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adenine n.【生物化學】腺嘌呤。

adenitis

The results show that ( 1 ) loops are in general more variable than stems , and in loops a strong adenine bias are observed : ( 2 ) there does not exist a saturation effect in stems , loops or all positions of the 16s rrna gene fragments : ( 3 ) in the molecular cladogram , bagarius forms a sister group with glyptothorax , and euchiloganis forms a sister group with pareuchiloglanis , and exostoma forms a sister group with glyptosternum : ( 4 ) the phlogenetic positions of pseudecheneis , exostoma and glyptosternum are not recognized ; the glyptosternoid fishes are not monophyly although they are defined by 13 osteological apomorphies ; the incongruence of cladograms between molecular and morphological sets may be caused by less informative sites of the 550 homologous sites ; ( 5 ) e . davidi and e . kishinouyei could be the same species according to the genetic distances ; p . sinensis and p . anteanalis could be too 結果表明: ( 1 )環區平均變異位點較莖區多,有很強的a偏好性; ( 2 )沒有替代飽和現象; ( 3 )分子系統樹上?屬和紋胸?屬構成姐妹群,石爬?屬和?屬構成姐妹群, ?屬和原?屬構成姐妹群; ( 4 ) ?屬、原?屬和褶?屬的系統發育位置不定, ? ?魚類并未形成一個單系類群;可能的原因是所得到的16srrna基因片段信息位點太少; ( 5 )青石爬?和黃石爬?可能是同一物種,中華?和前臀?可能是同一物種。

All of our products is exported like nucleotides mix , adenosine monophosphate , cytidine monophosphate , guanosine monophosphate disodium , uridine monophosphate disodium , calcium inosinate , calcium guanylate , calcium 5 - ribonucleotide , damp , dcmp , dgmp , tmp , deoxyadenosine , 2 , 6 - diaminopurine nucleoside , 2 , 6 - diaminopurine deoxynucleoside , adenine arabinoside , adenosine triphosphate , uridine triphosphate , guanosine triphosphate , cytidine triphosphate , cytidine diphosphate choline ( citicoline ) to all over the world , if you are interested in our products , please do visit our website , hope there will fullfill your requirement 主營產品有核苷酸,腺苷酸,胞苷酸,鳥苷酸二鈉,尿苷酸二鈉,肌苷酸,鳥苷酸鈣,核糖核苷酸鈣,脫氧腺苷酸,脫氧胞苷酸,胸苷酸二鈉,脫氧鳥苷酸二鈉,脫氧腺苷, 2 -氨基脫氧腺苷, 2 -氨基腺苷,阿糖腺苷,胞二磷膽堿,腺苷三磷酸,三磷酸尿苷,三磷酸胞苷,三磷酸鳥苷等

Ricin a chain ( rta ) is an active chain and has specific n - glycosidase activity , which excises a specific adenine residue ( a4324 in rat ) from a highly conserved loop of 26 or 28s rrna in 60s ribosomal subunits . this cleavage of adenine can lead to the disruption of ribosomal function , thereby , inhibits the protein synthesis and then cause the death of cells A鏈是活性鏈,具有n -糖苷酶活性,可催化切斷真核生物60s亞基28srrna中第4324位腺嘌呤與核糖分子之間的糖苷鍵,使其脫去一個腺嘌呤,使核糖體60s亞基失活,從而抑制蛋白質的合成。

All of our products is exported likelactobacillus acidophilus , bidifobacterium longum , lactobacillus paracasei , lactobacillus rhamnosus , tagatose , lnulin , nisin , natamycin , - polylysine , nucleotides mix , adenosine monophosphate , cytidine monophosphate , guanosine monophosphate disodium , uridine monophosphate disodium , calcium inosinate , calcium guanylate , calcium 5 - ribonucleotide , damp , dcmp , dgmp , tmp , deoxyadenosine , 2 , 6 - diaminopurine nucleoside , 2 , 6 - diaminopurine deoxynucleoside , adenine arabinoside , adenosine triphosphate , uridine triphosphate , guanosine triphosphate , cytidine triphosphate , cytidine diphosphate choline ( citicoline ) to all over the world , if you are interested in our products , please do visit our website , hope there will fullfill your requirement 主營產品有益生菌(嗜酸乳桿菌、長雙歧桿菌、干酪乳桿菌、鼠李糖乳桿菌) 、塔格糖、菊粉(菊糖) 、乳酸鏈球菌素、納他霉素、 -聚賴氨酸、核苷酸,腺苷酸,胞苷酸,鳥苷酸二鈉,尿苷酸二鈉,肌苷酸,鳥苷酸鈣,核糖核苷酸鈣,脫氧腺苷酸,脫氧胞苷酸,胸苷酸二鈉,脫氧鳥苷酸二鈉,脫氧腺苷, 2 -氨基脫氧腺苷, 2 -氨基腺苷,阿糖腺苷,胞二磷膽堿,腺苷三磷酸,三磷酸尿苷,三磷酸胞苷,三磷酸鳥苷等

( 3 ) the data support that roe deer ( capreolus capreolus ) moved into hydropotinae ( presently in which there is only one species : hydropotes intermix ) and stemed its own independent genus ; ( 4 ) the results are object to the usual standpoint that dusky musk deer and alpine musk deer are two different species ; ( 5 ) it is more reasonable that moschidae ( musk deer ) is placed at the level of super family ; ( 6 ) the number of transition within 12s rrna is within the range of 2 to 20 times bigger than that of transversion ; ( 7 ) as to nucleotide composition , adenine ( a ) is much more abundant than any of other bases ( averagely 36 . 88 % ) and guanine ( g ) is the least ( averagely 17 . 65 % ) in the complete sequence , which is similar with the loop region ( 4 )黑麝與馬麝的12srrna基因序列完全相同, 12srrna基因數據不支持黑麝與馬麝為兩個種。 ( 5 )本實驗結果支持麝作為上科的分類階元存在。 ( 6 ) 12srrna基因的堿基代換中轉換數遠遠大于顛換數( 2 - 20倍) ( 7 ) 12srrna基因二級結構中,全序列核苷酸的堿基組成腺嘌呤( a )最多(平均為36 . 88 ) ,鳥嘌呤最低(平均17 . 65 ) ,與環區的堿基組成相類似。

It is toxic for most mammalian cells since ricin a chain ( rta ) is an rna specific n - glycosidase that removes a specific adenine residue in a highly conservative region from among over 4000 nucloside residues present in 28s rrna , and causes protein synthesis inhibition and cell death Rta具有n -糖苷酶活性,可催化28srrna在4234位脫去腺嘌呤,使核糖體60s亞基失活,從而抑制蛋白質合成,導致細胞死亡。 b鏈( rtb )是結合鏈,能和細胞表面半乳糖受體結合,協助a鏈進入細胞內。

Pumpkin amylose ' s active ingredients include fenugreek , adenine , pent - polysaccharide which can stmulate secrete insulin . and the fru - mucus which combines with the extre cholesterin in the boby can defend arteriosclerotic disease 南瓜甘溫無毒,有補中益氣功效。其含有葫蘆巴堿、腺嘌呤、戊聚糖、甘露醇等多種有益物質,有促進胰島素分泌的作用。豐富的果膠,與人體內多于的膽固醇結合,有防止膽固醇過高,預防動脈硬化等功效。

Adp ( adensine diphosphate ) a nucleotide consisting of adenine and ribose with two phosphate groups attached . the second phosphate is attached to the first by a high - energy bond 腺(嘌呤核)苷二磷酸:一種由腺嘌呤和核糖再加上兩個磷酸組成的核苷酸。其中第二個磷酸以高能鍵與第一個磷酸結合。

The distribution of nitric oxide synthase ( nos ) in the rhabdophis tigrinus brain was studied by using reduced nicotinamide - adenine - dinucleotide phosphate ( nadph ) - diaphorase histochemistry 摘要運用nadph - d組織化學方法,對虎斑頸槽蛇腦的一氧化氮合酶進行了定位研究。

The base ratio of 1 : 1 for the bases adenine and thymine and the bases cytosine and guanine was the first clue to the specificity of base pairing in the nucleic acids 在核酸中的堿基配對高度專一性的原則決定了腺嘌呤與胸腺嘧啶,或鳥嘌呤與胞嘧啶之間的比值為1 : 1 。

Adenosine ( adenine nucleoside ) a nucleoside formed from adenine linked to dribose with a glycosidic bond . adenosine triphosphate ( atp ) is a nucleotide derived from adenosine 腺苷:腺嘌呤與d -核糖以糖苷鍵結合形成的核苷。 atp就是由腺苷中獲得的核苷酸。

Members of the purine group include adenine and guanine , which are constituents of the nucleic acids , and certain plant alkaloids , e . g . caffeine and theobromine 嘌呤基的成員包括腺嘌呤和鳥嘌呤,它們是核酸以及某些植物生物堿的成分,如咖啡因和可可堿。

Normal dna consists of four bases - adenine , cytosine , guanine and thymine ( known as a , c , g , t ) - molecules that spell out the genetic code in pairs 正常dna由四種堿基組成腺嘌呤、胞嘧啶、鳥嘌呤、胸腺嘧啶,這些分子以成對的方式組成基因的密碼。

Fad ( flavin adenine dinucleotide ) a derivative of riboflavin that is a coenzyme in electron - transfer reactions 黃素腺嘌呤二核苷酸( fad ) :核黃素的衍生物,在電子傳遞反應中是一種輔酶,它作為各種脫氫酶的輔助基團起作用。

An adenine on one chain is always matched with a thymine * on the other chain , and a guanine with a cytosine 在一個鏈上一個腺嘌呤分子總是與另一個鏈上的一個胸腺嘧啶相匹配,而一個鳥嘌呤總是與一個胞核嘧啶分子相匹配。

In dna , four different bases are found . two of these , adenine and guanine , are double - ring structures called purines 在dna中,有四種不同的堿基,其中的兩個為腺嘌呤和鳥嘌呤,即稱為嘌呤的雙環結構。

In dna , four different bases are found . two of these , adenine and guanine , are double - ring structures called purines 在dna中,有四種不同的基,其中的兩個為腺嘌呤和鳥嘌呤,即稱為嘌呤的雙環結構。

Objective to identity adenine phosphoribosyltransferases in schistoma japonicum and analyze their structural features 摘要目的鑒定日本血吸蟲中存在的腺嘌呤磷酸核糖轉移酶,分析其蛋白結構特征。

The most likely mechanism for this effect is inhibition of the mitochondrial translocation of adenine nucleotides 這種抑制效應,極可能是壓抑腺嘌呤核?酸的線粒體易位而造成的。