码子

The most frequent rpoB gene mutations sites are Leu-531 ( 6 isolates , CAC → TAC ) , Tyr-526 ( l isolate , GAC → GTC ) and Val-516 ( 7 isolate, CAC → TAC ) .

19株 SSCP 阴性耐药株中经测序6株在531位密码子TCG→ TTG, 1株526位密码子CAC→ TAC,7株发生在516位密码子GAC→ GTC, 5株未改变.

Base mutation at sites 1 044 and 1 062 also led to produce a stop condon.

另外,在1044与1062的碱基突变也导致终止密码子的产生.

The most frequently used codons were NNA and the most infrequently were NNG.

使用频率最高密码子为NNA，使用频率最低的密码子为NNG。

The α-globin gene of yak was amplified and cloned by using the primers based on the conserved region of the upstream from the initiation codon and the downstream from the termination codon.

根据α-珠蛋白基因起始密码子上游及终止密码子下游的保守序列设计引物，以牦牛基因组DNA为模板克隆并测定了α-珠蛋白基因序列。

It also carries a specific nucleotide sequence, the anticodon.

它还带有特定的核苷酸序列即反密码子.

Case had 1 base pair insertion TT → TAT in 85 codon and 1 base pair deletion GCA → GA, which may result in nonsense mutation.

1例85密码子第2、3碱基之间插入A，同时86密码子第2碱基缺失，即GCA→GA导致无义突变。

Correspondence analysis has frequently been used for codon usage studies.

对应分析法在密码子用法的研究中频繁使用.

Analyzed functional sites contain transcription start sites, transcriptional termination sites, start codon, stop codon and junction sites of intron and exon.

分析的功能位点包括：转录起始位点，转录终止位点，起始密码子，终止密码子，内含子和外显子连接处等。

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

由于这种编码关系, 碱基的三联体被称为密码子.

A subset of possible encodings are presented in the Encoding submenu.

出现在编码菜单中的可选编码子集.

Sequence analysis revealed that the open reading frame of mcr gene was 1 347 bp in size, encoding 448 amino acids with ATG as initiation codon and TGA as termination codon.

序列分析的结果表明，此3.1kb外源片段中存在一长度为1347bp的完整的开放阅读框架（ORF），起始密码子为ATG，终止密码子为TGA，共编码448个氨基酸。

We further explored the correlation between synonymous codon bias and gene expression level and gene length.

进一步研究基因表达水平和基因长度与密码子使用偏爱之间的关系.

Mechanism of stop codon recognition of class I polypeptide release factor or termination codon reassignment are problems that have not yet been fully clarified, and should be further in-depth discussed.

总之，第一类肽链释放因子识别终止密码子的机制和终止密码子的重新分配机制是一个尚未完全瀍明的问题，有待做进一步深入的探讨。

We observe that average code distances fluctuate obviously near the initiation codon and termination codon. Remarkable changes also appear in the SD field of procaryotic organisms. 2.

分析结果在表明原核与真核分析对象的平均码距在起始密码子附近和终止密码子附近均呈现出显著变化，在原核生物的SD区域也有显著变化。

Comparison of relative preference of nucleosome binding motifs shows that the mode number of preferred nucleosome motifs in ± 500bp region around the transcription start sites, transcription termination sites, start codon and stop codon is different.

但对核小体结合模体的相对偏好性进行比较后发现，转录起始位点、转录终止位点、起始密码子和终止密码子附近±500bp的序列所包含的偏好的核小体结合模体模式数各不相同。

Having more than one codon specify the same amino acid. Used of a genetic code.

有不止一个密码子来指定同样的氨基酸.用于一种遗传基因.

Molecular surgery experiments showed that the wobble modification is essential for the interaction between the anticodon in tRNA and the codon in mRNA.

通过分子手术证实，此类碱基修饰对于维持这两种tRNA的反密码子与mRNA上相应密码子的相互识别至关重要，缺失了这种修饰的tRNA将无法识别一些对应的密码子。

This paper proposed an optimal and feasible system design and implementation of 1000 BASE-T physical coding sublayer.

提出了一种优化而可行的系统结构,并以硬件实现了千兆以太网物理编码子层.

However, stop codon susceptibility to gentamicin between different genes is difficult to predict.

但是, 不同基因的终止密码子对庆大霉素的易感性是难以预测的.

As a stop codon reaches the A-site of a translating ribosome , either termination or readthrough occurs.

当终止密码子进入核糖体翻译的A位时,将会发生翻译终止或是通读.

What is an anticodon, and what is its function?

什麽是反密码子, 功能为?

Comparative evolutionary analysis of lepidopteran identification of previously neglected coding genes as markers.

相比其他鳞翅目昆虫的基因组是同义密码子使用较少偏见.

The start codon of the COX ⅰ is ATG, while the termination codon TAA.

起始密码子为ATG，终止密码子为TAA。

Some TTA containing antibiotic resistant genes and regulatory genes still expressed in bldA deficient mutants, suggesting that there is an alternative pathway to translate UUA codon while bldA tRNA is not available.

bldA突变菌株中含TTA密码子的抗生素抗性基因、抗生素调节基因仍有表达，暗示存在一个替代bldA tRNA翻译UUA密码子的机制。

CONCLUSION: The expression of LZP 3 gene in yeast could be successfully improved by using codon optimization.

结论: 通过密码子优化,能显著提高LZP3基因在酵母细胞中的表达水平.

The active promoter fragment was cloned from actinophage? φ SL 60 and then sequenced by dideoxynucleotide sequencing system.

通过测定林可链霉菌噬菌体? SL60启动子活性片段的碱基,分析了该启动子的结构、核糖体结合位点、转录起始位点和翻译起始密码子等功能元件.

Introduction: About 30 % of inherited genetic disorders in humans result from premature termination codon mutations.

前言: 约30%的人类遗传性疾病起源于过早出现的终止密码子突变.

Recognition and Interaction between Codon and Anticodon

密码子与反密码子的识别和相互作用

Each codon stands for one amino acid , the building block of proteins.

每个密码子代表一个氨基酸.

Juxtaposed tRNAs, reading adjacent codes, bring together amino acids, are then covalently joined to together.

并列而排的转移RNA阅读 邻近的密码子, 带来氨基酸并将其以共价键连接起来.