dna transcriptase 中文意思是什麼

dna transcriptase 解釋
dna轉錄酶
  • dna : 1. deoxyribonucleic acid 【生物化學】去[脫]氧核糖核酸。2. deoxypentose-nucleic acid 去[脫]氧戊糖核酸。
  • transcriptase : 轉錄酶
  1. Introduction telomerase is a ribonucleoprotein reverse transcriptase that synthesizes telo - meric dna sequences using its rna as template. it can remedy the loss of te - lomere after cellular mitosis, maintain telomere length and stabilize chromosome

    前言端粒酶（ telomerase ）是一種核糖核蛋白逆轉錄酶，能以自身的rna為模板，從頭合成染色體末端的端粒dna ，彌補細胞分裂時端粒dna的丟失，維持端粒的長度並穩定染色體。
  2. Telomerase is a celler reverse transcriptase which catalyzes the synthesis and extension of telomeric dna. telomerase activation is not observed in normal tissues of somatic origin but in almost 90 % of human cancer, with the result the telomere shorten progressively with cell division and thus is a critical step for multistep carcinogenesis

    正常人體細胞（非生殖細胞）中端粒酶活性的表達很低，或用目前的方法幾乎檢測不到，而在90以上的惡性腫瘤中可檢測到端粒酶活性，相應的良性腫瘤則為陰性或僅有少數陽性。
  3. Comparing with using mulv reverse transcriptase or amv reverse transcriptase to do reverse transcription at 3 7 - 42 " c, more accurate and complete dna could be gotten by using tag dna polymerase at 72 c since dimeric structure of mrna was opened fully at high temperature

    與在37 - 42用mulv或amv進行反轉錄相比，在較高溫度下（ 72 ）用taqdna聚合酶進行反轉錄有利於正確、完整的cdna ，因為在高溫下mrna的二級結構被充分打開。
  4. A reverse - transcriptase polymerase chain reaction ( rt - pcr ) based technique was developed to detect newcastle disease virus ( ndv ) of different poultry species origin. four oligonucleotide primers, based on the differences of nucleotide sequence at the cleavage site of fusion ( f ) protein gene between virulent and non - virulent strains of apmv - 1, were designed to amplify specific dna fragment from different viruses

    依據apmv - 1融合蛋白（ f ）基因裂解位點的核苷酸序列與其毒力的相關規律，分別設計合成了四條寡核苷酸引物，建立了一個可迅速檢測不同禽源apmv - 1並可鑒定強、弱毒株的逆轉錄酶?聚合酶鏈式反應（ rt - pcr ）技術。
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