codon 中文意思是什麼

( 2 ) at translation level plant mutual sequence of starting translation aaca was added to start codon of t - pa gene by pcr ampliation and plant expression vector pbet was constructed

（ 2 ）在翻譯水平上通過pcr擴增的方式在t - pa基因起始密碼子處添加了植物翻譯起始共有序列aaca ，構建了植物表達載體pbet 。

Because of this coding relationship, triplet of bases is called a codon.

由於這種編碼關系，堿基的三聯體被稱為密碼子。

Codon pair usage and genome evolution for 6 mode species

幾種模式生物密碼對的使用和基因組進化

Codon usage in genes coding for proteins with different folding types

不同折疊類型蛋白編碼基因的密碼子使用

Correlation between the mutation of the dcc gene codon 201 and gastric cancer

基因201密碼子突變與胃癌相關性的研究

Analyzing the characteristics of start codon in prokaryote and yeast genomes

原核生物和酵母基因組中起始密碼的特徵分析

Methods and applications of inserting a stop codon into a cloned gene with pcr

在已克隆基因末端添加終止密碼的方法與應用

Method for the design of mrna detecting genechip based on codon usage bias

一種基於密碼子使用偏性的檢測型基因晶元設計方法

Chain termination codon

鏈終止密碼子

Chain initiating codon

鏈起始密碼子

Comparison and analysis of synonymous codon repeat sequences in different genomes

不同基因組中同義密碼子重復序列的分析與比較

Among the 17 isolates, 8 isolates display tcg - ttg mutation in codon 531, 5 isolates have cac - tac or aac or cgc mutation in condon 526, 3 isolates have gac - gtc mutation in codon 516, and the last one has caa - aaa mutation in codon 513

其中8株為531位密碼子tcg ttg的突變， 5株為526位密碼子cac tac或aac或cgc的突變， 3株為516位密碼子gac gtc的突變，另一株發生了513位密碼子caa aaa的突變。

Two spider silk protein genes ( avfl and avf2 ) screened from the library are characterized in a lot of repetitive motifs, a high guanosines or cytidines content, a strong preference for adenosine or thymidine in the third position of a codon and rich residues of glycines or alanines in the proteins translated

試驗結果，該文庫容量為4 . 9 10 ~ 6 。從文庫中篩選到avf1和avf2蛛絲蛋白新基因，具有典型重復序列多， g c含量高，密碼子第三個堿基偏愛使用a t及編碼蛋白中含有大量gly和ala殘基等特點。

In this paper, first strand cdna of 3abc gene was synthesized using template rna extracted from cells infected with fmdv. the complete 3abc gene about isoobp was amplified by pcr and ligated into pgem - t easy vector. after transforming e. coli dh5 a, ampicillin resistant colonies were isolated and plasmid dna was prepared and analyzed by restriction analysis and pcr. presence of the full length 3abc gene was verified by nucleotide sequence analysis and the plasmid containing the expected sequence was named as pgem - 3abc. comparing the aquired sequence of 3abc with that of reference strains, the homology is more than 99 percent. the pgem - 3abc was digested with sal i and bgl ii and ligated into xho i and bgl ii - digested expression vector ptriex - 4 neo. lt was identified by restriction analysis and pcr and sequencing that this fragment had a 17bp deletion hi the nucleotide sequence 708bp of 3abc gene, which happened to form a terminator codon behind 3ab gene, but it contained the complete open reading frame ( orf ) of 3ab gene. positive clones were selected and induced with lmmol / l isopropyl - d - galactoside ( iptg ), bacteria were detected by sds - page and western blotting after properly treated. the results showed that the 3ab gene expressed successfully in e. coli and 33. 5ku fusion protein can be recognized by the positive bovine serum of fmdv. the amount of target protein is over 26 % of the total bacteria protein by gel thin layer scanning analysis

擴增產物連接到pgem - teasy載體中，轉化大腸桿菌dh5菌株，篩選氨芐青霉素抗性菌落，提取質粒經酶切鑒定、 pcr分析以及確證性測序證明，所克隆的1500bp左右的片段含有完整的3abc基因，與國外參考序列相比，同源性在99以上。將重組質粒pgem - 3abc和表達載體ptriex - 4neo分別用sal和bgl與xho和bgl消化后，亞克隆3abc基因至原核表達載體ptriex - 4neo中，通過酶切鑒定、 pcr擴增以及序列分析，發現克隆到ptriex - 4neo載體上的片段於3abc基因708bp處出現了17bp的缺失，碰巧在3ab基因后形成一終止密碼子，但3ab基因的閱讀框架完整，選出含有3ab基因完整閱讀框架的陽性克隆，用iptg誘導表達，收集菌液進行sds - page電泳、 westernblotting分析，結果表明， 3ab基因在大腸桿菌中成功表達，其表達產物為分子量33 . 5ku的融合蛋白，並能被口蹄疫病毒陽性血清識別。經薄層掃描分析，表達量占總蛋白量的26以上。

2. the sequence of si gene from ibv - lx4 strain was consisted of 1614 bp from initiation codon atg to the possible cleavage site of spike glycoprotein, encoding for a 18 - amino signal - peptide with the n terminus of si protein and a polypeptide of 537 - amino acids. 19 highly conserved, potential glycosylation sites and 17 cysteines residues were characterized with si protein, homology analysis showe that there were gene deletion -

S1基因：其全序列共1614bp （從起始密碼子atg到s前體蛋白裂解位點） ，編碼537個氨基酸，其氨基端有一編碼18個氨基酸的信號肽序列，第12 13位氨基酸殘基構成了信號肽的切割位點， 14 19位與111 124位氨基酸殘基為s1蛋白的跨膜區域。

In 138 han samples, homozygous and heterozygous genotypes of codon 54 allele in mbl structural gene were 2. 17 % and 21. 01 % respectively, while in 120 uigurs samples, those were 0. 83 % and 18. 34 %

17 ，雜合子29例，佔zi刀1 ； 120份維吾爾族標本中，檢出突變純合子1例，佔0

The start reading framae and stop codons, base composition in protein - coding genes and the codon usage of amino acids in scolopendra multilane were compared with the three other myriapods

本研究在蛋白質編碼基因起始閱讀框和終止密碼子、蛋白質編碼區的堿基組中文摘要成、氨基酸及密碼子的利用等方面把少棘蜈蚣與另三種多足類進行了比較。

Sv40 polya signal and two loxp sites was added consecutively after the termination codon taa, and then a gfp gene was inserted between the two loxp sites

在三個終止密碼子taa之後，連上sv40polya 。 sv40polya之後，又連上兩個loxp位點。在兩個loxp位點，插入標記基因gfp 。

A late baculoviral transcription initiation motif ataag was found 65 nt upstream of the putative translational start site and a polyadenylation signal aataaa was identified 14 nt downstream of the taa stop codon

在其起始密碼子上游- 65nt發現桿狀病毒晚期啟動子轉錄起始信號ataag ，在其終止密碼子下游- 14nt發現polya加尾信號aataaa 。

Pcr method was used to identify candidate ms 188. sequence analysis indicated that a point mutation occurred in the second exon of the atmyb103 gene in male sterile mutant with caa ( gln ) replaced by a stop codon taa

利用pcr的方法從突變體中擴增atmyb103基因並進行序列分析，結果表明突變體中atmyb103基因第二個外顯子上發生了點突變，由原來編碼谷氨酰胺的caa密碼子突變為終止密碼子taa 。