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codon

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codon n.【生物學】(遺傳)密碼子。

n. 【生物學】(遺傳)密碼子。 “amber codon“ 中文翻譯：   琥珀密碼子,uag三聯體密碼子“ambiguous codon“ 中文翻譯：   雙關密碼子,意義含糊的密碼子,多義密碼子; 意義含糊的密碼子“ambivalent codon“ 中文翻譯：   相克性密碼子“codegenerate codon“ 中文翻譯：   互簡并密碼子,簡并密碼子; 簡并密碼子“codon bias“ 中文翻譯：   密碼偏愛,密碼子偏倚; 密碼子偏倚（性）“codon degeneracy“ 中文翻譯：   密碼簡并“codon differences“ 中文翻譯：   密碼子差數“codon family“ 中文翻譯：   密碼子偏倚; 密碼子組“codon type“ 中文翻譯：   密碼子型; 密碼子組“codon usage“ 中文翻譯：   密碼子使用，密碼子選擇; 密碼子型; 密碼子選擇“degenerate codon“ 中文翻譯：   簡并密碼子“hypervariable codon“ 中文翻譯：   超變密碼子; 超可變密碼子“initia codon“ 中文翻譯：   起始密碼子“initiation codon“ 中文翻譯：   起始密碼子“initiator codon“ 中文翻譯：   起動信號起始密碼子; 起始密碼“minority codon“ 中文翻譯：   稀少密碼子,調諧密碼子“missence codon“ 中文翻譯：   誤義密碼子“missense codon“ 中文翻譯：   誤義密碼子“modulating codon“ 中文翻譯：   蝶密碼子“nnsense codon“ 中文翻譯：   無義密碼子：鏈的終止密碼。“nonsense codon“ 中文翻譯：   無義密碼子“ocher codon“ 中文翻譯：   赭石密碼子“ochre codon“ 中文翻譯：   uaa三聯體密碼子; 艤密碼子“umber codon“ 中文翻譯：   uga密碼子; 乳白密碼子“codominant inheritance“ 中文翻譯：   共顯性遺傳“codon chain termination“ 中文翻譯：   密碼子鏈終止

The polyhedrin gene sequence in recombinant virus bmpak - hbmp can be more benefit to enhancing the expression of the hbsag ( pres2 + s ) from atg initial codon at the 5 “ ends of pres2 gene 另一方面， elisa檢測表明， presz抗原性提高率約是hbsag的14倍，提示bmpak hb帥中多角體基因部分堿基序列的存在更有利于從presz前的atg開始表達中蛋白全基因（ presz s ） 。

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5 ' race analysis indicated that ha 122 transcripts start predominantly in the consensus major late transcription initiation motif rtaag around 47nt upstream of the putative translation start codon with a minor start at position - 89 5 ’ race ( rapidamplificationofcdnaend )分析結果表明ha122基因的轉錄主要從翻譯起始密碼子上游第47個堿基起始，該處有一個晚期轉錄信號taag 。

The high at content of the native gene is very difficult to express , we designed a new he gene by reverse the codon used for e . coli and yeast , then , the he gene was cloned into the expression vector pqe - 60 本研究嘗試了其保護性抗原基因在大腸桿菌及酵母中的表達。天然bont a的hc片段基因中at含量高達76 ，其通過同義密碼子置換人工合成hc段基因，將at含量降到57 。

The polyhedrin gene sequence in recombinant virus bmpak - hbmp can be more benefit to enhancing the expression of the hbsag ( pres2 + s ) from atg initial codon at the 5 “ ends of pres2 gene 另一方面， elisa檢測表明， presz抗原性提高率約是hbsag的14倍，提示bmpak hb帥中多角體基因部分堿基序列的存在更有利于從presz前的atg開始表達中蛋白全基因（ presz s ） 。

In addition , the results of dna direct sequencing reveal that 1 out of 18 rifampin - resistant isolates has deletion in codons 513 and 514 of rpob , and the other 17 are all singe - point mutation in their rpob genes 此外， dna直接測序結果顯示， 18株耐利福平菌株中，一株rpob基因的513 、 514位密碼子發生了缺失，其它17株的rpob基因皆發生了單堿基突變。

We confirmed one single nucleotide polymorphism ( snp ) site in the exon 7 of cd226 gene with agt - ggt polymorphism of 307 codon . among ten volunteers , 4 cases are serine and 6 cases are glycine at this codon 在編碼cd226胞漿區第307位氨基酸的密碼子上存在agt ? ggt單核昔酸多態性（ singlenucleotidepolymorphism ， snp ） ；分別編碼絲氨酸和甘氨酸。

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。

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 。

6 . we examined the mode and tempo of evolution of cyt b in oedipodidae . for these grasshoppers , the most common amino acids and codons are leucine ( tta ) , isoleucine ( att ) and phenylalanine ( ttt ) 運用cytb基囚的核’苦酸序列對斑翅蝗科昆蟲進行系統研穴時，各屬種問的分類關系都比較明確，得到的樹的拓撲結構大都一致。

Base composition comparison of codons of the alpha - amylase gene of bombyx mori and bombyx mandarina it was shown by base composition comparison of the codons that it is very similar in both bombyx mori and bombyx mandarina 07 ，野桑蠶54 64 ） ；密碼子位3有強烈的啼陡偏好性，家蠶和野桑蠶的ct分別為67 77和67

The coding regions of wild bacillus thuringiensis cry1ie and cry1ac gene were modified according to plant preferring codons . the modified crylle and crylac gene were artificially synthesized 本研究根據植物所偏愛密碼子原則，改造蘇云金芽孢桿菌crylac ， crylie野生型基因的編碼區序列，人工合成crylac ， crylie基因。

What woese and others noted is that codons sharing two out of three bases tend to code for amino acids that are much alike in the extent to which they are repelled by or attracted to water 伍斯和其他人所注意到的是，那些三個字母中有兩個字母相同的密碼子，它們所指定的胺基酸，彼此在親水性與疏水性的程度上很類似。

The full length cdna ej175 was consisted of 603 bp to have an open reading frame from 57 to 515 including initiator codon and termination codon and to encode 152 amino acid polypeptide 將全長基因序列與genbank已知序列進行比對，其序列與擬南芥的pollenallergen - likeprotein568bp的編碼序列有56的同源性。

( 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 。

2 . to establish the frequency of codon 54 mutant allele and compare the difference of genotypes of mbl structural gene in the population of hans and uigurs 利用該技術對漢族、維吾爾族人群mbl結構基因第一外顯子ggc54gac突變進行檢測，并估算其基因頻率，比較漢族、維吾爾族該位點突變的差異。

All the authors are also scientific advisers to codon devices in cambridge , mass . , the first commercial enterprise launched to apply engineering principles to synthetic biology 他們共同撰寫這篇文章，是因為彼此專長各異，對生物制程的發展有不同的貢獻，代表了生物工程學跨學科的特色。

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，占zi刀1 ； 120份維吾爾族標本中，檢出突變純合子1例，占0

In order to improve the expression level of e2 gene in p . pastoris , 24 low - usage codons for p . pastoris were substitued by directed mutagnesis based on pcr 這表明對e2基因上低利用密碼子的改造是成功的，豬瘟病毒ez基因遺傳變異及體外表達研究為進一步大規模生產打下了基礎。

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之后，連上sv40polya 。 sv40polya之后，又連上兩個loxp位點。在兩個loxp位點，插入標記基因gfp 。