nucleic acid base 中文意思是什麼
nucleic acid base
解釋
核酸堿-
With the base of related research on nucleic acid immunization, the technology was used to develop th e research and application of cpti transgenic plant. a new antibody preparation method by nucleic acid immunization to assay the expression of the transgenic gene was explored and compared with the traditional one which immune animal by protein
在國內外大量核酸免疫的研究基礎上，本研究首次將核酸免疫技術應用於轉基因植物檢測研究中，探討一種核酸免疫法制備抗cpti抗體來檢測基因表達的方法，並與傳統的蛋白免疫方式制備抗體進行比較。 -
Antisense nucleic acid technique is a method using single - stranded complementary sequences with specificity assigned by watson - crick base - pairing targeted specific messenger rna or dna to block expression of target gene
反義核酸技術是根據堿基互補原理，使用與目標靶的遺傳物質（ mrna或dna ）特定互補的核酸片段封閉基因表達的技術方法。 -
The mechanism is that the introduced complementary oligonucleotides can bind to the corresponding mrna or double - stranded dna in genome and form partial double - stranded molecules or triple - stranded nucleic acid molecules by sequence - specific and nonsequence - specific antisense action, thus the target gene will be orientationally blocked and expression of the target inhibited so that therapeutic effect could be attained. in this study, we designed a fragment of human c ii ta cdna in antisense orientation using mrna of c ii ta as template. the primers were designed based on 94 - 500 nucleotides segment in 5 " end of ciita gene so that the interested gene contained 407 base pairs which included two aug codons in 1 16 and 188 nucleotides as well as the splicing site between the first and the second exons
本研究設計以c tamrna為模板的反義cdna片段，從c ta基因5 』端第94位到500位核苷酸段設計引物，目的片段407bp ，覆蓋第116和188位兩個aug密碼子，也包含了第一外顯子和第二外顯子間的剪接位點：用常規分子生物學方法構建了反義片段的腺病毒表達載體（ padeasy - 1系統） ；腺病毒載體經hek293細胞包裝產生含反義片段的重組腺病毒，用氯化銫密度梯度離心法獲得純化的高滴度腺病毒；進行體外基因轉移，分別用反義片段真核表達載體轉染p388d1細胞和用重組腺病毒感染hela細胞，觀察導入的c ta基因反義rna抑制細胞內組成型或誘導型c ta基因表達的作用，從而達到調控mhc -類分子表達的目的。
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