codons

小编由分享时间：2025-05-17 01:19:45

变形

复数：codons

英英释义

codon[ 'kəudɔn ]

n.a specific sequence of three adjacent bases on a strand of DNA or RNA that provides genetic code information for a particular amino acid

用法：

词组短语

stop codon终止密码子；停止密码

双语例句

1.HOWMUCHPROTEINSECONDARYSTRUCTURALINFORMATIONDOSYNONYMOUSCODONSCARRY?同义密码子携带多少蛋白质二级结构信息？www.ilib.cn2.Thegenetic information contained in DNAconsistsofalinearsequenceofsuccessivecodingunits,knownAScodons.DNA中的遗传信息是由连续的编码单位即密码子的线形序列构成的。dict.ebigear.com3.Allamino acidsexceptmethionineandtryptophanarespecifiedbytwoormorecodons.除蛋氨酸和色氨酸外的所有氨基酸可根据两种或两种以上基码确定。bbs.translators.com.cn4.Butiftheirnewbacterium is at least viable,itwillhave43codonsthatcanbere-assignedtoothertasks.不过，只要他们的新品细菌可以存活，这个细菌将有额外的43个基码可以被分配去做其他任务。www.ecocn.org5.Thelettersaregroupedintothree-letter"words"knownascodons, meaning that thereare64ofthem.这些字母可三个一组地组成“单词”，称为基码（codon），这样的基码总共有64个。www.ecocn.org6.Alternativeinitiationcodonsandupstreamopenreadingframesalsowereidentifiedformanyyeastgenes.很多酵母基因的另外的起始启动子和上游开放阅读框也被确定。chinapubmed.net7.But,withmorecodonsthanaminoacids,manyamino acidshavemorethanonecodontodescribethem.由于基码的数量比氨基酸多，许多氨基酸有超过一个基码来表述它们。www.ecocn.org8.TheyintendtorecodeE.colicompletely,eliminatingtheredundantcodons.他们想对大肠杆菌完全地重编码，减少基码冗余。www.ecocn.org9.Atthatpoint, each scientist haddiscoveredthebasecompositions,butnotthesequences,ofmany of the codons.在那之前，他俩都发现了许多密码子的碱基组成，但序列仍未解开。10.NowChin'steamhavecreated256blankfour-lettercodonsthatcanbeassignedtoamino acids that don't evenexistyet.现在秦的研究小组已创建了256个四个字母的空白密码子，可以分配给那些甚至尚未存在的氨基酸。

权威例句

The 'effective number of codons' used in a gene.

Selection of AUG initiation codons differs in plants and animals.

When cells stop making sense: effects of nonsense codons on RNA metabolism in vertebrate cells

Correlation of nonsense sites in the lacI gene with specific codons in the nucleotide sequence

Context effects and inefficient initiation at non-AUG codons in eucaryotic cell-free translation systems.

An mRNA Surveillance Mechanism That Eliminates Transcripts Lacking Termination Codons

Codon usage in regulatory genes in Escherichia coli does not reflect selection for 'rare' codons.

Recognition of AUG and alternative initiator codons is augmented by G in position +4 but is not generally affected by the nucleotide...

Correlation between the abundance of Escherichia coli transfer RNAs and the occurrence of the respective codons in its protein genes...

Ikemura, T.: Correlation between the abundance of Escherichia coli transfer RNAs and the occurrence of the respective codons in its ...

造句：

1. Nonsense-mediated decay checks for the presence of premature nonsense codons.

无意义介导的衰变检查是否存在过早的无意义密码子。

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2. This gene consists of 337 codons.

该基因由337个密码子组成。

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3. Codons that mark the end of translation.

标明转译结束位置的密码子。

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4. Of the KRAS mutations detected, 17% were outside of codons 12 and 13.

KRAS的基因突变中，我们检测到17%是位于12号和13号密码子以外的。

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5. 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。

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6. The variations of nucleotide mainly occurred the replace of synonymous codons.

核苷酸序列变化主要表现在同义密码子的置换。

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7. There are 64 possible codons, 61 of which specify the 20 amino acids that make up proteins.

可能组合成64种密码子，其中61种指明了组成蛋白质的氨基酸。

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8. Sequence analysis revealed sequence differences of 1-3 nucleotides involving three separate codons.

核苷酸顺序分析表明存在1—3个核苷酸取代。

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9. The letters are grouped into three-letter "words" known as codons, meaning that there are 64 of them.

每3个这样的字母形成一个被称为密码子的“单词”，这意味着一共有64个密码子。

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10. Conclusion: No correlation was found between glucocorticoid receptor gene in exon 2/1 codons 23 and asthma.

结论：江西籍汉族人种中糖皮质激素受体基因外显子2/1密码子23基因未发现多态性的存在。

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11. But if their new bacterium is at least viable, it will have 43 codons that can be re-assigned to other tasks.

不过，只要他们的新品细菌可以存活，这个细菌将有额外的43个基码可以被分配去做其他任务。

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12. The genetic information contained in DNA consists of a linear sequence of successive coding units, known AS codons.

DNA中的遗传信息是由连续的编码单位即密码子的线形序列构成的。

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13. The results show that some codons' usage in synonymous codon repeat sequences is different from the codon usage in all coding sequences;

结果表明一部分密码子在同义密码子重复序列中的使用与其在全编码序列中明显不同。

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14. The compositions associated with stop codons are constrained, it is one of factors that affects the base distribution in protein-coding genes.

这表明终止密码子在不同层次上限制基因组分的使用，是影响基因碱基分布的因素之一。

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15. Sequence analysis showed that its nucleotide sequence had high identity to a Japanese isolate of RDV and contained high percent of rare codons.

序列分析表明该基因与日本株具有高度同源性，并且含有较高比例的稀有密码子。

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16. Dr Wang has managed to reassign one of the stop codons in E. coli, the bacterial workhorse of geneticists, to recognise an unnatural amino acid.

王博士已经成功的让大肠杆菌(遗传学家的常用工作菌种)中的一个密码子重新分配去编码一个非自然氨基酸。

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17. Among the polymorphic sites, the nucleotide substitutions in the first and second positions of the codons accounted for 36.76% and 35.29%, respectively.

在这些多态性变异位点中，出现在遗传密码子第一和第二位上的碱基替换率分别为36.76%和35.29%。

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18. The numerical results for a group of roughly estimated parameters show that the proposed model may be able to explain the nonrandom usage of synonymous codons.

对干一组粗略估计的参数进行数值计算的结果表明，本文提出的模型能较好地解释同义密码于的非均匀使用问题。

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19. In the genetic code that life has used up to now, there are 64 possible triplet combinations of the four nucleotide letters; these genetic "words" are called codons.

从生命开始使用遗传密码到现在，核苷酸的四个字母的三重组合有64个可能，这些遗传“字词”被称为密码子。

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20. All but three of the codons correspond to particular amino acids, and the order of the codons in the nucleic acid corresponds to the order of the amino acids in the protein.

所有三个基码同特定的氨基酸相吻合，而基码在核酸中的顺序，同氨基酸在蛋白质中的顺序一致。

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21. The relative usage degree of the synonymous codon is computed and the use of preferences of the synonymous codon in 78 human genes (19967 codons) is analysed based on the quasi-amino acids coding.

计算了基于拟氨基酸编码方法下的同义密码子的相对使用度，分析了78个人类基因(19967个密码子)中基于拟氨基酸编码方法下的同义密码子的偏好使用情况。

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22. The relative usage degree of the synonymous codon is computed and the use of preferences of the synonymous codon in 78 human genes (19967 codons) is analysed based on the quasi-amino acids coding.

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