托雷斯所進(jìn)第一球,正是來(lái)自邊后衛阿貝羅阿的內切下底傳中助攻。

9 、A ,sad sequence ;B ,restriction endonuclease cutting sites of sad.───段,與序列分析結果相一致(圖略)。

10 、RESTRICTION ENDONUCLEASE FRAGMENT LENGTH POLYMORPHISM ANALYSIS OF MITOCHONDRIA DNA IN EGGS OF BOMBYX MORI───家蠶卵線(xiàn)粒體DNA限制性?xún)惹忻搁L(cháng)度多態(tài)性研究

11 、A portion of Ligation products were identified by BamHI and Hin-dIII restriction endonuclease and was named pUC - B2 - AR.───2·PMCX-p。 -AR反義表達載體的酶切鑒定,其結果與理論設計完全相符。

12 、Keywords Hepatitis C virus(HCV);Genotype;Interferon(IFN);Polymerase chain reaction (PCR);Restriction endonuclease;───丙肝病毒;基因型;干擾素;聚合酶鏈反應;限制性?xún)惹忻?

13 、Method The two clones of OSCP gene were modified by restriction endonuclease and recombined by T_4DNA ligase.───方法通過(guò)限制性核酸內切酶將發(fā)生有義突變的兩個(gè)OSCP基因的DNA克隆進(jìn)行改造,并進(jìn)行基因重組。

14 、apoptotic endonuclease───凋亡內切酶

15 、AIM: To explore the mechanism of neuronal injury and repair by investigating the expression of caspase-3 and apurinic/apyrimidinic endonuclease (APE/Ref-1) after focal cerebral ischemia.───目的 :觀(guān)察腦缺血后半胱氨酸蛋白酶 3 (caspase - 3 )和脫嘌呤 /脫嘧啶核酸內切酶 (APE/Ref- 1)的表達 ,探討腦缺血損傷與修復機制。

16 、After the PCR amplicons of SEE strain sere eleaved by restriction endonuclease EcoRV.electrophofretic analysis showed two 251 and 415bp DNA fragments.───SEE菌株的擴增產(chǎn)物經(jīng)EcoRV酶切能產(chǎn)生251和415bp兩個(gè)片段。

17 、damage specific endonuclease───損傷特異性?xún)惹忻?/p>

18 、Keywords Hairpin fluorescence molecular probe;DNA;DNA methylation;Methylase;Restriction Endonuclease;───關(guān)鍵詞發(fā)夾型熒光分子探針;DNA;DNA甲基化;甲基化酶;限制性?xún)惹忻?

19 、Apurinc/apyrimidinic endonuclease 1───脫嘌呤/脫嘧啶核酸內切酶1

20 、Nicking Endonuclease───Nicking核酸內切酶

21 、Results:The constructed recombinant plasmid contained the sequence of TSO45-4B gene that was identified by endonuclease digestion and sequence analysis.───結果經(jīng)酶切和測序鑒定表明所構建的重組表達質(zhì)粒中含有TSO45-4B基因。

22 、Conclusion The plasmid DNA restricition endonuclease analysis was more specific and sensitive than plasmid profile, but they both had some restrictions.───結論質(zhì)粒分析能較為特異、敏感地揭示不同來(lái)源志賀菌間的遺傳聯(lián)系和差別,從而準確說(shuō)明爆發(fā)或流行事件的真相。

23 、apurinic-apyrimidinic endonuclease───脫嘌呤嘧啶核酸內切酶

24 、repair endonuclease───修復核酸內切酶

25 、Mimics of both types of BCR ABL cDNA were achieved and the validity was verified with restriction endonuclease.───經(jīng)酶切分析證明 ,兩型BCR ABLmRNA均可通過(guò)此方法得到相應的cDNA參照物。

26 、Methods DNAs were extracted from the white blood cells of people in Hainan by salt-out method. Polymerase chain reaction and restriction endonuclease was used to determine the 4533G/A polymorphism.───方法用鹽提取法提取人群中白細胞的DNA,以聚合酶鏈反應、限制性?xún)惹泻怂崦笝z測-4533G/A多態(tài)性。

27 、The purpose of the experiment is to construct pcDNA3 expression vectors containing p27 gene by PCR and endonuclease lysis.───本實(shí)驗的目的在于通過(guò)PCR、酶切等步驟構建含有p27基因的載體pcDNA3,然后通過(guò)脂質(zhì)體轉染進(jìn)入腫瘤細胞MCF7中,篩選到穩定表達株。

28 、apoptosis-specific endonuclease───凋亡特異核酸酶

29 、Keywords plasmid;cyanide;restriction endonuclease;gram negative bacteria;───質(zhì)粒;氰化物;限制性?xún)惹忻?革蘭氏陰性細菌;

30 、homing endonuclease───歸巢內切酶

31 、After identification with restriction endonuclease digestion, sequencing, and indirect immunofluorescence (IF), the suicidal DNA vaccine (pAHSP65) was inoculated into mice.───經(jīng)酶切、測序鑒定,間接免疫熒光(IF)證實(shí)其能表達HSP65后,將此“自殺性”DNA疫苗(pAHSP65)免疫小鼠。

32 、The Extraction and Purification of Restriction Endonuclease from Local Moraxella bovine Strain of China───牛摩拉氏菌中國地方株限制性核酸內切酶的提取與純化

33 、Apurinic / apyrimidinic endonuclease / redox factor-1───脫嘌呤/脫嘧啶核酸內切酶/氧化還原因子-1

34 、RESTRICTION ENDONUCLEASE ANALYSIS OF CYTOMEGALOVIRUS STRAINS ISOLATED FROM CHILDREN ATTENDING KINDERGARTENS───幼兒園兒童巨細胞病毒分離毒株的限制性酶切圖譜分析

35 、Standardization of restriction endonuclease expression in molecular biology books and periodicals───分子生物學(xué)書(shū)刊中限制性?xún)惹忻傅囊幏侗磉_

36 、Keywords apurinic/apyrimidinic endonuclease 1;colorectal neoplasms;gene expression;───脫嘌呤/脫嘧啶核酸內切酶;結直腸腫瘤;基因表達;

37 、The ERG 11 gene of all isolates had been amplified successfully. There were some differences on both the Ace I and the Mun I endonuclease maps of ERG 11 gene between the hyphal form and the yeast form of C. albicans.───CA-7、CA-14,CA-16和CA-17的菌絲相與酵母相ERG11基因酶切圖譜存在差異;

38 、Uses advanced biotechnology to simulate the T4 Endonuclease produced by natural marine algae.This helps to repair and restore damaged DNA cells in the skin and erase fine lines and wrinkles.───以先進(jìn)科技模擬天然海藻中具修補功能的T4酵素,重建受損DNA,杜絕幼紋、皺紋的出現。

39 、The Detection of Human Cytomegalovirus in Gravida with the Early Trimester in Pregnancy and Neonates by Nested Polymerase Chain Reaction with Restriction Endonuclease and Virus Isolation───聚合酶鏈反應限制酶切分析及病毒分離檢測巨細胞病毒感染

40 、T4 Endonuclease V───UV-B輻射

41 、ultraviolet endonuclease───紫外內切核酸酶

42 、minor endonuclease───稀切酶

43 、Keywords Neisseria gonorrhoeae;Resistant plasmids;Restriction endonuclease;───淋病奈瑟球菌;耐藥質(zhì)粒;限制性核酸內切酶;

44 、PCR amplification and restriction endonuclease digestion was used to identify deleted DNA fragments.───應用PCR技術(shù)與限制性?xún)惹忻该盖邢嘟Y合的方法鑒定缺失子。

45 、Apurinic/Apyrimidinic Endonuclease 1───脫嘌呤/脫嘧啶核酸內切酶

46 、micrococcal endonuclease───微球菌核酸內切酶

47 、nucleate endonuclease───核酸內切酶

48 、Result Restriction endonuclease digestion and sequencing showed that the modification of the sense mutation of OSCP gene can be successful.───結果酶切及測序顯示對OSCP基因有義突變部分的糾正獲得成功。

49 、Results The result of restriction endonuclease digestion was accordance with the anticipated objective strap size .───結果 酶切結果與預期目的條帶大小相符;

50 、The OmpL1 gene of Leptospira(L.) serovar lai was amplified and sequenced, and its nucleotide sequence, protein secondary structure and restriction endonuclease map were further analysed.───用PCR方法擴增不同毒力賴(lài)型鉤體OmpL1基因片段,進(jìn)行序列測定,用相關(guān)軟件比較分析核苷酸序列、蛋白質(zhì)二級結構以及限制性?xún)惹忻缸V。

51 、Keywords Toxoplasma gondii;GRA7 gene;restriction endonuclease;clone;───弓形蟲(chóng);GRA7基因;限制性?xún)惹忻?克隆;

52 、Keywords Japanese encephalitis virus;recombinant plasmid;DNA sequencing;restriction endonuclease analysis;───流行性乙型腦炎病毒;重組質(zhì)粒;DNA測序;限制性?xún)惹忻阜治?

53 、Single-stranded-nucleate endonuclease───單鏈核酸內核酸酶

54 、Keywords Shigella;Plasmid profile;Restriction endonuclease pattern;RAPD-PCR;Shigella enterotoxin;───志賀氏菌;質(zhì)粒圖譜;限制性?xún)惹忻笀D譜;隨機PCR;志賀氏腸毒素;

55 、Experimental identification of endonuclease activity of the putative gene tls from phage PaP3───噬菌體PaP3推定基因tls核酸內切酶活性的初步驗證

56 、Methods The restriction endonuclease and T4 DNA ligase were used to construct the vector plasmid.───方法載體的構建采用限制性?xún)惹忻该盖小?DNA連接酶連接等方法。

57 、intron encoded endonuclease───內含子編碼內切核酸酶

58 、The PCR products were cloned into T clone vector,and the positive clones were picked out,then the T clone vector was identified by restriction endonuclease digestion.───將擴增的連接產(chǎn)物克隆入T載體,挑選**克隆并進(jìn)行酶切鑒定,酶切鑒定正確的克隆進(jìn)行拼接產(chǎn)物的核苷酸序列測序。

59 、AP endonuclease───脫嘌呤嘧啶內切核酸酶

60 、the PCR products were screened mutations using restriction endonuclease fingerprinting-single strand conformation polymorphism(REF-SSCP);───PCR產(chǎn)物通過(guò)限制性酶切-單鏈構象多態(tài)性方法檢測未知突變;

61 、Recombinant vector of pUCm-T/mIA-2i-mIgG Fc was prepared by gene combination and confirmed by PCR and dual-site endonuclease.───獲得重組克隆質(zhì)粒pUCm-T/mIA-2i-mIgGFc,經(jīng)聚合酶鏈反應和雙位點(diǎn)酶切鑒定重組成功。

62 、apurinic/apyrimidinic endonuclease───脫嘌呤/脫嘧啶核酸內切酶

63 、Conclusion Increase in cytoplasmic calcium activates endonuclease(s) which causes DNA fragmentation at internucleosomal sites and neuronal apoptosis.───結論 胞漿鈣離子升高激活內源性核酸內切酶,導致DNA核小體間斷裂,啟動(dòng)神經(jīng)細胞凋亡。

64 、restricted endonuclease───核酸內切限制酶, 限制性核酸內切酶

65 、endonuclease recognition site───核酸內切酶, 識別位點(diǎn)

66 、deoxyinosine endonuclease───脫氧肌苷內切核酸酶

67 、Whole Genome Amplification Technology, Mutagenic Endonuclease Restriction Assays, and Their Expanding Applications in Molecular Diagnostics───全基因組擴增技術(shù),致突變的核酸內切酶限制性分析,及其在分子診斷中的廣闊應用

68 、isoschizomer-heterotail restriction endonuclease (IHRE)───同序異尾限制性?xún)惹忻福↖HRE)

69 、Secondly,the preamplified DNA fragments were digested by a restriction endonuclease to form sticky ends,which were then ligated to a designed DNA adapter by ligase.───然后用限制性?xún)惹忻笇⑵湎啥唐?在連接酶的作用下與設計的DNA適配器相連;

70 、flap endonuclease───激動(dòng)內切核酸酶

71 、MOLECULAR CLONING AND RESTRICTION ENDONUCLEASE ANALYSIS OF Euproctis pseudoconspera NUCLEAR POLYHEDROSIS VIRUS DNA───茶毛蟲(chóng)核型多角體病毒基因組酶切分析及質(zhì)粒文庫的構建

72 、5 Restriction endonuclease map of MmPDV geomeM is molecular weight marker;───標題: 圖5 MmPDV基因組不同內切酶圖譜(M.分子量標準;

73 、deoxyribonucleic acid repair endonuclease───修復DNA的內切核酶

74 、The 344C/T polymorphism of CYP11B2 gene was monitored by PCR and HaeIII restriction endonuclease digestion methods.───應用多聚酶鏈式反應(PCR)、限制性?xún)惹忻阜椒z測CYP11B2基因的多態(tài)性分布。

75 、AP endonuclease 1───AP內切酶1

76 、Using recombination techniques, the gene fragment CED-9, derived from pBS, was incorporated into pGEM-7zf(+) and formed a new vector pGEM-ced9, in order to get the right endonuclease sites.───從質(zhì)粒pBS中獲取CED-9基因片段,構建中間載體pGEM-ced9以獲得合適的酶切位點(diǎn)。

77 、retriction endonuclease───核酸內切限制酶

78 、Keywords cerebral ischemia;reperfusion;gene expression;endonuclease;───腦缺血;再灌注;基因表達;核酸內切酶;

79 、Setting Up a Restriction Endonuclease Reaction───上一篇:酶切反應

80 、Keywords multiple myeloma;apurinic/apyrimidinic endonuclease;DNA damage repair;───多發(fā)性骨髓瘤;脫嘌呤/脫嘧啶核酸內切酶;DNA損傷修復;

CRISPR/Cas9基因敲除實(shí)驗全記錄(5)293FT細胞轉染驗證 and trouble shooting

先確定目標基因

CRISPR/Cas9基因敲除實(shí)驗全記錄(1)

然后對目的基因進(jìn)行背景調查

CRISPR/Cas9基因敲除實(shí)驗全記錄(2)磨刀不誤砍柴工

設計sgRNA及引物

CRISPR-Cas9(三)--sgRNA設計好之后

CRISPR/Cas9基因敲除實(shí)驗全記錄(3)sgRNA及引物設計

CRISPR/Cas9基因敲除實(shí)驗全記錄(4)構建sgRNA+Cas9載體

(1)sgRNA+pSpCas9載體用lipofectamine 3000轉染至293FT細胞(按照轉染試劑的說(shuō)明書(shū)走),確保轉染效率> 70%;

(2)72 h后收集細胞提取基因組DNA(按照基因組DNA提取試劑盒的說(shuō)明書(shū)操作);

(3)使用事先設計好的引物進(jìn)行PCR擴增,這里使用的酶是NEB公司的Q5 high-fidelity Polymerase,一切按照該酶的說(shuō)明書(shū)嚴格操作;

(4)將目的條帶切割下來(lái)并使用膠回收試劑盒回收DNA條帶,一切按照膠回收試劑盒說(shuō)明書(shū)進(jìn)行操作;

(5)回收后的DNA樣本,經(jīng)T7 Endonuclease I 酶解驗證錯配DNA,部分結果如下:

時(shí)間飛逝,上次說(shuō)提取質(zhì)粒后驗證,這部分就花了一天時(shí)間;加上打臺風(fēng)影響細胞復蘇,耽誤了1-2天,復蘇細胞后隔一天立刻傳代種板,第二天發(fā)現細胞稍微少了一點(diǎn),又等了一天,轉染后雖然是72h應該收sample,但細胞數目略少,可能提取不到足夠的基因組DNA,所以讓細胞又長(cháng)了一天,直到百分之80以上的融合度(因為我用的是24孔板)?;蚪MDNA提取之后立刻進(jìn)行Q5PCR,跑膠切膠回收,T7EI酶切再跑膠,這個(gè)騷操作一天做不完,分了兩天做,所以就一下子花了將近十天時(shí)間,嚶嚶嚶,這要放在其他組,可能都要被老板罵死了。

為啥不提前準備好細胞,為啥不計數種板,為啥為啥為啥為啥,事實(shí)上我自己也覺(jué)得不滿(mǎn)意,但好在最終得到了想要的結果,在還不確定自己的操作是否足夠風(fēng)騷的時(shí)候,請務(wù)必要小心謹慎,畢竟每一步都有可能出問(wèn)題。我在新手期曾遇到過(guò)的問(wèn)題如下:

用于DNA操作的酶

分為四大類(lèi):DNA聚合酶(DNA polymerase)、核酸酶(nuclease)、連接酶(ligase)、末端修飾酶(end-modification enzyme)。

作用是將游離核苷酸一個(gè)一個(gè)拼接成一串DNA序列。根據是否需要現有DNA或RNA分子為模板可將其分為 依賴(lài)模板的DNA聚合酶 (template-dependent DNA polymerase)與 模板非依賴(lài)的DNA聚合酶 (template-independent DNA polymerase)。

(一)依賴(lài)模板的DNA聚合酶

依賴(lài)模板的DNA聚合酶開(kāi)始合成DNA需要 引物 (primer)的支持,以形成一段小的雙鏈區。

依賴(lài)模板的DNA聚合酶除DNA合成功能外,通常還具 3’->5’外切核酸酶 (3’->5’ exonuclease)活性,使酶能夠將剛合成鏈的3’端不正確的核苷酸移走,這被稱(chēng)作校正(proofreading)。以及不太常見(jiàn)的 5’->3’外切核酸酶 (5’->3’ exonuclease)活性,這能對正在合成的鏈前端已經(jīng)結合的多聚核苷酸進(jìn)行及時(shí)移除,為新鏈的合成掃除障礙。

值得一提的是,以上DNA聚合酶的功能同時(shí)起作用, 3’->5’外切核酸酶活性對剛形成的DNA進(jìn)行移除,好在聚合酶的功能通常比外切酶的功能更活躍,多聚核苷酸被完全降解才得以避免。但因外切酶活性的存在,DNA鏈就有“缺損”的可能,因此測序需使用特定的測序酶(sequenase),以保證序列完整。

舉例:Kornberg聚合酶、Klenow聚合酶、測序酶、PCR酶、逆轉錄酶。

(二)模板非依賴(lài)的DNA聚合酶

該酶能在一段DNA分子端口處一個(gè)接一個(gè)地添加核苷酸,而無(wú)需模板與之配對。顯然只有平末端、單鏈及單鏈尾巴能夠加上核苷酸。該類(lèi)酶又被稱(chēng)作末端修飾酶。

作用是通過(guò)切斷連接兩個(gè)核苷酸之間的**酸二酯鍵降解合成好了的DNA分子。包括外切核酸酶(exonuclease)、內切核酸酶(endonuclease),其中 限制性?xún)惹泻怂崦?/strong> (restriction endonucleases)具有序列特異性?xún)惹心芰Α?/p>

我們在利用限制性?xún)惹泻怂崦缸鎏禺愋郧懈钊訒r(shí)必先需知目的片段兩端的序列,這就要求做DNA測序。在測序發(fā)明以前,人們利用發(fā)現的限制性?xún)惹泻怂崦缸隽肆闼榈奶剿餍缘挠幸鎳L試,認識到諸多的基因及其功能,但無(wú)法提前設計和針對性探索。直到一代測序的誕生,限制性?xún)惹忻傅那懈钗稽c(diǎn)得以明晰。如此一來(lái)便能根據基因表達精確設計引物,進(jìn)而克隆。測序方便了限制性?xún)惹泻怂崦傅膽?,使得提前設計成為可能。

這里說(shuō)一句,諸如Southern hybridization需要探針(probe)的實(shí)驗,按照設想也需已知目的DNA的部分序列,用以設計探針,才能開(kāi)展。但Southern hybridization于1975年發(fā)明,而Sanger法測序1977年才問(wèn)世,有些疑惑,筆者未讀原文,存疑至此。

作用是將兩個(gè)不同分子的末端核苷酸或單個(gè)分子的兩末端核苷酸通過(guò)**酸二酯鍵連接起來(lái)。黏性末端的連接效率高得多。因此,發(fā)現一些將平末端轉變成黏性末端的方法。

一種方法是利用 連接子 (linker)或 接頭 (adaptor),利用連接酶將它們接在平末端(因為加入的連接子或接頭濃度極高,故連接效率還不錯),前者還需用限制性?xún)惹泻怂崦讣庸?,后者自身便是黏性末端,使用更為方便?/p>

另一種方法是通過(guò) 同聚物加尾 (homopolymer tailing),通過(guò) 末端脫氧核糖核苷酸轉移酶 (terminal deoxynucleotidyl transferase)實(shí)現。這是一種模板非依賴(lài)的DNA聚合酶(末端修飾酶),它能在平末端3’端添加任意核苷酸。(此方法沒(méi)有用到連接酶)

作用是改變DNA分子末端,為連接實(shí)驗的設計增加重要的可操作空間。除前面的末端脫氧核糖核苷酸轉移酶,常用的還有 堿性**酸酶 (alkaline phosphatase)和 T4多聚核苷酸激酶 (T4 polynucleotide kinase)。前者能去掉DNA分子5’端的**酸基團,從而阻止這些分子連接到其他分子上;后者則是能向5’端添加**酸基團。

利用末端修飾酶可設計出想要的分子標記。

T. A. 布朗. 基因組3[M]. 第一版. 北京: 科學(xué)出版社, 2009.

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